Relevant bibliographies by topics / Swing Arm

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Academic literature on the topic 'Swing Arm'

Author: Grafiati
Published: 7 June 2025
Last updated: 16 July 2025

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Journal articles on the topic "Swing Arm"

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Şipal, Meriç Selim, Elif Yalçın, and Aynur Ayşe Karaduman. "Effects of Gyroscope on Arm Swing and Gait in Healthy Volunteers." Applied Bionics and Biomechanics 2023 (March 15, 2023): 1–7. http://dx.doi.org/10.1155/2023/6630913.

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Background. Arm swing has a crucial role in gait. It is essential in terms of regulating gait parameters and balance during walking. In the case of bradykinesia, the arms act as a generator to maintain lower extremity movement while walking. The way gyroscopes work makes them useful in arm swings. In this study, the arm swing is facilitated by a new type of gyroscope. As a main purpose, a gyroscope was used to increase arm swing during pendulum exercise and walking. Methods. Thirty healthy volunteers were included in the study. The study covered three situations. The first evaluation was performed without the gyroscope. The second evaluation was performed while the gyroscope was installed but not activated. The final evaluation was made while the gyroscope was installed and powered up. The effect of the gyroscope on the arm swing was evaluated by the Dartfish®, and the gait was evaluated with the Zebris® force distribution measurement analysis system. Results. According to the results, the gyroscope increases the arm swing in the pendulum exercise ( p < 0.05 ). Furthermore, using the gyroscope, the step width decreased, and the gait cycle time increased ( p < 0.05 ). Conclusions. The gyroscope is suitable for facilitating arm swings in healthy volunteers. This study is essential to demonstrate the effect of a gyroscope on extremity movements for the first time. In the future, a medical device that has the features of a gyroscope can be designed for its use in the treatment of Parkinson’s disease and Senile Bradykinesia.
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Li, Wei Tat, Pei Xuan Ku, and Noor Zafirah Abu Bakar. "Topology optimization of swing arm for FSAE EV racing cars." Journal of Physics: Conference Series 2923, no. 1 (2024): 012007. https://doi.org/10.1088/1742-6596/2923/1/012007.

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Abstract The swing arm is an important mechanical part that it functions to support the weight of the vehicle and acts as a cushion when the shock absorbers are functioning. The purpose of this research is to investigate the stress and total deformation of swing arm design with different materials as well as evaluate the structural analysis of swing arm after conducting topology optimization. The research also aims to reduce the mass of the swing arm using topology optimization while meeting the minimum safety requirements. Three different swing arm designs would be created using SolidWorks. The designs would be analyzed using the structural analysis feature in the ANSYS Workbench where the parameters of this project such as stress along the swing arm, total deformation and factor of safety for each swing arm design are evaluated and compared. The chosen design would then be analyzed where steel and aluminium are selected as the material for the swing arm using ANSYS. The finalized swing arm would then undergo topology optimization where the reduction of mass of swing arm would occur. The optimized swing arm would be analyzed and the parameters obtained would be evaluated and compared with the unoptimized swing arm. The expected outcomes are the aluminium swing arm would present a lower distribution of stress along the body of swing arm, but higher total deformation compared to the steel swing arm. It is also expected that the distribution of stress and total deformation on swing arm would be higher after conducting topology optimization due to more force acting on the reduced or optimized surface area of the swing arm. Moreover, the factor of safety for optimized swing arm is expected to decrease following the reduction in mass of the swing arm. Hence, the research is focused on the analyzing of difference in data collected for swing arm as well as reducing the mass of the swing arm while meeting the minimum factor of safety.
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Warmerdam, Elke, Robbin Romijnders, Julius Welzel, Clint Hansen, Gerhard Schmidt, and Walter Maetzler. "Quantification of Arm Swing during Walking in Healthy Adults and Parkinson’s Disease Patients: Wearable Sensor-Based Algorithm Development and Validation." Sensors 20, no. 20 (2020): 5963. http://dx.doi.org/10.3390/s20205963.

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Neurological pathologies can alter the swinging movement of the arms during walking. The quantification of arm swings has therefore a high clinical relevance. This study developed and validated a wearable sensor-based arm swing algorithm for healthy adults and patients with Parkinson’s disease (PwP). Arm swings of 15 healthy adults and 13 PwP were evaluated (i) with wearable sensors on each wrist while walking on a treadmill, and (ii) with reflective markers for optical motion capture fixed on top of the respective sensor for validation purposes. The gyroscope data from the wearable sensors were used to calculate several arm swing parameters, including amplitude and peak angular velocity. Arm swing amplitude and peak angular velocity were extracted with systematic errors ranging from 0.1 to 0.5° and from −0.3 to 0.3°/s, respectively. These extracted parameters were significantly different between healthy adults and PwP as expected based on the literature. An accurate algorithm was developed that can be used in both clinical and daily-living situations. This algorithm provides the basis for the use of wearable sensor-extracted arm swing parameters in healthy adults and patients with movement disorders such as Parkinson’s disease.
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Mohammad Zakarianto, Kadek Rihendra Dantes, and I. Nyoman Pasek Nugraha. "Analisis Tegangan Statik Pada Rancangan Swing Arm Kendaraan Motor Listrik Ganesha 1.0 Generasi 2 Dengan Menggunakan Software Solidwork 2018." Jurnal Pendidikan Teknik Mesin Undiksha 11, no. 2 (2023): 213–22. http://dx.doi.org/10.23887/jptm.v11i2.64010.

