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Journal articles on the topic 'Dynamic movements'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Grinyagin, I. V., E. V. Biryukova, and M. A. Maier. "Kinematic and Dynamic Synergies of Human Precision-Grip Movements." Journal of Neurophysiology 94, no. 4 (2005): 2284–94. http://dx.doi.org/10.1152/jn.01310.2004.

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We analyzed the adaptability of human thumb and index finger movement kinematics and dynamics to variations of precision grip aperture and movement velocity. Six subjects performed precision grip opening and closing movements under different conditions of movement velocity and movement aperture (thumb and index finger tip-to-tip distance). Angular motion of the thumb and index finger joints was recorded with a CyberGlove and a three-dimensional biomechanical model was used for solving the inverse dynamics problem during precision grip movements, i.e., for calculating joint torques from experim

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Wang, Xiaoye Michael, Zhichen Feng, Mingming Yang, Jing Samantha Pan, Margaret A. Wilson, and Qin Zhu. "Experience modulates gaze behavior and the effectiveness of information pickup to overcome the inversion effect in biological motion perception." PLOS ONE 20, no. 1 (2025): e0317290. https://doi.org/10.1371/journal.pone.0317290.

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The inversion effect in biological motion suggests that presenting a point-light display (PLD) in an inverted orientation impairs the observer’s ability to perceive the movement, likely due to the observer’s unfamiliarity with the dynamic characteristics of inverted motion. Vertical dancers (VDs), accustomed to performing and perceiving others to perform dance movements in an inverted orientation while being suspended in the air, offer a unique perspective on this phenomenon. A previous study showed that VDs were more sensitive to the artificial inversion of PLDs depicting dance movements when

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Cao, Weiping, and Satha Phongsatha. "Application of Video Reflection Technology in Sports Dance Teaching." International Journal of Sociologies and Anthropologies Science Reviews 3, no. 5 (2023): 335–52. http://dx.doi.org/10.60027/ijsasr.2023.3367.

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Background and Aim: As a new teaching method, the video reflection teaching method has been widely used in sports teaching activities. This study plans to apply the video reflection teaching method to the teaching of sports dance, based on the TAM technology acceptance model, and through literature. Materials and Methods: In this paper, a quasi-experimental research method is adopted, which is divided into experimental class and control class to test the technical quality of sports dance (TQ) before and after, and a questionnaire is used to investigate the students' perception of using technol

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Nepal, Padam. "How Movements Move? Evaluating the Role of Ideology and Leadership in Environmental Movement Dynamics in India with Special Reference to the Narmada Bachao Andolan." Hydro Nepal: Journal of Water, Energy and Environment 4 (May 24, 2009): 24–29. http://dx.doi.org/10.3126/hn.v4i0.1821.

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Lawrence Cox (1999) has argued that the established perspectives on social movements operate with an inadequately narrow conception of the ‘object’ that is being studied and thus tends to ‘reify’ “movements” as usual activity against essentially static backgrounds, and in its place, he advocates a concept of social movement as the more or less developed articulation of situated rationalities. Following Cox, therefore, the present study perceives social movements as articulations of situated rationalities by perceiving them as a tactical, dialectical response to the harsh realities of the polit

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Aldabergenova, A. T., and Z. D. Moldagazhieva. "The research of the classification of ergonomic parameters and movements of a woman's raincoat in dynamics." Journal of Almaty Technological University, no. 1 (April 2, 2023): 167–73. http://dx.doi.org/10.48184/2304-568x-2023-1-167-173.

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Today, there is a very high demand for women's raincoats in the market of Kazakhstan. One of the important requirements for raincoats are ergonomic requirements. Currently, the lack of clear literature systematized recommendations for the study of ergonomic requirements of raincoats is the main and relevant for solving in full in this ergonomic study of the raincoat. The article considers the study of classifications of ergonomic requirements and movements of a woman's raincoat in dynamics. In the course of the study, a marketing analysis was conducted, that is, a survey. The differentiation o

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Vernon, Matthew C., and Matt J. Keeling. "Representing the UK's cattle herd as static and dynamic networks." Proceedings of the Royal Society B: Biological Sciences 276, no. 1656 (2008): 469–76. http://dx.doi.org/10.1098/rspb.2008.1009.

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Network models are increasingly being used to understand the spread of diseases through sparsely connected populations, with particular interest in the impact of animal movements upon the dynamics of infectious diseases. Detailed data collected by the UK government on the movement of cattle may be represented as a network, where animal holdings are nodes, and an edge is drawn between nodes where a movement of animals has occurred. These network representations may vary from a simple static representation, to a more complex, fully dynamic one where daily movements are explicitly captured. Using

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Alvarez, Tara L., John L. Semmlow, and Weihong Yuan. "Closely Spaced, Fast Dynamic Movements in Disparity Vergence." Journal of Neurophysiology 79, no. 1 (1998): 37–44. http://dx.doi.org/10.1152/jn.1998.79.1.37.

