Trunk muscle activation and associated lumbar spine joint shear forces under different levels of external forward force applied to the trunk
I Kingma, D Staudenmann, JH Van Dieen - Journal of Electromyography …, 2007 - Elsevier
… muscle force pulled the trunk forward so that the increase in muscle force with increasing
externally applied forward force … flexion but not on muscle activation, shear forces, compression …
externally applied forward force … flexion but not on muscle activation, shear forces, compression …
Comparison of trunk muscle forces and spinal loads estimated by two biomechanical models
N Arjmand, D Gagnon, A Plamondon, A Shirazi-Adl… - Clinical …, 2009 - Elsevier
… Subject to similar comparisons under other loading conditions involving isometric and
dynamic symmetric/asymmetric lifting tasks with large forward flexion, future efforts should aim to …
dynamic symmetric/asymmetric lifting tasks with large forward flexion, future efforts should aim to …
Spine loading during trunk lateral bending motions
WS Marras, KP Granata - Journal of biomechanics, 1997 - Elsevier
… from ten trunk muscles so that a vector force contribution can be determined for each muscle.
… The model used in this study employed the muscle insertion data described in Granata and …
… The model used in this study employed the muscle insertion data described in Granata and …
Model and in vivo studies on human trunk load partitioning and stability in isometric forward flexions
N Arjmand, A Shirazi-Adl - Journal of biomechanics, 2006 - Elsevier
… the trunk redundancy to determine muscle forces, spinal loads, and stability margin in isometric
forward flexion … The objectives of this study were to determine trunk muscle forces, spinal …
forward flexion … The objectives of this study were to determine trunk muscle forces, spinal …
Trunk muscle strength is impaired multidirectionally after stroke
RW Bohannon, D Cassidy, S Walsh - Clinical rehabilitation, 1995 - journals.sagepub.com
… was to describe forward and lateral trunk flexion strength … trunk muscles in this study, are
important because of their implications for function. In patients with stroke, trunk muscle strength …
important because of their implications for function. In patients with stroke, trunk muscle strength …
Estimation of trunk muscle forces and spinal loads during fatiguing repetitive trunk exertions
PJ Sparto, M Parnianpour - Spine, 1998 - journals.lww.com
… During all dynamic exertions, participants extended their trunks from a forward flexion
posture of 35 degrees to 0 degrees (upright standing), at a constant velocity of 15 degrees per …
posture of 35 degrees to 0 degrees (upright standing), at a constant velocity of 15 degrees per …
Wrapping of trunk thoracic extensor muscles influences muscle forces and spinal loads in lifting tasks
… an accurate estimation of trunk muscle forces, spinal loads and … trunk muscle geometries.
The lines of action of erector spinae … flexion increased muscle forces and compression forces at …
The lines of action of erector spinae … flexion increased muscle forces and compression forces at …
Effects of lumbo-pelvic rhythm on trunk muscle forces and disc loads during forward flexion: A combined musculoskeletal and finite element simulation study
… In conclusion, the lumbo-pelvic rhythm during forward flexion has important effects on muscle
forces and disc loads, as well as on load-sharing. However, less influence on the IDP and …
forces and disc loads, as well as on load-sharing. However, less influence on the IDP and …
The effects of motion on trunk biomechanics
… This review investigated the impact of trunk dynamics on trunk strength and structural loading
… No studies evaluated the imposed trunk moments for flexion and lateral flexion. The only …
… No studies evaluated the imposed trunk moments for flexion and lateral flexion. The only …
Trunk posture and spinal stability
KP Granata, SE Wilson - Clinical biomechanics, 2001 - Elsevier
… ES activity with trunk flexion. In flexed postures, the muscle force necessary to satisfy … of
the ES from the two models were identical in forward flexed positions with a mean level of 42%. …
the ES from the two models were identical in forward flexed positions with a mean level of 42%. …
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