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Dalam penelitian ini dilakukan analisis tegangan statik pada rancangan Swing Arm kendaraan Motor Listrik Ganesha 1.0 Generasi 2 dengan menggunakan Software Solidwork 2018 dengan beban pengendara (massa Swing Arm diperhitungkan) dan pembebanan dari pengendari pada Swing Arm standart dan modifikasi. Dengan tujuan mengetahui distribusi tegangan serta daerah kritis yang terjadi pada Swing Arm dengan berbahan pipa ASTM A106. Setelah proses analisis dilakukan, didapatkan tegangan von misses maksimum untuk Swing Arm standar tanpa beban pengendara sebesar 5,411 x 106 N/m2. Untuk Swing Arm modifikasi sebesar 3,216 x 106 N/m2. Untuk Swing Arm standar dengan beban pengendara sebesar 1,365 x 108 N/m2 dan Swing Arm modifikasi sebesar 8,112 x 107 N/m2. Faktor keamanan Swing Arm standar tanpa beban pengendara sebesar 73,9176 dan Swing Arm modifikasi sebesar 124,367. Untuk Swing Arm standar dengan beban pengendara sebesar 2,93094 dan Swing Arm modifikasi sebesar 4,93102. Dari hasil penelitian tersebut didapatkan bahwa setelah dilakukan modifikasi 2 meningkat dengan tanpa beban pengendara sebesar 40,6% lebih kecil dari Swing Arm standart dan dengan beban pengendara sebesar 40,5% lebih kecil dari Swing Arm standar sehingga dapat di simpulkan Swing Arm modifikasi lebih baik dan kuat dibandingkan dengan Swing Arm standar. Kata kunci : Swing Arm, Anasisis Tegangan statik, ASTM A106, Solidworks 2018, Tegangan Von Misses, Faktor Keamanan This research was analysis of static stress in the development of Swing Arm design on Ganesha 1.0 Generation 2 Electric Motor vehicles using Solidwork Software 2018 without the rider (Swing Arm mass in calculation) and with the ride’s load on standartd and modified Swing Arm. The aim was to know the distribution of stresses and critical areas that occour in the Swing Arm with ASTM A106 pipe. After the analysis process was done, the maximum von misses stress for the standard Swing Arm without the rider was 5,411 x 106 and the modified Swing Arm was 3,216 x 106 N/m2. For the standard Swing Arm with ride’sload was 1,365 x 108 N/m2 and the modified Swing Arm was 8,112 x 107. Factor of safety of standard Swing Arm without the rider was 73,9176 and the modified Swing Arm was 124,367. then, for the standard Swing Arm with the ride’swas 2,93094 and the modified Swing Arm was1. 4,93102. from the results of this study it is known that after modification 2 there is an increase without a rider load of 40,6% less than the standard Swing Arm and with a rider load of 40,5% less than the standard swing arm so it can be concluded that the modified Swing Arm is better and stronger than standard rocker arms. Keywords : Swing Arm, An analysis of static stress, ASTM A106, Solidworks 2018, Von Misses Stress, Factor of Safety.
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Ferraris, Claudia, Gianluca Amprimo, Giulia Masi, et al. "Evaluation of Arm Swing Features and Asymmetry during Gait in Parkinson’s Disease Using the Azure Kinect Sensor." Sensors 22, no. 16 (2022): 6282. http://dx.doi.org/10.3390/s22166282.

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Arm swinging is a typical feature of human walking: Continuous and rhythmic movement of the upper limbs is important to ensure postural stability and walking efficiency. However, several factors can interfere with arm swings, making walking more risky and unstable: These include aging, neurological diseases, hemiplegia, and other comorbidities that affect motor control and coordination. Objective assessment of arm swings during walking could play a role in preventing adverse consequences, allowing appropriate treatments and rehabilitation protocols to be activated for recovery and improvement. This paper presents a system for gait analysis based on Microsoft Azure Kinect DK sensor and its body-tracking algorithm: It allows noninvasive full-body tracking, thus enabling simultaneous analysis of different aspects of walking, including arm swing characteristics. Sixteen subjects with Parkinson’s disease and 13 healthy controls were recruited with the aim of evaluating differences in arm swing features and correlating them with traditional gait parameters. Preliminary results show significant differences between the two groups and a strong correlation between the parameters. The study thus highlights the ability of the proposed system to quantify arm swing features, thus offering a simple tool to provide a more comprehensive gait assessment.
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Rossi, Stephen J., Jim McMillan, Mandy Zody, and Thomas Buckley. "The Effect of No Arm Swing and Arm Swing on Drop Jump Performance." Medicine & Science in Sports & Exercise 43, Suppl 1 (2011): 833–34. http://dx.doi.org/10.1249/01.mss.0000402322.78973.8b.

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Hidayat, Nailul, Yufrizal A, Hendri Nurdin, Farid Kassimov, and Elnar Kenzhaliyev. "Installation of gussets to reduce stress on the junction between the arm and bridge on the swing arm." Journal of Engineering Researcher and Lecturer 2, no. 2 (2023): 14–20. http://dx.doi.org/10.58712/jerel.v2i2.75.

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The swing arm is one of the main components of a motorcycle that functions as a connection between the rear wheel and the frame. Under loading conditions, the joint area between the arm and the bridge experiences significant stress, leading to fractures in that region. This study aims to investigate the effectiveness of installing gussets to reduce the stress that occurs at the joint area between the arm and the bridge in the swing arm of ELGO electric motorcycles. The research was conducted using the static analysis simulation method with Solidworks 2021-2022 Research License software. The loading conditions were simulated based on the actual usage of the electric motorcycle. The simulation results revealed that without the installation of gussets, the joint area between the arm and the bridge in the swing arm experienced stress exceeding the yield strength of the material. This would inevitably lead to the breakage of the swing arm and potentially cause accidents for motorcycle riders. However, after the gussets were installed, the stress at the joint area between the arm and the bridge remained below the yield strength of the material. Based on these findings, it can be concluded that the installation of gussets successfully reduced the stress at the joint area between the arm and the bridge in the swing arm. This research outcome can serve as a reference for the design of swing arms for electric motorcycles.
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Quan, Wei Chuang, Mei Fa Huang, Zhi Yue Wang, and Da Wei Zhang. "Modal Analysis for Swing-Arm of LED Die Bonder." Advanced Materials Research 422 (December 2011): 379–82. http://dx.doi.org/10.4028/www.scientific.net/amr.422.379.

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Led die bonder used for bond lead frame and chip is one of the key equipment of led production line. The swing-arm is an important component of led die bonder and its dynamic characteristics will directly affect the piece accuracy. At present, the accuracy and efficiency of led die bonder are limited because of the vibration of the swing-arm. In solving this problem, a three-dimensional finite-element model for swing-arm is built to provide analytical frequencies and vibration modes. Then the modal distribution and vibration mode shapes for swing-arm are obtained after analyzing the modal by ansys10.0. Finally the dynamics effects of this structure by modal frequency and vibration mode are analyzed. The modal analysis of structural would provide the reference to dynamics analysis and structural optimization for swing-arm in practical use.
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Mollineda, Ramón A., Daniel Chía, Ruben Fernandez-Beltran, and Javier Ortells. "Arm Swing Asymmetry Measurement from 2D Gait Videos." Electronics 10, no. 21 (2021): 2602. http://dx.doi.org/10.3390/electronics10212602.

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Arm swing during gait has been positively related to gait stability and gait efficiency, particularly in the presence of neurological disorders that affect locomotion. However, most gait studies have focused on lower extremities, while arm swing usually remains ignored. In addition, these studies are mostly based on costly, highly-specialized vision systems or on wearable devices which, despite their popularity among researchers and specialists, are still relatively uncommon for the general population. This work proposes a way of estimating arm swing asymmetry from a single 2D gait video. First, two silhouette-based representations that separately capture motion data from both arms were built. Second, a measure to quantify arm swing energy from such a representation was introduced, producing two side-dependent motion measurements. Third, an arm swing asymmetry index was obtained. The method was validated on two public datasets, one with 68 healthy subjects walking normally and one with 10 healthy subjects simulating different styles of arm swing asymmetry. The validity of the asymmetry index at capturing different arm swing patterns was assessed by two non-parametric tests: the Mann–Whitney U test and the Wilcoxon signed-rank test. The so-called physiological asymmetry was observed on the normal gait sequences of both datasets in a statistically similar way. The asymmetry index was able to fairly characterize the different levels of asymmetry simulated in the second set. Results show that it is possible to estimate the arm swing asymmetry from a single 2D gait video, with enough sensitivity to discriminate anomalous patterns from normality. This opens the door to low-cost easy-to-use mobile applications to assist clinicians in monitoring gait condition in primary care (e.g., in the elderly), when more accurate and specialized technologies are often not available.
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Gupta, G. Srinivasa, CH Prithvi, and S. Jayanth Chowdary. "Design and analysis of light weight swing arm using generative design concept." E3S Web of Conferences 552 (2024): 01019. http://dx.doi.org/10.1051/e3sconf/202455201019.

