Relevant bibliographies by topics / Forward bending and backward return

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Forward bending and backward return'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Forward bending and backward return"

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Vazirian, Milad, Iman Shojaei, Anuj Agarwal, and Babak Bazrgari. "Lumbar contribution to the trunk forward bending and backward return; age-related differences." Ergonomics 60, no. 7 (2016): 967–76. http://dx.doi.org/10.1080/00140139.2016.1237676.

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Shojaei, Iman, and Babak Bazrgari. "Activity of Erector Spinae During Trunk Forward Bending and Backward Return: The Effects of Age." Annals of Biomedical Engineering 45, no. 6 (2017): 1511–19. http://dx.doi.org/10.1007/s10439-017-1811-y.

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Lee, Won-hwee. "Effects of Exercise Using a Stick on Muscle Activity of Gluteus Maximus and Erector Spinae during Backward Return from Forward Bending." Journal of Musculoskeletal Science and Technology 3, no. 2 (2019): 38–43. http://dx.doi.org/10.29273/jmst.2019.3.2.38.

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Shojaei, Iman, Milad Vazirian, Elizabeth G. Salt, Linda R. Van Dillen, and Babak Bazrgari. "Timing and magnitude of lumbar spine contribution to trunk forward bending and backward return in patients with acute low back pain." Journal of Biomechanics 53 (February 2017): 71–77. http://dx.doi.org/10.1016/j.jbiomech.2016.12.039.

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Shojaei, Iman, Elizabeth G. Salt, Quenten Hooker, Linda R. Van Dillen, and Babak Bazrgari. "Comparison of lumbo-pelvic kinematics during trunk forward bending and backward return between patients with acute low back pain and asymptomatic controls." Clinical Biomechanics 41 (January 2017): 66–71. http://dx.doi.org/10.1016/j.clinbiomech.2016.12.005.

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Saito, Hiroki, Yoshiteru Watanabe, Toshiki Kutsuna, et al. "Spinal movement variability associated with low back pain: A scoping review." PLOS ONE 16, no. 5 (2021): e0252141. http://dx.doi.org/10.1371/journal.pone.0252141.

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Objective To identify suggestions for future research on spinal movement variability (SMV) in individuals with low back pain (LBP) by investigating (1) the methodologies and statistical tools used to assess SMV; (2) characteristics that influence the direction of change in SMV; (3) the methodological quality and potential biases in the published studies; and (4) strategies for optimizing SMV in LBP patients. Methods We searched literature databases (CENTRAL, Medline, PubMed, Embase, and CINAHL) and comprehensively reviewed the relevant papers up to 5 May 2020. Eligibility criteria included stu
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TULLO, ALEXANDER H. "MOVING FORWARD BY BENDING BACKWARD." Chemical & Engineering News 86, no. 16 (2008): 28–31. http://dx.doi.org/10.1021/cen-v086n016.p028.

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Hsu, Chien-Jen, Yi-Wen Chang, Wen-Ying Chou, Chou-Ping Chiou, Wei-Ning Chang, and Chi-Yin Wong. "Measurement of spinal range of motion in healthy individuals using an electromagnetic tracking device." Journal of Neurosurgery: Spine 8, no. 2 (2008): 135–42. http://dx.doi.org/10.3171/spi/2008/8/2/135.

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Object The authors measured the range of motion (ROM) of the spine in healthy individuals by using an electromagnetic tracking device to evaluate the functional performance of the spine. Methods The authors used the Flock of Birds electromagnetic tracking device with 4 receiver units attached to C-7, T-12, S-1, and the midthigh region. Forward/backward bending, bilateral side bending, and axial rotation of the trunk were performed in 18 healthy individuals. Results The average ROM was calculated after 3 consecutive measurements. The thoracic spine generated the greatest angle in axial rotation
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Hameiri, Boaz, and Arie Nadler. "Looking Backward to Move Forward." Personality and Social Psychology Bulletin 43, no. 4 (2017): 555–69. http://dx.doi.org/10.1177/0146167216689064.

