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Postural adaptation to walking on inclined surfaces: II. Strategies following spinal cord injury

To investigate the postural adaptations to inclined walking in spinal cord injured (SCI) subjects. Eight subjects with an incomplete spinal cord injury and eight age- and sex-matched healthy control subjects walked on a treadmill at five different grades (from −10 to 10%) without any assistance. The...

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Published in:Clinical neurophysiology 2006-06, Vol.117 (6), p.1273-1282
Main Authors: Leroux, Alain, Fung, Joyce, Barbeau, Hugues
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Language:English
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description To investigate the postural adaptations to inclined walking in spinal cord injured (SCI) subjects. Eight subjects with an incomplete spinal cord injury and eight age- and sex-matched healthy control subjects walked on a treadmill at five different grades (from −10 to 10%) without any assistance. The movements of the trunk and pelvis were recorded with four high-resolution cameras. The SCI subjects walked with greater forward tilt of both trunk and pelvic segments during level or inclined walking and could not adapt their body orientation to the inclination of the support surface as observed in healthy control subjects. Trunk and pelvic rotations as well as lateral excursions were maintained constant during inclined walking in both groups of subjects but total excursions were always greater in the SCI subjects. We argue that the forward bending posture observed in SCI subjects at any treadmill grade is adopted to compensate for a certain degree of instability due to lower-limb deficits and is a postural adaptation to the daily use of ambulatory assistive devices. The bent posture adopted by SCI subjects is not adequate when performing level or downhill walking and can lead to a loss of balance or a fall in these subjects.
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subjects Adaptation
Adaptation, Physiological - physiology
Adult
Back - physiology
Biological and medical sciences
Biomechanical Phenomena
Electrodiagnosis. Electric activity recording
Exercise Test
Female
Fundamental and applied biological sciences. Psychology
Gait - physiology
Humans
Investigative techniques, diagnostic techniques (general aspects)
Leg - physiology
Male
Medical sciences
Middle Aged
Nervous system
Pelvis - physiology
Posture
Posture - physiology
Shoulder - physiology
Slope
Spinal Cord Injuries - physiopathology
Spinal cord injury
Striated muscle. Tendons
Trunk
Vertebrates: osteoarticular system, musculoskeletal system
Walking
Walking - physiology
title Postural adaptation to walking on inclined surfaces: II. Strategies following spinal cord injury
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