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A Swing arm is a mechanical device that connects the rear wheel of the motorcycle to its body, allowing it to pivot vertically. It holds the rear axle firmly while pivoting to absorb bumps and suspension loads induced by acceleration and braking. Swing arm can be single or double-sided and has appeared in a variety of geometries. The original version consists of a pair of parallel pipes holding the rear axle at one end and pivoting at the other. A shock absorber is mounted just before the rear axle and attached to the frame, below the seat rail. The primary concern is to design a lightweight swing arm that can replace conventional motorcycle swing arm design, which consists of tubular sheet metal structure throughout the swing arm neglecting the stress-induced at various positions along the length of the swing arm, i.e. (from pivots to axle blocks). The vehicle selected for this project is Yamaha FZ-S V2. The material chosen for the swing arm are Al 6061, Al 6061 T6, and Al 7075. This project uses an iterative design method called Generative design to design a lightweight swing arm without compromising the mechanical properties and performance of its counterpart. Analysis of the part will be carried forward using static Analysis comprising various load cases and extreme load conditions. The whole design and analysis process is carried forward using Autodesk Fusion 360. This swing arm design involved economic utilization of material as it reflects the in the analysis through induced stresses.
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Dissertations / Theses on the topic "Swing Arm"

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Terada, Tomoki P., Masaki Sasai, Mitsunori Takano, Takeshi N. Sasaki, Akio Togashi, and Qing-Miao Nie. "Coupling of Lever Arm Swing and Biased Brownian Motion in Actomyosin." PLOS, 2014. http://hdl.handle.net/2237/20626.

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Nilsson, Philip. "Topology optimization of a swing arm for a track driven vechile." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149608.

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The development in additive manufacturing methods has cleared the path for topology optimizationby making it possible to produce complex geometries, which would not be possible to produce bytraditional manufacturing methods. Topology optimization uses iterative structural computations tond an optimal material distribution given a maximum optimization domain, load cases and/or otherstructural criteria. The relation between retained mass and structural performance of a swing armfor the vehicle BvS10 was examined for two different materials. The first material was an estimate of an additive manufactured material and the other for a high structural steel. Given the extreme load cases, the geometrical limits of the swing arm and by specifying how much mass was to be retained the stiffness was to be maximized. The optimization was performed using an elastic material model in thecommercial software ANSYS. This elastic material models was based on standard material parameters of steel. Three geometries were generated, namely OG100, OG90 and OG80, which corresponded to 101 %, 87 % and 81 % of the mass of the original swing arm, respectively. The optimization procedurewas combined with geometry modications in SpaceClaim to simplify the obtained geometries. All these geometries consisted of a hollow geometry with a greater width compared to the original geometry. The geometries were then evaluated using multilinear plastic material models based on respective material. Using the additive manufactured material model no generated geometry could perform structurally better than the original swing arm. This indicates that greater material properties must be obtainedin order to be able to reduce the weight of the swing arm. By using the material properties of the highstructural steel, it was found that at least 31.3 kg per vehicle could be reduced by using the optimizedgeometry OG80, and still not perform structurally worse than of the original swing arm.<br>Utvecklingen inom additiv tillverkning har öppnat vägen för topologioptimering genom att kunna producera komplexa geometrier, som inte skulle vara möjliga att tillverka med hjälp av traditionella tillverkningsmetoder. Topologioptimering använder iterativa hållfasthetsberäkningar för att finna den optimala materialfördelning givet en maximal optimeringsdomän, lastfall och/eller andra strukturella kriterier. Relationen mellan bibehållen massa och strukturella prestationer hos en pendelarm till fordonet BvS10 har undersökts för två olika material. Det ena materialet var en uppskattning av ett additivt tillverkat material och det andra materialet var ett höghållfasthetsstål. Givet dem extrema lastfall, geometriska begränsningar hos pendelarmen och genom specficera hur mycket massa som skulle behållas så skulle styvheten maximeras. Optimeringarna utfördes med en elastisk materialmodell i den kommersiellamjukvaran ANSYS. Denna elastiska materialmodell var baserad på klassiska materialparametrarfor stål. Tre geometrier genererades. Optimeringsproceduren användes i kombination med geometriska modikationer i SpaceClaim för att förenkla de optimierade geometrierna. Dessa var OG100, OG90 och OG80, vilka motsvarade 101 %, 87 % och 81 % av pendelarmens originalvikt. Alla geometrier bestod av en ihålig geometri med större bredd än originalarmens. Geometrierna utvärderades sedan med hjälp av multilinjära plastiska materialmodeller baserat på respektive material. Ingen av dessa geometrier kunde prestera bättre än originalarmen när det additivt tillverkade materialet användes. Detta indikerar att bättre materialegenskaper måste uppnås för att kunna reducera vikten hos pendelarmen. Genom attanvända höghållfasthetsstålet upptäcktes att åtminstone 31.3 kg per fordon kunde reduceras genom attanvända OG80, och fortfarande inte prestera sämre än originalarmen.
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Yu, Jie. "Novel swing arm mechanism design for trailing edge flaps on commercial airliner." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/9586.

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This thesis will describe the works had been done by the author in the Flying Crane aircraft group design project and the new design of a novel swing arm mechanism which can be applied in the trailing edge high lift devices for this aircraft concept. Flying Crane aircraft is a new generation commercial airliner concept as the result of group design project conducted by China Aviation Industry Corporation I (AVIC I) and Cranfield University. At the end of the group design project, parameters such as take-off and landing distance, trailing edge flap type and deflection in take-off and landing configuration of the Flying Crane concept have been determined. These parameters are design input of the novel trailing edge high lift device mechanism for this aircraft concept. The idea of this innovative mechanism comes from the research achievement of a previous MSc student, Thomas Baxter, which applied swing arm mechanism into a passenger aircraft's leading edge slat. This thesis applied this idea to trailing edge flap and modeled the mechanism on CATIA software to yield a kinematic simulation for the purpose of check motion trail and force transfer in this mechanism. Relevant works such as actuation, mass and stress analysis are also involved. As the result of this research project, it was found that swing arm mechanism trends to require relatively small fairings for supports and attachments due to its high stowed space utilizing efficiency. Initial mass estimation carried out in this thesis also indicates that the new design takes advantage in terms of weight comparing with traditional trailing edge flap mechanisms. Thus. swing arm mechanism is supposed to show great competitive potential for commercial airliner's trailing edge flaps after further analysis has been done in the detail design phase.
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Siragy, Tarique. "The Role of Arm Swing on Dynamic Stability in People with Parkinson’s Disease." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41997.

