A comparison of low back kinetic estimates obtained through posture matching, rigid link modeling and an EMG-assisted model

A comparison of low back kinetic estimates obtained through posture matching, rigid link modeling and an EMG-assisted model

This study examined errors introduced by a posture matching approach (3DMatch) relative to dynamic three-dimensional rigid link and EMG-assisted models. Eighty-eight lifting trials of various combinations of heights (floor, 0.67, 1.2 m), asymmetry (left, right and center) and mass (7.6 and 9.7 kg) w...

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Veröffentlicht in:Applied ergonomics 2011-07, Vol.42 (5), p.644-651
Hauptverfasser: Parkinson, R.J., Bezaire, M., Callaghan, J.P.
Format: Artikel
Sprache:eng
Schlagworte:
3-D technology
3DMatch
Applied physiology
Asymmetry
Biological and medical sciences
Biomechanical Phenomena - physiology
Electromyography - instrumentation
Electromyography - methods
Ergonomics. Work place. Occupational physiology
Human physiology applied to population studies and life conditions. Human ecophysiology
Humans
Imaging, Three-Dimensional - instrumentation
Imaging, Three-Dimensional - methods
Kinetics
Medical sciences
Models, Anatomic
Posture
Posture - physiology
Posture matching
Spine
Spine - physiology
Spine loading
Statistics as Topic
Stress, Mechanical
Task Performance and Analysis
Videotape Recording
Weight-Bearing - physiology
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Beschreibung
Zusammenfassung:This study examined errors introduced by a posture matching approach (3DMatch) relative to dynamic three-dimensional rigid link and EMG-assisted models. Eighty-eight lifting trials of various combinations of heights (floor, 0.67, 1.2 m), asymmetry (left, right and center) and mass (7.6 and 9.7 kg) were videotaped while spine postures, ground reaction forces, segment orientations and muscle activations were documented and used to estimate joint moments and forces (L5/S1). Posture matching over predicted peak and cumulative extension moment ( p 
ISSN:0003-6870
1872-9126
DOI:10.1016/j.apergo.2010.09.012