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Two large-scale surveys conducted in Israel (Study 1A) and the Palestinian Authority (Study 1B) show that the belief by group members that people in the “enemy” group acknowledge their victimhood (i.e., Holocaust and Nakba for Jews and Palestinians, respectively) is associated with Israeli-Jews’ readiness to accept responsibility for Palestinian sufferings and offer apologies. For Palestinians, this belief is linked to a perceived higher likelihood of a reconciled future with Israelis. Three field experiments demonstrate that a manipulated high level of acknowledgment of Jewish victimhood by P
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Schwarz, Ori. "Bending Forward, One Step Backward: On the Sociology of Tasting Techniques." Cultural Sociology 7, no. 4 (2013): 415–30. http://dx.doi.org/10.1177/1749975513480957.

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Dissertations / Theses on the topic "Forward bending and backward return"

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Shojaei, Iman. "LOWER BACK BIOMECHANICS AT NON-CHRONIC STAGE OF LOW BACK PAIN." UKnowledge, 2018. https://uknowledge.uky.edu/cbme_etds/52.

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Prior studies have reported differences in lower back biomechanics during activities of daily living between individuals with and without chronic low back pain (LBP). Nevertheless, the literature on lower back biomechanics of patients with non-chronic LBP is scant. Therefore, the objective of this study, as the first step towards future prospective studies, was to investigate the lower back biomechanics in patients with non-chronic LBP. Case-control studies were conducted wherein measures of lumbo-pelvic coordination during bending and return tasks as well as measures of mechanical demand on t
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Conference papers on the topic "Forward bending and backward return"

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Paloschi, Davide, Marco Bravi, Sandra Miccinilli, et al. "Preliminary analysis on the cervicothoracic angular velocity during forward bending and backward return task." In 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT). IEEE, 2021. http://dx.doi.org/10.1109/metroind4.0iot51437.2021.9488521.

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Yan, Xin, Yabo Wang, Kang Zhang, Xinbo Dai, and Kun He. "Investigations Into Aerodynamic Performance of Turbine Stages With Flexible Shroud Seals." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14329.

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Abstract The present paper utilizes a numerical method to investigate the effect of flexible shroud seals, including the forward bending flexible seals and backward bending flexible seals, on aerodynamic performance of high pressure steam turbine stages. At first, the wear performance of flexible seal is analyzed with the Finite Element Analysis method. It shows that wear in flexible strip is so small that only the installation clearance needs to be considered in operation process. Then, by replacing the labyrinth shroud seals with flexible shroud seals, the aerodynamic efficiency, outlet flow
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Yan, Xin, and Xinbo Dai. "Effects of Labyrinth Fin Wear on Aerodynamic Performance of Turbine Stages: Part I — Bending Damages." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90152.

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Abstract Labyrinth seals are widely applied in turbo machines because of their geometrical simplicity, convenient installation, reliable operation and excellent sealing performance. However, in realistic operation process, they usually encounter transient conditions (starting-up, shutting down, etc.) and unavoidable vibrations, which may cause wear in the labyrinth fins. After rubbing, the sealing performance of labyrinth seal will be varied in contrast to the original design. Correspondingly, the aerodynamic efficiency of the turbine stage will be affected by the variation of leakage flow in
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Wang, Weimin, Qihang Li, Jinji Gao, Timothy Dimond, and Paul Allaire. "Forward and Backward Mode Excitation of Flexible Rotor Supported by Tilting Pad Bearings: Numerical and Experimental Investigation." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26275.

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Understanding rotor modal excitations is crucial for high performance centrifugal compressors and other rotating machines. Assuring low vibration levels of such machines at operating conditions before delivery is important both for original equipment manufacturers (OEMs) and end users. In this paper, transient simulations of a full scale test rig rotor subject to sine sweep excitations are performed to investigate the forward and backward rotor whirling response. The applied sine sweep excitations are circular forward, circular backward, and elliptical forward, respectively. The effects of exc
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Lee, Chong-Won, and Jong-Seok Ham. "Mode Identification for Rotating Rigid Shaft With Flexible Disks by Mode Splits." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8266.