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Introduction: Idiopathic Parkinson’s Disease is a multisystem neurodegenerative disease that is characterized by asymmetric impairment in regions of the midbrain, forebrain, and brainstem. Of the known neurodegenerative diseases, Parkinson’s is the second most commonly diagnosed worldwide with a global prevalence expected to reach 9 million individuals by 2030. As fall rates range between 35-68% annually, falling during walking is amongst the primary concerns for this demographic. Interestingly, despite the close association between loss of arm swing (due to Parkinson’s Disease) and future falls, evidence to-date has not examined the effect different arm swing conditions have on walking stability during unperturbed and perturbed (cognitive and mechanical) conditions. Dynamic stability research in this demographic is further limited in that evidence examining differences between the least and most affected leg is sparse. Research Objectives: To examine the differences between natural arm swing (unrestricted) and when arm swing was physical restricted (restricted) in people with Parkinson’s Disease. The effect of arm swing was assessed when people with Parkinson’s Disease walked in steady-state, dual-task, destabilizing terrains as well as in response to slips. Additionally, this thesis examined differences between the least and most affected sides, during the aforementioned conditions, that stem from the asymmetric progression in Parkinson’s Disease. Methods: Twenty individuals with Parkinson’s Disease were recruited for this research. Individuals walked on a CAREN-Extended System with unrestricted (natural) and restricted (absent) arm swing. Arm conditions were combined with steady-state walking, walking while performing a secondary dual-task, walking on minor destabilizing environments (hilly, rocky and mediolateral translational), and in response to slips for the heel-strikes of the perturbed (slipped) leg and recovery (contralateral) leg. The minor destabilizing terrains were assessed separately to steady-state walking for the arm swing condition resulting in three types of analyses (arms-rocky, arms-rolling hills, and arms-mediolateral). Data were processed in Vicon, Visual 3D, and OpenSim before being exported to Matlab to calculate dynamic stability (Margin of Stability, Harmonic Ratios and Coefficient of Variation), average spatiotemporal parameters, as well as trunk linear and angular velocities. Statistical analyses were conducted in SPSS with a significance level set a priori at (p<0.05). Results: During unperturbed walking with the restricted arm swing condition, compared to unrestricted, average trunk angular velocity increased in the transverse plane while instantaneous linear velocity at heel-strike decreased in the sagittal plane. Further, on the least affected leg, the Margin of Stability increased, average step length decreased, and coefficient of variation for step length increased. Contrastingly, step time coefficient of variation increased in the most affected leg. In the presence of the dual-task, average angular velocity in the frontal plane increased, average step time decreased (most affected leg), and step width coefficient of variation increased (bilaterally). Compared to unrestricted arm swing, restricted arm swing reduced average step length (arm-rolling hills) and time (arm-rocky), and increased COV step time (arm-rolling hills). The arm-rolling hills analysis revealed that the most affected leg had a shorter step length than the least affected. The destabilizing surface effects revealed that during the arm-rolling hills and arm-rocky analyses step time decreased, step width increased, and the COV for step time, length and width increased. No main effects occurred for the arm-mediolateral analysis. Additionally, when comparing the arm swing conditions in response to a slip, the restricted arm swing condition, compared to unrestricted, caused a faster step time during the slipped step. Compared to the most affected leg, the least affected had a wider step width during the slipped step. During the recovery step, the least affected leg had a larger anteroposterior Margin of Stability and longer step time than the most affected. Conclusion: The findings revealed that when people with Parkinson’s Disease walk without arm swing, trunk rotational velocity increases which internally perturbs gait. This destabilization elicited unique responses from dynamic stability metrics that were specific to the terrain encountered. Since Parkinson’s Disease primarily affects movement timing, the results suggest that loss of arm swing is particularly perturbing to foot placement timing while changes in spatial foot placement reflect compensation to maintain an existing level of global dynamic stability and symmetry. Additionally, the evidence indicates that the independent behavior of the least and most affected leg respond uniquely to loss of arm swing. However, as people with Parkinson’s Disease adjust the least affected leg’s foot placement to mirror the contralateral leg, functional interlimb differences may only be revealed when individuals encounter perturbations.
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Efstathiou, A. "Design considerations for a hybrid swing-arm profilometer to measure large aspheric optics." Thesis, University College London (University of London), 2007. http://discovery.ucl.ac.uk/1444702/.

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This thesis presents issues regarding the design and implementation of a profilometer based on the swivelling motion of a pivot arm. The main advantage of such a method, over conventional profiling techniques, is that it can be easily adapted to measure a range of optics including both spherics and aspherics, convex and concave as well as a variety of optic diameters and radii of curvature. The initiative for the development of the new aspheric metrology technique comes from the need for fabrication and measurement of hundreds of aspheric segments to enable the future Extremely Large Telescopes (ELTs). A detailed investigation of currently available aspheric metrology techniques concluded with the proposal of a novel SAP with a hybrid opto-mechanical sensor as a way to tackle issues of ELT segment metrology that remain in doubt. The successful submission of the proposal to the Department of Trade and Industry resulted in the allocation of funding for the development of a functional full scale prototype. Initially a basic error model was constructed in order to forecast the error of a generic SAP and to estimate allowed sub-component tolerances. Subsequently a first, scaled- down model of an SAP was used as a test platform which guided the construction of a full-scale prototype. The prototype is capable of measuring optics up to 1 m in diameter with a minimum radius of curvature of 1.75 m for concave and 1.25 m for convex surfaces. The SAP performance was evaluated through the measurement of a 680 mm diameter optic and measurements of surface profiles with accuracy better than 20 nm were realised. The thesis describes in detail the design process followed from the conceptual idea to the implementation and evaluation of the instrument.
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Kronlund, Jesper, and Matilda Palm. "Effekten av submaximala Benböj på Countermovement Jump with Arm Swing : Tvärsnittsstudie på aktiva bollidrottare." Thesis, Umeå universitet, Avdelningen för idrottsmedicin, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163320.