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Alvarez, Tara L., John L. Semmlow, and Weihong Yuan. Closely spaced, fast dynamic movements in disparity vergence. J. Neurophysiol. 79: 37–44, 1998. Conflicting theories exist describing how symmetrical vergence responses, the inward or outward turning of the eyes, are mediated. Classical theories describe vergence control as mediated by visual feedback. Extensive experimental evidence indicates that two distinct control components comprise the vergence response, and a recent theory supports the concept that one of these components is not visually guided. Occasionally, saccadic eye movements w

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Effendi, Yusuf, Yosi Kristian, Lukman Zaman P.C.S.W, and Hariadi Yutanto. "Pemanfaatan Mediapipe Body Pose Estimation dan Dynamic Time Warping untuk Pembelajaran Tari Remo." Jurnal Teknologi dan Manajemen Informatika 9, no. 2 (2023): 183–90. http://dx.doi.org/10.26905/jtmi.v9i2.10408.

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Video can be used as a learning medium for various purposes. In this research, the object of study is the movements of the traditional dance "remo." Thus, as a substitute for an absent coach or instructor, videos can take on the role of a dance instructor. However, video communication is one-way between the coach and the learners. Without movement correction, individuals trying to learn remo dance may find it challenging to determine if they are performing the movements correctly. Therefore, the author aims to create a system to assist coaches in correcting the dance movements of their learner

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Padoa-Schioppa, Camillo, Chiang-Shan Ray Li, and Emilio Bizzi. "Neuronal Activity in the Supplementary Motor Area of Monkeys Adapting to a New Dynamic Environment." Journal of Neurophysiology 91, no. 1 (2004): 449–73. http://dx.doi.org/10.1152/jn.00876.2002.

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To execute visually guided reaching movements, the central nervous system (CNS) must transform a desired hand trajectory (kinematics) into appropriate muscle-related commands (dynamics). It has been suggested that the CNS might face this challenging computation by using internal forward models for the dynamics. Previous work in humans found that new internal models can be acquired through experience. In a series of studies in monkeys, we investigated how neurons in the motor areas of the frontal lobe reflect the movement dynamics and how their activity changes when monkeys learn a new internal

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Gottlieb, Gerald L., Qilai Song, Gil L. Almeida, Di-An Hong, and Daniel Corcos. "Directional Control of Planar Human Arm Movement." Journal of Neurophysiology 78, no. 6 (1997): 2985–98. http://dx.doi.org/10.1152/jn.1997.78.6.2985.

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Gottlieb, Gerald L., Qilai Song, Gil L. Almeida, Di-an Hong, and Daniel Corcos. Directional control of planar human arm movement. J. Neurophysiol. 78: 2985–2998, 1997. We examined the patterns of joint kinematics and torques in two kinds of sagittal plane reaching movements. One consisted of movements from a fixed initial position with the arm partially outstretched, to different targets, equidistant from the initial position and located according to the hours of a clock. The other series added movements from different initial positions and directions and >40–80 cm distances. Dynamic muscle

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Alves, N. K. C., N. Roitman, and C. Magluta. "Dynamic response under human movements." Materials and Structures 32, no. 1 (1999): 31–37. http://dx.doi.org/10.1007/bf02480409.

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PETROV, L. M., I. V. KISHIANUS, S. V. VERPIVSKYI, O. A. MALINOVSKYI, V. A. NIKISHYN, and S. V. SHELUHIN. "ELEMENTS OF THE THEORY OF DYNAMIC DEVELOPED SUSPENSION MILITARY VEHICLE." Вісник Херсонського національного технічного університету, no. 2(89) (July 1, 2024): 50–56. http://dx.doi.org/10.35546/kntu2078-4481.2024.2.7.

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The wheel drives of a military vehicle are intended for its movement to satisfy the performance of technological tasks in the zone close to combat, but this requirement is not fully satisfied. This is related to the performance of the above tasks in difficult conditions, in off-road conditions. In order to ensure the mandatory performance and reliability of technological movements in such conditions, construction specialists focused their actions on improving the running gear, especially the suspensions. The article deals with the theoretical research of the design of the developed suspension

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Toledo, Karel, Hector Kaschel, and Mauricio Rodriguez. "Probabilistic Risk Assessment for Data Rate Maximization in Unmanned Aerial Vehicle-Assisted Wireless Networks." Drones 8, no. 10 (2024): 592. http://dx.doi.org/10.3390/drones8100592.