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Abstract This paper investigates the mode splits of the bending coupled modes of a rotating shaft with multiple flexible disks, in which the disks are rigidly attached to the rigid shaft supported by bearings. The bending coupled modes, in which shaft bending modes are coupled with one nodal diameter disk modes, are classified as the balanced and unbalanced modes. The mode splits of the balanced modes are the same as those of pure disk modes since the shaft does not experience any motion. On the other hand, the mode splits between pairs of the forward and backward unbalanced modes are found to
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Stratton, Eric, Larry Howell, and Anton Bowden. "Force-Displacement Model of the FlexSuRe™ Spinal Implant." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28476.

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This paper presents modeling of a novel compliant spinal implant designed to reduce back pain and restore function to degenerate spinal disc tissues as well as provide a mechanical environment conducive to healing of the tissues. Modeling was done through the use of the pseudo-rigid-body model. The pseudo-rigid-body model is a 3 DOF mechanism for flexion-extension (forward-backward bending) and a 5 DOF mechanism for lateral bending (side-to-side). These models were analyzed using the principle of virtual work to obtain the force-deflection response of the device. The model showed good correlat
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Sehgal, Rakesh, Ashutosh Tiwari, and Vivek Sood. "Design, Analysis and Fabrication of a Six-Legged Walking Machine." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64111.

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This paper presents the steps involved in the design, analysis and fabrication of a six-legged walking machine. The suggested machine uses the basic four bar chain mechanism and slotted lever type quick return mechanism with some modifications. The synthesis of the link lengths is based on Freudenstein’s (algebraic) three accuracy points. The velocity and acceleration analysis of oscillating links explains the effect of change in the crank’s angular velocity and acceleration on all other links. The suggested machine is capable of moving forward and backward, turning right and left and rotating
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Haghshenas-Jaryani, Mahdi, Maulik Manvar, and Muthu B. J. Wijesundara. "Torque Characterization of a Novel Pneumatic Soft-and-Rigid Hybrid Actuator." In ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dscc2017-5201.

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This paper presents development of a theoretical model for predicting the torque generated by a pneumatic soft-and-rigid hybrid actuator at a given actuation pressure and bending angle. The soft actuator with a novel architecture is comprised of half bellow-shaped flexible hollow structure (soft section) in-between block-shaped semi-rigid sections made of silicone rubber materials. This actuator provides forward and backward bending motion when air pressure and vacuum are applied into the soft section, respectively. A simplified steady-state model was developed based on the quasi-static assump
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Kudo, Takeshi, Koki Shiohata, Osami Matsushita, Hiroyuki Fujiwara, Akira Okabe, and Shigeo Sakurai. "Experimental Study of Torsional-Bending Coupled Vibration of a Rotor System With a Bladed Disk." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12115.

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An experimental investigation was conducted to confirm the bending-torsion coupled vibration of a rotor system with a bladed disk. For a rotor with relatively long blades such as in the latest low-pressure steam turbines, coupled vibration with shaft torsional vibration represents the bladed disk natural frequency of a nodal diameter (k) of zero (umbrella mode). Today this well-known behavior is reflected in the design of steam turbine rotor systems to prevent the blade vibration resonance due to torque excitation caused by the electric power grid, a standard for which is proposed by ISO 22266
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Kartheek, Amaroju, and Kiran Vijayan. "Nonlinear Interactions Within a Flexible Rotating Shaft." In ASME 2019 Gas Turbine India Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gtindia2019-2766.

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Abstract Designing of an industrial gas turbine rotor needs a special attention to ensure safe and reliable operation of the entire machine. Rotor experiences bending, axial, and torsional vibration during the time of operation and Rotor-stator interaction during whirling involves nonlinearities in the form of friction and impact. Rub-impact is the most common fault in rotating machinery, which causes excessive vibration and reduces the efficiency of the machine. Therefore, it is very important to study and understand the contact phenomena in rotor dynamics. The purpose of this study is to und
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