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Introduktion: Den vertikala hoppförmågan är viktigt för prestationen inom många idrotter. Att använda sig utav komplexträning som benböj och vertikala upphopp har i tidigare forskning visats ge signifikant förbättrad kraftutveckling. Post-Activation Potentiation (PAP) är ett fysiologiskt fenomen som ökar muskelspänningen och kraftutvecklingen i de arbetande musklerna, vilket kan implementeras under komplexträning. Syftet med studien var att undersöka om idrottare inom basket, fotboll, handboll och volleyboll får en gynnsam ökning på Countermovement jump with arm swing (CMJa) om de genomför benböj med en belastning på 50% och 80% av deras estimerade eller faktiskt uppmätta 1 repetition maximum (RM) innan test av CMJa. Metod: 9 män och 2 kvinnor, ålder 20.6±3.3, 181.4±7.4 cm, vikt, 76.9±12.6 kg, deltog där samtliga deltagare var aktiva inom någon av idrotterna basket, fotboll och handboll. Testdeltagarna utförde två set tunga benböj följt av fem set CMJa på en infraröd sensor. Resultat: Resultatet visade ingen signifikant förbättring över tid i hopphöjd hos aktiva bollidrottare (p=0.98). Slutsats: Resultatet tyder på att användandet av PAP med tunga benböj inte leda till förbättrad prestation på hopphöjden vid genomförande av CMJa hos bollidrottare. Resultatet i den här studien stödjer inte tidigare forskningsresultat om att det finns en positiv skillnad på hopphöjd efter tunga benböj över tid.<br>Introduction: The vertical jump ability is essential for performance in many sports. The use of complex training has in previous research been shown to provide significantly improved power development. Post-Activation Potentiation (PAP) is a physical phenomenon that increases muscle tension and the force development of the working muscles which can be implemented in complex training. The purpose of this study was to investigate whether athletes in basketball, football, handball and volleyball will have a favorable increase in Countermovement jump with arm swing (CMJa) if they perform heavier squats with a load of 50% and 80% of their estimated or measured 1 repeat maximum (RM) before CMJa. Method: 9 men and 2 women, age 20.6±3.3 years, height 181.4±7.4 cm, 76.9±12.6 kg body mass participated in the study. All participants were active in one of the sports basket, football, handball or volleyball. The participants performed two set of squats followed by five set of two repetition CMJas with a five minutes rest in between. An infrared sensor MuscleLab was used to analyze the jump height. Results: The result showed no significant difference between heavy squats and jump height in CMJa over time (p=0.98). Conclusion: Squats with 50% and 80% of 1RM do not seem to improve jump height performance in CMJ on team sports players. The result in this study does not support the results in previous studies showing a positive effect of heavy squats on maximal jump height.
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Mezher, Cézar. "The Effect of Arm Swing and Rocky Surface on Dynamic Stability In Healthy Young Adults." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40939.

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There are millions of fall-related injuries worldwide requiring medical attention on a yearly basis. These falls place a financial burden on the healthcare system. These falls can occur in the event of disruption in the postural control system and/or a loss of balance while walking. Previously, most gait studies have focused on the assessment of the lower extremities while neglecting the contribution of arm swing as it was believed to be a passive motion. However, it has been shown that there is an active component to arm swing. Moreover, these arm movements have been shown to affect the motion of the center of mass when walking. Therefore, arm swing could mitigate the destabilizing effects of perturbations caused by challenging surfaces. Additionally, no studies have examined the effect of arm swing when walking on a rocky surface. This type of surface causes perturbations in the anteroposterior and mediolateral directions simultaneously, leading to uneven center of mass displacement and spatiotemporal modifications. Hence, the present study assessed the effect of normal arm swing, held arm swing and active arm swing on postural control and dynamic stability when walking on regular and rocky surface. We hypothesized that active arm swing will have a negative impact on postural control and gait dynamics on a regular surface, while rocky surface walking will decrease stability and increase spatiotemporal variability. Additionally, we expect active arm swing to attenuate the negative effects of the rocky surface. Fifteen healthy young adults from the University of Ottawa community (mean age 23.4 ± 2.8 years) were recruited to participate in this study. They were asked to walk using three different arm conditions (normal, held and active arm swing) on the dual-belt CAREN-Extended System (Motek Medical, Amsterdam, NL) on simulated regular and rocky surface. This last is generated using the “Rumble” module (maximum range of ±2 cm at 0.6 Hz vertically, ±1° at 1 Hz pitch, and ±1° at 1.2 Hz roll). Mean, standard deviation and maximal values of trunk linear and angular velocity were calculated in all three planes. Moreover, step length, time and width mean and coefficient of variation as well as margin of stability mean and standard deviation were calculated. A mixed linear model was performed to compare the effects of the arm swing motions and surface types. The arm and surface conditions were set as fixed effects, while the walking speed was set as a covariate. Active arm swing increased trunk linear and angular velocity variability and peak values compared to normal and held arm conditions. Active arm swing also increased participants’ step length and step time, as well as the variability of margin of stability. Similarly, rocky surface walking increased trunk kinematics variability and peak values compared to regular surface walking. Furthermore, rocky surface increased the average step width while reducing the average step time. The spatiotemporal adaptations show the use of “cautious” gait to mitigate the destabilizing effects of both the active arm swing and rocky surface walking and, ultimately, maintain stability.
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Plawinski, Marek Pawel. "An analysis of the different spike attack arm swings used in elite levels of men's volleyball." Thesis, Kingston, Ont. : [s.n.], 2008. http://hdl.handle.net/1974/1325.

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Thompson, Elizabeth Diane. "Improving Walking in Individuals with Parkinson's Disease Through Wearable Technology." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/597154.

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Kinesiology<br>Ph.D.<br>Movement problems related to Parkinson’s disease (PD) have been shown to have a profound effect on functional independence and reported quality of life. Within the constellation of movement signs of PD (tremor, muscle rigidity, bradykinesia/hypokinesia, and postural instability), impaired arm swing is often the earliest-recognized symptom. It is also a strong independent predictor of greater fall risk and morbidity/mortality risk. Early treatment for movement problems such as impaired arm swing is associated with the greatest improvement in these impairments. However, movement problems often coincide with impaired processing of sensory information, leaving many people with PD with inadequate awareness of their posture and limb position. Thus, PD-related gait deficits are difficult for people to correct by themselves. External cueing techniques (such as visual cues in the environment or auditory cues for pacing and rhythm) have shown promise in improving parameters such as gait speed, s<br>Temple University--Theses
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Neves, Taubi J. "A Comparison of the Traditional, Swing, and Chicken Wing Arm Movements on Volleyball Blocking in NCAA Division 1 Female Athletes." Diss., CLICK HERE for online access, 2010. http://contentdm.lib.byu.edu/ETD/image/etd3401.pdf.

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Books on the topic "Swing Arm"

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L, Heard Walter, Jensen J. Kermit, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., eds. Swing-Arm Beam Erector (SABER) concept for single astronaut assembly of space structure. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1985.

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Whitehead, Kevin. New Dutch swing. Billboard Books, 1999.

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Duncan, Marijane Dill. My mother's arm swings the broom with mine. Driftwood Press, 1994.

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Jovanovics, Tamás. Tamás Jovanovics: Swing out : selected works 2006-2014. Edited by Fitz Péter editor and Kiscelli Múzeum. BTM, 2014.

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Rockwood, Leigh. Pigs are smart! PowerKids Press, 2010.