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The evolution of beyond fifth generation (B5G) wireless networks poses significant technical and economic challenges across urban, suburban, and rural areas, demanding increased capacity for users whose positions continually change. This study investigated the dynamic positioning of an unmanned aerial vehicle (UAV), acting as a mobile base station (MoBS) to enhance network efficiency and meet ground terminals (GTs) expectations for data rates, particularly in emergency scenarios or temporary events. While UAVs show great promise, existing research often assumes certainty in network architectur

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Zakovorotny, Vilor, and Valery Gvindjiliya. "Synergies in control of the cutting processes." MATEC Web of Conferences 226 (2018): 02009. http://dx.doi.org/10.1051/matecconf/201822602009.

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As the rule metal-cutting machine have controllable movements of the executive tool from the computer. However, the shape-generating movements differ from the executive elements movements. These differences are defined by the influence of the deformation of the tool and detail. The deformations are conditioned by complex nonlinear transformation in all system. In turn, the process dynamic system is determined on the basis of the disclosure of the dynamic subsystem interaction. While the dynamic link parameters depend on the trajectories of the executive elements movement. Therefore, it is nece

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Pesterev, M. "JUSTIFICATION OF SUFFICIENT DEGREES OF FREEDOM OF DYNAMIC PLATFORM OF THE EXERCISE MACHINE OF COMBAT TRACK MACHINES." Collection of scientific works of Odesa Military Academy 1, no. 13 (2020): 69–75. http://dx.doi.org/10.37129/2313-7509.2020.13.1.69-75.

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In the study, the author substantiates a sufficient number of degrees of freedom of the dynamic platform of the simulator of combat tracked vehicles in the Armed Forces of Ukraine. The analysis of perception by the mechanic-driver of dynamic characteristics is carried out. The types of spatial movements of the car body are determined. The direction of further development of the training system, which provides skills in driving, is determined The analysis of the driver-driver’s perception of the dynamic characteristics of a combat tracked vehicle showed that to ensure the formation of adequate

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Waters, Sarah. "Situating Movements Historically: May 1968, Alain Touraine, and New Social Movement Theory." Mobilization: An International Quarterly 13, no. 1 (2008): 63–82. http://dx.doi.org/10.17813/maiq.13.1.l3116043285p606w.

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Recent literature on social movements has called for a renewal of theory so that it engages more directly with the social and historical dynamics in which movements emerge and crystallize. Too often, some critics argue, movements are treated as static or reified phenomena that are disconnected from their links to space and time. I examine new social movement theory from an historical perspective that emphasizes its connections with concrete social dynamics at a given point in time. Unlike alternative approaches, new social movement (NSM) theory and in particular the work of Alain Touraine, was

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Klemm, Anna H., Agneza Bosilj, Matko Gluncˇic´, Nenad Pavin, and Iva M. Tolic´. "Metaphase kinetochore movements are regulated by kinesin-8 motors and microtubule dynamic instability." Molecular Biology of the Cell 29, no. 11 (2018): 1332–45. http://dx.doi.org/10.1091/mbc.e17-11-0667.

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During metaphase, sister chromatids are connected to microtubules extending from the opposite spindle poles via kinetochores to protein complexes on the chromosome. Kinetochores congress to the equatorial plane of the spindle and oscillate around it, with kinesin-8 motors restricting these movements. Yet, the physical mechanism underlying kinetochore movements is unclear. We show that kinetochore movements in the fission yeast Schizosaccharomyces pombe are regulated by kinesin-8-promoted microtubule catastrophe, force-induced rescue, and microtubule dynamic instability. A candidate screen show

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Kistemaker, Dinant A., Jeremy D. Wong, and Paul L. Gribble. "The cost of moving optimally: kinematic path selection." Journal of Neurophysiology 112, no. 8 (2014): 1815–24. http://dx.doi.org/10.1152/jn.00291.2014.

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It is currently unclear whether the brain plans movement kinematics explicitly or whether movement paths arise implicitly through optimization of a cost function that takes into account control and/or dynamic variables. Several cost functions are proposed in the literature that are very different in nature (e.g., control effort, torque change, and jerk), yet each can predict common movement characteristics. We set out to disentangle predictions of the different variables using a combination of modeling and empirical studies. Subjects performed goal-directed arm movements in a force field (FF)

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Cisek, Paul, Stephen Grossberg, and Daniel Bullock. "A Cortico-Spinal Model of Reaching and Proprioception under Multiple Task Constraints." Journal of Cognitive Neuroscience 10, no. 4 (1998): 425–44. http://dx.doi.org/10.1162/089892998562852.

