Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ali Shahvarpour"'
Publikováno v:
Computer Methods in Biomechanics and Biomedical Engineering. 25:1156-1168
Various interpretations and parameters have been proposed to assess spinal stability such as antagonist muscle coactivity, trunk stiffness and spinal buckling load; however, the correlation between...
Publikováno v:
Computer methods in biomechanics and biomedical engineering. 25(10)
Various interpretations and parameters have been proposed to assess spinal stability such as antagonist muscle coactivity, trunk stiffness and spinal buckling load; however, the correlation between these parameters remains unknown. We evaluated spina
Autor:
Farshid Ghezelbash, Aboulfazl Shirazi-Adl, Denis Gagnon, Ali Shahvarpour, Navid Arjmand, Amir Hossein Eskandari, Christian Larivière
Publikováno v:
Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology. 65
Conventional electromyography-driven (EMG) musculoskeletal models are calibrated during maximum voluntary contraction (MVC) tasks, but individuals with low back pain cannot perform unbiased MVCs. To address this issue, EMG-driven models can be calibr
Autor:
Hakim Mecheri, Ariane Viau, Christian Larivière, Myriam Gauvin, Christina Gravel, Anne-Marie Jean, Ali Shahvarpour
Publikováno v:
Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology. 46
Background Lumbar spine stability is regularly studied by positioning different loads at different heights and distance and measuring trunk muscle activation changes. Some of these studies have reported sex differences, but this needs to be revisited
Publikováno v:
Gaitposture. 72
Background Previous findings suggest that wearing a lumbar belt may benefit some patients with low back pain; however, the mechanisms of action are not yet fully understood. Research question The effect of wearing two flexible (extensible and non-ext
Publikováno v:
Journal of Biomechanics. 48:716-720
Spine stability demand influences active-passive coordination of the trunk response, especially during sudden perturbations. The objective of this study was to look at the role of passive, stationary active and reflexive subsystems on spinal stabilit
Publikováno v:
Gaitposture. 61
Lumbar stabilization programs reduce pain and disability, but the mechanisms of action underlying this treatment are unknown. Trunk postural control during unstable sitting represents a surrogate measure of motor control mechanisms involved to mainta
Autor:
Alessia Negrini, Christian Larivière, Michael J. L. Sullivan, Richard Preuss, Ali Shahvarpour
Publikováno v:
Applied ergonomics. 69
Workers with low back pain (LBP) may benefit from wearing a lumbar belt (LB), but the biomechanical and psychological mechanisms involved are not fully understood. Two types of flexible LB (extensible and non-extensible) were compared to a control co
Publikováno v:
Clinical biomechanics (Bristol, Avon). 48
Background Lumbar stabilization exercise programs should normalize the aberrant movements patterns often observed in patients with low back pain. This study aimed to determine the effect of an 8-week lumbar stabilization program on EMG/kinematics mea
Publikováno v:
Journal of biomechanics. 49(6)
Unstable sitting on a wobble chair with different balance difficulty levels can be used as an effective tool in exercises as well as evaluation and therapeutic stages of rehabilitation. No data on muscle activity levels and spinal loads are however a