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Paolo, Scarpi, ed. Tra maghe, santi e maiali: L'avventura del porco nelle lettere e nei colori. C. Gallone, 1998.

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Little, Jean. All pigs are beautiful. 2nd ed. Candlewick Press, 2001.

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Little, Jean. All pigs are beautiful. Candlewick Press, 1995.

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Gorbachev, Valeri. That's what friends are for. Philomel Books, 2005.

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Hammond, D. A. Pigs ina poke, collection #2. Beech River Books, 2010.

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Book chapters on the topic "Swing Arm"

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Vaca, Xavier, Junior Quintero, and William Quitiaquez. "Topological Optimization of Swing Arm for Electric Motorcycles." In Systems, Smart Technologies and Innovation for Society. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-51982-6_3.

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Miyahara, Hirokazu, Yasutoshi Makino, and Hiroyuki Shinoda. "Inducing Wrist Twist During Arm Swing by Using Gyro Effect." In Lecture Notes in Electrical Engineering. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4157-0_36.

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Zhang, Jianhua, Mengjuan Li, and ChunLin Li. "Static and Dynamic Error Analysis of Swing Arm Profile Measurement." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4098-1_32.

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Wang, Song, Yun Hong, Fanxuan Li, and Duanling Li. "Kinematic Analysis of Overrunning on a Swing Arm Tracked Mobile Chassis." In Intelligent Robotics and Applications. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6504-5_5.

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Swamy, K., A. Suresh, S. Ravi, K. Niranjan, R. Srivardhan, and S. M. Nishanth. "Design and Analysis of a Rugged Swing-Arm for Electric Two-Wheelers." In Advances in Additive Manufacturing Technologies. CRC Press, 2024. http://dx.doi.org/10.1201/9781003545774-26.

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Cui, Yaoyu, Xin Yan, Shenshen Li, and Jianhua Li. "Research on Topological Optimization Technology of Swing Arm of Cab Suspension Stabilizer bar." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1365-7_62.

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Yazdi, Ebrahim, Vahid Azizi, and Abolfazle T. Haghighat. "Biped Locomotion with Arm Swing, Based on Truncated Fourier Series and Bees Algorithm Optimizer." In Intelligent Automation and Systems Engineering. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0373-9_2.

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Zhang, Pu, Bo Cheng, Xingke Xia, and Jian Sun. "Multi-objective Optimization Design of the Structural Parameters of Swing Arm Crawler Rescue Robot." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6847-3_75.

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Yadav, Jitendra, Praveen Pitta, and Akshay Maan. "Swing Tower of Loader Backhoe Arm for Dynamics and Stress Analysis by Modeling and Simulation." In Advances in Fire and Process Safety. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7281-9_18.

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Park, Chang-Soo, and Jong-Hwan Kim. "Stable Modifiable Walking Pattern Generator with Arm Swing Motion Using Evolutionary Optimized Central Pattern Generator." In Robot Intelligence Technology and Applications 2. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05582-4_35.

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Conference papers on the topic "Swing Arm"

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Polvorinos-Fernández, Carlos, Luis Sigcha, María Centeno-Cerrato, et al. "Detection of Arm Swing Limitations in Simulated Parkinson’s Disease Gait Conditions: A Pilot Study." In Special Session on Wearable HealthCare. SCITEPRESS - Science and Technology Publications, 2025. https://doi.org/10.5220/0013231600003911.

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Fang, Juan, Michael Haldimann, and Robert Riener. "Development of an End-Effector-Based System for Arm Support and Swing During Rehabilitation of Walking." In 2025 International Conference On Rehabilitation Robotics (ICORR). IEEE, 2025. https://doi.org/10.1109/icorr66766.2025.11062946.

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Jenz, Michael, Allan Garcia-Casal, Yael Ben Shalom, Matthew L. Elwin, and Matthew J. Major. "Design and Control of an Actuated Prosthetic Elbow to Restore Arm Swing for Persons with Upper Limb Absence." In 2025 International Conference On Rehabilitation Robotics (ICORR). IEEE, 2025. https://doi.org/10.1109/icorr66766.2025.11063135.

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Anderson, David S., and James H. Burge. "Swing-arm profilometry of aspherics." In SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, edited by Victor J. Doherty and H. Philip Stahl. SPIE, 1995. http://dx.doi.org/10.1117/12.218421.

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Su, Peng, Chang Jin Oh, Robert E. Parks, and James H. Burge. "Swing arm optical CMM for aspherics." In SPIE Optical Engineering + Applications, edited by James H. Burge, Oliver W. Fähnle, and Ray Williamson. SPIE, 2009. http://dx.doi.org/10.1117/12.828493.

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Iwasaki, Hayato, Akiyoshi Mizuta, Takeshi Hasegawa, and Hideto Yoshitake. "Development of a Magnesium Swing Arm for Motorcycles." In Small Engine Technology Conference & Exposition. SAE International, 2004. http://dx.doi.org/10.4271/2004-32-0048.

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Yak, Aik Seng, Tohsiew Low, and Siak-Piang Lim. "High-speed swing arm three-beam optical head." In Singapore, edited by Soo-Jin Chua and John C. McCallum. SPIE, 1991. http://dx.doi.org/10.1117/12.26124.

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Sato, Shunzi, Yoshihiko Sunayama, and Yoshisada Sakamoto. "Radiation Noise Analysis for Electric Scooter Swing-arm." In Small Engine Technology Conference & Exposition. Society of Automotive Engineers of Japan, 2011. http://dx.doi.org/10.4271/2011-32-0650.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Traditionally, a Boundary Element Method (BEM) is often used for a radiation noise analysis. In recent years, to define an infinite region, a Finite Element Method (FEM) that can use an infinite boundary condition has been developed. However, studies on the radiation noise analysis by the FEM are few.&lt;/div&gt;&lt;div class="htmlview paragraph"&gt;Recently a number of an electric scooter has been increased. One of development issues is a radiation noise by a vibration of a wall surface of a swing-arm. In this paper, the vibration of the wall surface of the swing-arm is calculated, and a sound pressure level (SPL) of the radiation noise is calculated using a result of the frequency response analysis. And compare results of an experimental and an analytical sound pressure, its results were matched to within 5% error. Furthermore we used the method of this paper, proposed the model to reduce the radiation noise 10dB. Then we compare with the FEM and the BEM to verify the computation time and the mesh size.&lt;/div&gt;&lt;/div&gt;
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Mitchell, Jefferey, Wayne M. Johnson, Bryan Riemann, Kellen Krajewski, and Cameron W. Coates. "Biomechanical Loading of the American Kettlebell Swing." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52072.