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A model of cortico-spinal trajectory generation for voluntary reaching movements is developed to functionally interpret a broad range of behavioral, physiological, and anatomical data. The model simulates how arm movements achieve their remarkable efficiency and accuracy in response to widely varying positional, speed, and force constraints. A key issue in arm movement control is how the brain copes with such a wide range of movement contexts. The model suggests how the brain may set automatic and volitional gating mechanisms to vary the balance of static and dynamic feedback information to gu

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Simniceanu, Loreta, Dumitru Neagoe, Mario Trotea, Mihaela Liana Bogdan, and Augustin Constantinescu. "Mathematic Model for Analysing the Dynamic Behavior of a Vehicle in the Field of Chaotic Movements." Applied Mechanics and Materials 822 (January 2016): 54–59. http://dx.doi.org/10.4028/www.scientific.net/amm.822.54.

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This paper presents a plane equivalent model of the vehicle and its mathematical model attached. The mathematical model is under a form of four differential equations system of order 1, in order to analyze the dynamic behaviour of the vehicle movement. Its goal is to determine the ranges of speed for that movement is stable or is unstable, or having chaotic character. The authors consider being necessary to know the conditions in which movements occur chaotic movements to avoid them through constructive or functional limitations. Speed values are identified for the behaviour of the system

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Liu, Qiliang, Sancheng Zhu, Meihua Chen, and Wenkai Liu. "Detecting Dynamic Communities in Vehicle Movements Using Ant Colony Optimization." Applied Sciences 12, no. 15 (2022): 7608. http://dx.doi.org/10.3390/app12157608.

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Detecting dynamic community structure in vehicle movements is helpful for revealing urban structures and human mobility patterns. Despite the fruitful research outcomes of community detection, the discovery of irregular-shaped and statistically significant dynamic communities in vehicle movements is still challenging. To overcome this challenge, we developed an evolutionary ant colony optimization (EACO) method for detecting dynamic communities in vehicle movements. Firstly, a weighted, spatially embedded graph was constructed at each time snapshot. Then, an ant-colony-optimization-based spati

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Li, Huaizhou, and Haiyan Hu. "Head Gesture Recognition Combining Activity Detection and Dynamic Time Warping." Journal of Imaging 10, no. 5 (2024): 123. http://dx.doi.org/10.3390/jimaging10050123.

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The recognition of head movements plays an important role in human–computer interface domains. The data collected with image sensors or inertial measurement unit (IMU) sensors are often used for identifying these types of actions. Compared with image processing methods, a recognition system using an IMU sensor has obvious advantages in terms of complexity, processing speed, and cost. In this paper, an IMU sensor is used to collect head movement data on the legs of glasses, and a new approach for recognizing head movements is proposed by combining activity detection and dynamic time warping (DT

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Kujawa, Katarzyna, Alina Żurek, Agata Gorączko, Roman Olejniczak, and Grzegorz Zurek. "Monitoring Eye Movements Depending on the Type of Visual Stimulus in Patients with Impaired Consciousness Due to Brain Damage." International Journal of Environmental Research and Public Health 19, no. 10 (2022): 6280. http://dx.doi.org/10.3390/ijerph19106280.

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The eyeballs are often the only way to communicate messages as a result of brain damage. However, it is not uncommon for them to become dysfunctional, thus requiring the introduction of appropriate therapy. The trajectory of eye movements (saccadic movements and gaze fixation) during observation of a static and dynamic point presented with an eye tracker was analyzed in the present study. Twelve patients with brain injury of different etiology, with different degrees of consciousness disorders and not communicating through verbal and motor skills, qualified for the study. All participants demo

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Anang Kukuh Adisusilo, Emmy Wahyuningtyas, and FX Wisnu Yudo Untoro. "Analisis Pergerakan Lengan Tari Bedoyo Majapahit Berbasis Motion Capture." TEMATIK 11, no. 2 (2024): 172–81. https://doi.org/10.38204/tematik.v11i2.2089.

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The Bedoyo Majapahit dance is an Indonesian cultural heritage that combines elegance and meaning in every movement, particularly in its signature arm movements. This study focuses on exploring and analyzing arm movement patterns in this traditional dance using motion capture technology, aiming to document, understand, and scientifically reveal the beauty and dynamics of these movements. Positional data of the shoulders, elbows, and wrists from both sides were analyzed to calculate speed and elbow angles. Descriptive statistics, correlation analysis, and K-Means clustering were applied to ident

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Esin, Nikolay I., and Alexey V. Khortov. "Dynamic of the Earth crust vertical movements during the Holocene." Hydrosphere Еcology (Экология гидросферы), no. 2(8) (December 2022): 47–68. http://dx.doi.org/10.33624/2587-9367-2022-2(8)-47-68.