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The American kettlebell swing is a variation of the Russian kettlebell swing where the kettlebell is swept in an arc from between the legs to an overhead position with straightened arms. Previous studies involving the kettlebell swing have examined the aerobic and cardiovascular impact of the swing, the variation of mechanical impulse and power generation with kettlebell weight, and compared its efficacy to other types of exercises. However, there have been limited studies examining the dynamic biomechanical loads of the swing on the arm and shoulder. The aim of this study was to establish the mechanical demands of the American kettlebell swing exercise on the arms and shoulders to determine the regions of highest force output and the variation of the forces throughout the swing, all based on percentage of the swing completed. In order to obtain kinematic data, two female subjects with prior kettlebell exercise experience performed one set of fifteen American swings with 8kg and 12kg kettlebells. Position and orientation data was recorded during trials for the kettlebell, joints, and centers of mass of arm segments. Velocity and acceleration data was found using finite-difference approximations. An inverse dynamics method applied to (2-D) planar motion using Newton-Euler equations was used to determine the forces and moments at various joints along the entire arm including the wrist, elbow, and shoulder joints. Data was time normalized as percent of swing, where 0% and 100% indicated the beginning and end of the swing respectively, and approximately 50% denoted the transition between upswing and downswing halves. Results revealed that the arm was under tension during 0% to 35% and 67% to 100% of the swing, indicating the upper torso works to provide the normal force to support the curved motion of the kettlebell. During 36% to 66% of the swing the arm muscles worked in order to support the weight of the kettlebell over the head. While the lower extremity mechanical demands associated with kettlebell swings have been studied, the current results help clarify the upper extremity mechanical demands associated with kettlebell swing exercise. The results of this analysis will better help practitioners to understand the prerequisite upper extremity function needed to perform the full American style swing. The American kettlebell swing carries risks its Russian equivalent does not have, typically breaking form to make the shoulder extension involved with raising the kettlebell above the subjects head. These results suggest that the extra range of motion in the American kettlebell swing prompts different mechanical demands which, in turn, targets different muscle groups from the lower half of the American swing or the Russian kettlebell swing. Finally, because increasing mechanical stimuli is an important component to exercise progression, this analysis fills the void of understanding the effects of changing kettlebell loads on the upper extremity demands. Future research will consider the symmetry of the upper extremity mechanical patterns revealed by this analysis.
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Chen, Lin, Hongwei Jing, Zhongwei Wei, Jie Li, and Xuedong Cao. "Research on the measurement technology of effective arm length of swing arm profilometer." In 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), edited by Wenhan Jiang, Myung K. Cho, and Fan Wu. SPIE, 2014. http://dx.doi.org/10.1117/12.2070673.

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Reports on the topic "Swing Arm"

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Beane, Nathan, Nicole Didero, Sophie McKee, et al. Framework development for rapid assessment and economic valuation of feral swine damage to wetland terrain : a pilot study at US Army Corps of Engineers–Somerville Lake, Texas. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48132.

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The increased spread and presence of feral swine on sensitive natural resources landscapes like wetlands has become a considerable concern on lands managed by the US Army Corps of Engineers. In August 2021 a pilot study was carried out at Somerville Lake, Texas, as the first step in a three-year research plan to develop an ecological-economic framework for feral swine damage assessments (FSDA) and valuation. The study sought to quantify and value soil disturbance caused by feral swine trampling, rooting, and wallowing on wetland soils. The primary objective—to develop and test a rapid FSDA prototype—was achieved and represents an important first step to creating a quick and user-friendly damage-assessment framework that also estimates the economic value of the damage observed. With continued testing and development, this rapid FSDA protocol will be of use to all who manage feral swine impacts on landscapes with wetland ecosystems, and findings from this information will be of use for scientifically informed cost-benefit analysis and management decision-making.
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Engel, Charles, and James Hamilton. Long Swings in the Exchange Rate: Are they in the Data and Do Markets Know It? National Bureau of Economic Research, 1989. http://dx.doi.org/10.3386/w3165.

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Grubman, Marvin J., Yehuda Stram, Peter W. Mason, and Hagai Yadin. Development of an Empty Viral Capsid Vaccine against Foot and Mouth Disease. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7570568.bard.

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Foot-and-mouth disease (FMD), a highly infectious viral disease of cloven-hoofed animals, is economically the most important disease of domestic animals. Although inactivated FMD vaccines have been succesfully used as part of comprehensive eradication programs in Western Europe, there are a number of concerns about their safety. In this proposal, we have attempted to develop a new generation of FMD vaccines that addresses these concerns. Specifically we have cloned the region of the viral genome coding for the structural proteins and the proteinase responsible for processing of the structural protein precursor into both a DNA vector and a replication-deficient human adenovirus. We have demonstrated the induction of an FMDV-specific immune response and a neutralizing antibody response with the DNA vectors in mice, but preliminary potency and efficacy studies in swine are variable. However, the adenovirus vector induces a significant and long-lived neutralizing antibody response in mice and most importantly a neutralizing and protective response in swine. These results suggest that the empty capsid approach is a potential alternative to the current vaccination strategy.
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Garlick, Jeremy, and Anja Senz. Choosing to lose: how US and EU policy decisions contribute to greater Chinese influence in the Global South. EuroHub4Sino, 2025. https://doi.org/10.31175/eh4s.0d53.

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Key takeaways: - Over the last ten years the USA and the EU have not been paying sufficient attention to rising Chinese influence in the Global South. - Studying public opinion survey data reveals that there has been a swing towards China and away from the USA across parts of Africa, the Middle East, and Asia. - This shift comes not from any shift in Chinese policy, but from what the West is – and is not – doing, most notably in connection with the conflicts in Gaza and Ukraine. - Since Trump was inaugurated for the second time in January 2025, decisions to cut aid to the Global South, introduce tariffs, and walk away from global climate action are leaving even more of a vacuum for China to fill. - In the context of rising Chinese and falling US engagement, Europe urgently needs to develop a clearer strategy in its relations with the developing world, focussing on smaller states as well as big players like India and Brazil.
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Hausmann, Ricardo, Michael Gavin, Ernesto H. Stein, and Carmen Pagés. Financial Turmoil and the Choice of Exchange Rate Regime. Inter-American Development Bank, 1999. http://dx.doi.org/10.18235/0010731.

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Financial turmoil is becoming a fact of life in Latin America. The 1990s have been characterized by enormous volatility in the magnitude and cost of capital flows. The correlation of capital swings across disparate countries suggests that the quality of emerging market policies in addition to global factors have been the main actors in this drama. Therefore, the blame for financial turmoil has moved away from inappropriate domestic policies. Instead, the paradigm has shifted to one of determining which policies - domestic or international - are most effective in taming the destabilizing effects of inherently volatile capital flows.
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Anderson, Lowell A., Neal Black, Thomas J. Hagerty, John P. Kluge, and Paul L. Sundberg. Pseudorabies (Aujeszky’s Disease) and Its Eradication: A Review of the U.S. Experience. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, 2008. http://dx.doi.org/10.32747/2008.7207242.aphis.

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This report has been written to serve as a history of the U.S. Aujeszky’s Disease (Pseudorabies) Eradication Program and as a guide when future disease eradication programs are considered. The report provides an overview of the program and its history and is generally nontechnical, with specific sections written by subject matter experts. The information was compiled during 2007, three years after the last four States qualified for Stage V (Free) Status. This eradication effort was formally initiated in 1989. The contents of this report include a variety of information that represents the viewpoints of individuals participating in the eradication effort. To introduce the challenge of pseudorabies (PRV), the report covers characteristics of the virus and the history of the disease in the United States, followed by the emergence of virulent strains in the 1970s that coincided with management changes in the swine industry. The report also discusses early attempts at PRV control, vaccines, and diagnostic tools, and then reviews various pilot projects, individual State experiences, and national debate on the pros and cons of eradication versus control. In addition, the report offers details on the evolution and acceptance of a national eradication program, including debate among industry and State/Federal officials, funding, testing protocols, cleanup plans, and the development of gene-deleted vaccines and their complementary tests. The ongoing threat of reintroduction from feral swine and emergency response plans are also included. Lastly, the technical coordinators have included a chapter on lessons learned from our various viewpoints on the eradication effort.
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Fostik, Anna. Do Adults in Couples Have Better Mental Health During the COVID‑19 Pandemic? The Vanier Institute of the Family, 2020. https://doi.org/10.61959/bbdw8276e.

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Nearly half of adults aged 18 years or older in Canada report feeling anxious/nervous (47%) or sad (45%) “very often” or “often” since the beginning of the COVID-19 crisis, according to survey data from the Vanier Institute of the Family, the Association for Canadian Studies and Leger, which was collected from April 9 to 12, 20201 (fig. 1). Four in 10 report feeling irritable (39%) and about one-third report experiencing sleep-related problems (35%) and mood swings (32%) “very often” or “often” since the start of the crisis (fig. 1). But are adults currently in a couple – whether common-law or married – as likely as those who are single or separated, divorced or widowed to experience feelings of unsettledness?
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Fry, Emily, James Smith, and Gregory Thwaites. Trump tariff turmoil: The impact of higher US tariffs and the risk of a global recession. The Resolution Foundation, 2025. https://doi.org/10.63492/urwi832.

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President Trump’s tariff announcements have taken a wrecking ball to the global system of international trade, pushing US tariff rates back to early 20th century levels. Following the suspension of ‘reciprocal’ tariffs, the UK’s exposure to automotive and possible “major” pharmaceutical tariffs, means we are set to be affected by more than many other countries, with the notable exception of China. But as well as the direct impacts of the tariffs, President Trump’s approach to policy making has led to huge uncertainty about the ‘new normal’ for tariffs. This uncertainty has triggered wild swings in financial markets and could lead to a global recession, affecting the UK economy through lower confidence and tighter financial conditions, exacerbating the trade impact.
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Kanner, Joseph, Dennis Miller, Ido Bartov, John Kinsella, and Stella Harel. The Effect of Dietary Iron Level on Lipid Peroxidation of Muscle Food. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7604282.bard.

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Biological oxidations are almost exclusively metal ion-promoted reactions and in ths respect iron, being the most abundant, is the commonly involved. The effect of dietary iron levels on pork, turkey and chick muscle lipid peroxidation and various other related compounds were evaluated. Crossbred feeder pigs were fed to market weight on corn-soy rations containing either 62, 131 or 209 ppm iron. After slaughter, the muscles were dissected, cooked and stored at 4°C. Heavily fortifying swine rations with iron (&gt;200 ppm) increase nn-heme iron (NHI), thiobarbituric acid reactive substances (TBARS), and decrease a-tocopherol in cooked stored pork but did not increase warmed-over aroma (WOA). NHI and TBARS were higher in cooked pork from pigs fed high-iron diets. Liver iron correlated with muscle iron. TBARS were strongly related with WOA. The role of dietary vitamin E and ascorbic acid on Fe-induced in vivo lipid peroxidation in swine was also evaluated. Moderate elevation in iron stores had a marked effect on oxidative stress, especially as indicated by liver TBARS. Supplemental vitamin E, and to a lesser extent vitamin C, protect against this oxidative stress. Unsupplementation of Fe in the regular diet of turkeys did not affect body weight, blood hemoglobin level, or iron pool in the liver or muscle. The reason being that it contained "natural" ~120 mg Fe/kg feed, and this amount is high enough to keep constant the pool of iron in the body, liver or muscle tissues. Only Fe-supplementation with high amounts of Fe (500 ppm) significantly increased turkey blood hemoglobin and total iron in the liver, in 1 out of 3 experiments, but only slightly affects iron pool in the muscles. It seems that the liver accumulates very high concentations of iron and significantly regulates iron concentration in skeletal muscles. For this reason, it was very difficult to decrease muscle stability in turkeys through a diet containing high levels of Fe-supplementation. It was shown that the significant increase in the amount of iron (total and "free") in the muscle by injections with Fe-dextran accelerated its lipid peroxidation rate and decreased its a-tocopherol concentration. The level and metabolism of iron in the muscles affects the intensity of in vivo lipid peroxidation. This process was found to ifluence the turnover and accumulation of a-tocopherol in turkey and chick muscles. Treatments which could significantly decrease the amount and metabolism of iron pool in muscle tissues (or other organs) may affect the rate of lipid peroxidation and the turnover of a-tocopherol. Several defense enzymes were determined and found in the turkey muscle, such as superoxide dismutase, catalase, and glutathione peroxidase. Glutathione peroxidase was more active in muscles with a high trend of lipid peroxidation, lmore so in drumsticks than in breast muscles, or muscles with a low a-tocopherol content. The activity of glutathione peroxidase increased several fold in muscle stored at 4°C. Our work demonstrated that it will be much more practical to increase the stability of muscle tissues in swine, turkeys and chickens during storage and processing by increasing the amount of vitamin E in the diet than by withdrawing iron supplementation.
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10

De Brun, Julio. Growth in Uruguay: Factor Accumulation or Productivity Gains? Inter-American Development Bank, 2004. http://dx.doi.org/10.18235/0008730.

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This paper is part of the project "Explaining Economic Growth Performance" launched by the Global Development Network (GDN). The purpose of this project is to explain economic growth performances across seven regions. During the last five decades the Uruguayan economy faced volatile macroeconomic conditions. Economic policies swung from highly controlled capital flows, exchange rates, and interest rates to the introduction of significant financial liberalization. This study will show that the upturn in economic growth since liberalization is due to improved resource allocation that, in turn, promoted an increase in human capital accumulation. No significant changes are observed in the pattern of physical capital accumulation or the evolution of Total Factor Productivity (TFP). The analysis begins with an overview of recent economic policy in Uruguay, summarizing the characteristics of each period. A growth accounting exercise is then conducted to begin weighing which factors are crucial to understanding the country's pattern of growth. This exercise will show, as previously stated, that TFP played a minimal role. This evidence is complemented by analysis of a time series of key variables, which permits us to address the empirical regularities that must be explained to understand economic growth in Uruguay.
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