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This work is a complex of theoretical studies of the dynamics of local vertical earth's crust movements. The article proposes a method for separating local curves of sea level change into eustatic and tectonic components. The results of calculations of the dynamics of the local Mediterranean coast vertical movements in the Holocene using materials from geological studies are presented. The data of satellite measurements of the current tectonic movement velocities are presented. The calculated values and satellite measurements are compared.

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Anuradha, K., and N. R. Raajan. "Strategy for Foreground Movement Identification Adaptive to Background Variations." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (2018): 4258. http://dx.doi.org/10.11591/ijece.v8i6.pp4258-4264.

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<p>Video processing has gained a lot of significance because of its applications in various areas of research. This includes monitoring movements in public places for surveillance. Video sequences from various standard datasets such as I2R, CAVIAR and UCSD are often referred for video processing applications and research. Identification of actors as well as the movements in video sequences should be accomplished with the static and dynamic background. The significance of research in video processing lies in identifying the foreground movement of actors and objects in video sequences. For

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Anuradha, K., and N.R. Raajan. "Strategy for Foreground Movement Identification Adaptive to Background Variations." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (2018): 4258–64. https://doi.org/10.11591/ijece.v8i6.pp4258-4264.

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Video processing has gained a lot of significance because of its applications in various areas of research. This includes monitoring movements in public places for surveillance. Video sequences from various standard datasets such as I2R, CAVIAR and UCSD are often referred for video processing applications and research. Identification of actors as well as the movements in video sequences should be accomplished with the static and dynamic background. The significance of research in video processing lies in identifying the foreground movement of actors and objects in video sequences. Foreground i

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Dziadzko, Mikhail, Adrien Péneaud, Lionel Bouvet, Thomas Robert, Laetitia Fradet, and David Desseauve. "The Potential Role of Wearable Inertial Sensors in Laboring Women with Walking Epidural Analgesia." Sensors 24, no. 6 (2024): 1904. http://dx.doi.org/10.3390/s24061904.

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There is a growing interest in wearable inertial sensors to monitor and analyze the movements of pregnant women. The noninvasive and discrete nature of these sensors, integrated into devices accumulating large datasets, offers a unique opportunity to study the dynamic changes in movement patterns during the rapid physical transformations induced by pregnancy. However, the final cut of the third trimester of pregnancy, particularly the first stage of labor up to delivery, remains underexplored. The growing popularity of “walking epidural”, a neuraxial analgesia method allowing motor function pr

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Park, Se-Woong, Hamal Marino, Steven K. Charles, Dagmar Sternad, and Neville Hogan. "Moving slowly is hard for humans: limitations of dynamic primitives." Journal of Neurophysiology 118, no. 1 (2017): 69–83. http://dx.doi.org/10.1152/jn.00643.2016.

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Mounting evidence suggests that human motor control uses dynamic primitives, attractors of dynamic neuromechanical systems that require minimal central supervision. However, advantages for control may be offset by compromised versatility. Extending recent results showing that humans could not sustain discrete movements as duration decreased, this study tested whether smoothly rhythmic movements could be maintained as duration increased. Participants performed horizontal movements between two targets, paced by sounds with intervals that increased from 1 to 6 s by 200 ms per cycle and then decre

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Reimer, Bryan, and Manbir Sodhi. "Detecting eye movements in dynamic environments." Behavior Research Methods 38, no. 4 (2006): 667–82. http://dx.doi.org/10.3758/bf03193900.

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Kang, Chien-Min, Ming-Chieh Wang, and Lin Lin. "The Dynamic Typology in the Development Process of Credit Union Movements." International Journal of Financial Studies 10, no. 2 (2022): 29. http://dx.doi.org/10.3390/ijfs10020029.

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The aim of this paper is to find a dynamic framework of analysis of credit union movements by grouping credit unions into different category types. Within the heterogeneous reality of the worldwide credit union movement, the typology provides a clearer understanding of the dynamics of change and development. We use panel-ordered logistic regression to find the key covariates of influence when analyzing the original typology to add further explanation of the development of credit union movements. By using transnational research, we revisit each of the three categories of the original typology t

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Reichert, Christoph, Lisa Klemm, Raghava Vinaykanth Mushunuri, et al. "Discriminating Free Hand Movements Using Support Vector Machine and Recurrent Neural Network Algorithms." Sensors 22, no. 16 (2022): 6101. http://dx.doi.org/10.3390/s22166101.

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Decoding natural hand movements is of interest for human–computer interaction and may constitute a helpful tool in the diagnosis of motor diseases and rehabilitation monitoring. However, the accurate measurement of complex hand movements and the decoding of dynamic movement data remains challenging. Here, we introduce two algorithms, one based on support vector machine (SVM) classification combined with dynamic time warping, and the other based on a long short-term memory (LSTM) neural network, which were designed to discriminate small differences in defined sequences of hand movements. We rec

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Siqueira, Luiz Felipi Ribeiro, Marcelo Santiago de Sousa, Flávio Luiz Cardoso-Ribeiro, and Sebastião Simões da Cunha Junior. "A Detailed Physical Explanation of an Aircraft Flutter Mechanism." Archives of Current Research International 24, no. 5 (2024): 191–212. http://dx.doi.org/10.9734/acri/2024/v24i5696.

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Each dynamic mode (aeroelastic) is made up of torsional and rotational movements. These two movements in each mode were dissociated and the phase, amplitude, damping and frequency of each of these movements were analyzed. The structural resistances of torsion and bending, as well as the bending movement itself, have a damping effect and torsion has a destabilizing effect on the oscillations (if the centre of pressure is ahead of the flexural axis). After a certain speed, bending becomes out of phase with the applied forces. At this point, the bending has an amplifying effect on the oscillation

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Hongwei, Yan, Yang Jin, and Zhang Baocheng. "Analysis of the Influences of Piston Crankshaft Offset on Piston Secondary Movements." Open Mechanical Engineering Journal 9, no. 1 (2015): 933–37. http://dx.doi.org/10.2174/1874155x01509010933.

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This paper takes dynamics analysis on the piston and the dynamic lubrication theory on the skirt and the ring of piston as the basis. Using AVL Glide software, through the establishment of the analysis model of the piston secondary movements, this study focuses on the effects of the crankshaft bias on piston secondary movements’ characteristics. This paper takes 5 different offsets, by comparing the piston lateral displacement, transverse movement speed, transverse acceleration, swinging angle, swing angular velocity and angular acceleration, finds out the relationships between crank offset va

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Saga, Satoshi, and Kotaro Sakae. "Sensory Perception During Partial Pseudo-Haptics Applied to Adjacent Fingers." Multimodal Technologies and Interaction 9, no. 3 (2025): 19. https://doi.org/10.3390/mti9030019.

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Pseudo-haptics, the phenomenon of creating a simulated tactile sensation by introducing a discrepancy between a voluntary movement and its visual feedback, is well known. Typically, when inducing pseudo-haptics, the same control-display ratio (C/D ratio) is applied to all effectors. However, with the aim of expanding the potential illusions that can be presented with pseudo-haptics, we investigated how perceived sensations change when partial pseudo-haptics are applied to adjacent body parts. In this research, we examined how perceived sensations change when pseudo-haptic stimuli are applied t

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Barthová, Martina, and Andrea Izáková. "The influence of the plyometric training on the lower limp explosive power of basketball players." Slovak Journal of Sport Science 9, no. 1 (2024): 40–52. http://dx.doi.org/10.24040/sjss.2024.9.1.40-52.

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The plyometric training program currently used almost all kinds of sports. Athletes use them to improve their performance in specific movements, such as throws, jumps, starts, etc. Especially basketball is considered a very explosive, dynamic and fast- paced sport in which plyometric training is widely used. For the highest explosive power, two training methods must be recommended: strength and plyometric training. PT is commonly used method for developing of the lower limb explosive power by natural dynamic movements, such as various jump and jumps with counter movement.

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Gurung, Ram. "Nurturing consciousness for mobilization: Dynamics of land rights movements in Nepal." Journal of Nepalese Studies 16, no. 1 (2024): 170–88. http://dx.doi.org/10.3126/jns.v16i1.71791.

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Conscious participant(s) is crucial in the organization and mobilization of social movements. It mediates the entire process of movement practices. Despite its importance, it is regarded merely as an autonomous internal dynamic, overlooking the role external factors play in building consciousness among marginalized communities. In-depth conversations with movement participants and activists in Nepal’s land rights movements, evident that nurturing consciousness is a process predominantly shaped by external factors, particularly the individual and organizations. To transform marginalized communi

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Scheidt, Robert A., David J. Reinkensmeyer, Michael A. Conditt, W. Zev Rymer, and Ferdinando A. Mussa-Ivaldi. "Persistence of Motor Adaptation During Constrained, Multi-Joint, Arm Movements." Journal of Neurophysiology 84, no. 2 (2000): 853–62. http://dx.doi.org/10.1152/jn.2000.84.2.853.

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We studied the stability of changes in motor performance associated with adaptation to a novel dynamic environment during goal-directed movements of the dominant arm. Eleven normal, human subjects made targeted reaching movements in the horizontal plane while holding the handle of a two-joint robotic manipulator. This robot was programmed to generate a novel viscous force field that perturbed the limb perpendicular to the desired direction of movement. Following adaptation to this force field, we sought to determine the relative role of kinematic errors and dynamic criteria in promoting recove

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Castellano, Ginevra, Marcello Mortillaro, Antonio Camurri, Gualtiero Volpe, and Klaus Scherer. "Automated Analysis of Body Movement in Emotionally Expressive Piano Performances." Music Perception 26, no. 2 (2008): 103–19. http://dx.doi.org/10.1525/mp.2008.26.2.103.

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EMOTIONAL EXPRESSION IN MUSIC PERFORMANCE includes important cues arising from the body movement of the musician. This movement is related to both the musical score execution and the emotional intention conveyed. In this experiment, a pianist was asked to play the same excerpt with different emotionally expressive intentions. The aim was to verify whether different expressions could be distinguished based on movement by trying to determine which motion cues were most emotion-sensitive. Analyses were performed via an automated system capable of detecting the temporal profiles of two motion cues

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Tagliamonte, Massimiliano S., Nabil Abid, Stefano Borocci, et al. "Multiple Recombination Events and Strong Purifying Selection at the Origin of SARS-CoV-2 Spike Glycoprotein Increased Correlated Dynamic Movements." International Journal of Molecular Sciences 22, no. 1 (2020): 80. http://dx.doi.org/10.3390/ijms22010080.

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Our evolutionary and structural analyses revealed that the severe acute respiratory syndrome (SARS) coronavirus 2 (SARS-CoV-2) spike gene is a complex mosaic resulting from several recombination events. Additionally, the fixation of variants has mainly been driven by purifying selection, suggesting the presence of conserved structural features. Our dynamic simulations identified two main long-range covariant dynamic movements of the novel glycoprotein, and showed that, as a result of the evolutionary duality, they are preserved. The first movement involves the receptor binding domain with the

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Li, B.-B., and Z.-F. Yuan. "Non-linear and chaos characteristics of heart sound time series." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 222, no. 3 (2008): 265–72. http://dx.doi.org/10.1243/09544119jeim331.

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Analysis of chaotic time series is common in many fields of science and engineering. It arises primarily from massive interactions between the many different parts of a non-linear system or in non-linear physical phenomena that are intrinsically complex. It is important to analyse the time series of these non-linear dynamic systems based on chaos theory. In recent years, many researchers on heart dynamics have demonstrated that chaos really exists in heart movements. In this study the non-linear and chaos characteristics are investigated and the fractal dimensions (FDs) and largest Lyapunov ex

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van Zandwijk, J. P., M. F. Bobbert, and J. Harlaar. "Predictions of Mechanical Output of the Human M. Triceps Surae on the Basis of Electromyographic Signals: The Role of Stimulation Dynamics." Journal of Biomechanical Engineering 122, no. 4 (2000): 380–86. http://dx.doi.org/10.1115/1.1286562.

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In order to assess the significance of the dynamics of neural control signals for the rise time of muscle moment, simulations of isometric and dynamic plantar flexion contractions were performed using electromyographic signals (EMG signals) of m. triceps surae as input. When excitation dynamics of the muscle model was optimized for an M-wave of the medial head of m. gastrocnemius (GM), the model was able to make reasonable predictions of the rise time of muscle moment during voluntary isometric plantar flexion contractions on the basis of voluntary GM EMG signals. The rise time of muscle momen

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Oliver, Gretchen D., Audrey Stone, and Jessica Washington. "Hamstring and Gluteal Muscle Activation During the Assessment of Dynamic Movements." International Journal of Athletic Therapy and Training 21, no. 4 (2016): 30–33. http://dx.doi.org/10.1123/ijatt.2015-0050.

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Recently, sports medicine professionals have shown interest in using dynamic movement assessments to help identify biomechanical risk factors for musculoskeletal injury. Thus the purpose of this study was to propose two movements (single leg step down and single leg lateral hop) that could predict injury and determine if these proposed movements elicited muscle activation of the hamstrings and gluteals. Surface electromyography was employed and muscle activations of the hamstrings and gluteus medius muscles were classified as strong during both the single leg step down (SLSD) and single leg la

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Gamlin, P. D., and L. E. Mays. "Dynamic properties of medial rectus motoneurons during vergence eye movements." Journal of Neurophysiology 67, no. 1 (1992): 64–74. http://dx.doi.org/10.1152/jn.1992.67.1.64.

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1. An early study by Keller reported that medial rectus motoneurons display a step change in firing rate during accommodative vergence movements. However, a later study by Mays and Porter reported gradual changes in firing rate during symmetrical vergence movements. Furthermore, subsequent inspection of the activity of individual medial rectus motoneurons during vergence movements indicated transient changes in their firing rate that had not been noted by Mays and Porter. For conjugate eye movements, in addition to a position signal, motoneurons display an eye velocity signal that compensates

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Yan, Jin H. "Tai Chi Practice Improves Senior Citizens’ Balance and Arm Movement Control." Journal of Aging and Physical Activity 6, no. 3 (1998): 271–84. http://dx.doi.org/10.1123/japa.6.3.271.

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Empirical evidence from this study supports the hypothesis that Tai Chi practice can improve senior citizens’ dynamic balance control and rapid-aiming arm movement performance. Of 38 senior citizens, 28 (M = 78.8 years. SD = 2.1) chose to practice the 24-form simplified Tai Chi. The remaining 10 seniors (M = 79.2 years. SD = 1.9) selected a locomotor activity (walking or jogging). Dynamic balance tests and ballistic-aiming arm movements were conducted for all participants at the beginning, middle (4th week), and end of the 8-week exercise program. The Tai Chi participants improved their time o

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Sierra, Daniel A., and John D. Enderle. "3D Dynamic Modeling of the Head-Neck Complex for Fast Eye and Head Orientation Movements Research." Modelling and Simulation in Engineering 2011 (2011): 1–12. http://dx.doi.org/10.1155/2011/630506.

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A 3D dynamic computer model for the movement of the head-neck complex is presented. It incorporates anatomically correct information about the diverse elements forming the system. The skeleton is considered as a set of interconnected rigid 3D bodies following the Newton-Euler laws of movement. The muscles are modeled using Enderle's linear model, which shows equivalent dynamic characteristics to Loeb's virtual muscle model. The soft tissues, namely, the ligaments, intervertebral disks, and facet joints, are modeled considering their physiological roles and dynamics. In contrast with other head

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Mauritzen, Mette, Andrew E. Derocher, and Øystein Wiig. "Space-use strategies of female polar bears in a dynamic sea ice habitat." Canadian Journal of Zoology 79, no. 9 (2001): 1704–13. http://dx.doi.org/10.1139/z01-126.

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In environments with high spatiotemporal variability in resources, animals may exhibit nomadic movements for resource tracking as opposed to long-term area fidelity. Polar bears (Ursus maritimus) inhabit the dynamic sea ice, preying on seals, and demonstrate considerable intraspecific variation in space use. We studied patterns of fidelity and annual range size for 74 adult female polar bears captured in the Norwegian Arctic that were tracked for up to 5 years using satellite telemetry data. We used the autocorrelation structure of movements and distance between observations at a 1-year interv

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Cordonnier, Marie-Neige, Daniel Dauzonne, Daniel Louvard, and Evelyne Coudrier. "Actin Filaments and Myosin I Alpha Cooperate with Microtubules for the Movement of Lysosomes." Molecular Biology of the Cell 12, no. 12 (2001): 4013–29. http://dx.doi.org/10.1091/mbc.12.12.4013.

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An earlier report suggested that actin and myosin I alpha (MMIα), a myosin associated with endosomes and lysosomes, were involved in the delivery of internalized molecules to lysosomes. To determine whether actin and MMIα were involved in the movement of lysosomes, we analyzed by time-lapse video microscopy the dynamic of lysosomes in living mouse hepatoma cells (BWTG3 cells), producing green fluorescent protein actin or a nonfunctional domain of MMIα. In GFP-actin cells, lysosomes displayed a combination of rapid long-range directional movements dependent on microtubules, short random movemen

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Guigon, Emmanuel, Pierre Baraduc, and Michel Desmurget. "Computational Motor Control: Redundancy and Invariance." Journal of Neurophysiology 97, no. 1 (2007): 331–47. http://dx.doi.org/10.1152/jn.00290.2006.

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The nervous system controls the behavior of complex kinematically redundant biomechanical systems. How it computes appropriate commands to generate movements is unknown. Here we propose a model based on the assumption that the nervous system: 1) processes static (e.g., gravitational) and dynamic (e.g., inertial) forces separately; 2) calculates appropriate dynamic controls to master the dynamic forces and progress toward the goal according to principles of optimal feedback control; 3) uses the size of the dynamic commands (effort) as an optimality criterion; and 4) can specify movement duratio

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Thelen, Esther. "Origins of origins of motor control." Behavioral and Brain Sciences 18, no. 4 (1995): 780–83. http://dx.doi.org/10.1017/s0140525x00041030.

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AbstractExamination of infant spontaneous and goal-directed arm movements supports Feldman and Levin's hypothesis of a functional hierarchy. Early infant movements are dominated by biomechanical and dynamic factors without external frames of reference. Development involves not only learning to generate these frames of reference, but also protecting the higher-level goal of the movement from internal and external perturbations.

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