1. Passive elastic contribution of hip extensors to joint moments during walking in people with low back pain
- Author
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Raymond Y.W. Lee, Jin Luo, Neale A. Tillin, and Mark G. Hines
- Subjects
Male ,Supine position ,Knee Joint ,Work done ,0302 clinical medicine ,0903 Biomedical Engineering ,Back pain ,Power absorption ,Medicine ,Orthopedics and Sports Medicine ,Range of Motion, Articular ,Gait ,1106 Human Movement And Sports Science ,Hip extensors ,Low back pain ,Biomechanical Phenomena ,Passive joint ,Biomechanical model ,Female ,Hip Joint ,medicine.symptom ,Algorithms ,0913 Mechanical Engineering ,Adult ,musculoskeletal diseases ,medicine.medical_specialty ,clinical_medicine ,Movement ,Biophysics ,Passive moments ,03 medical and health sciences ,Young Adult ,Physical medicine and rehabilitation ,Imaging, Three-Dimensional ,Humans ,Muscle, Skeletal ,Force transducer ,business.industry ,Biomedical-engineering ,030229 sport sciences ,Elasticity ,Orthopedics ,Power ,physiology ,business ,Low Back Pain ,human activities ,030217 neurology & neurosurgery - Abstract
Background\ud It has been found that alterations in passive muscle properties may be associated with low back pain, and these may be responsible for the altered gait parameters often observed in subjects with back pain. The purpose of the present study was to assess total hip and passive hip extensor moments in people with or without low back pain during the hip flexion component of walking.\ud Methods\ud 52 subjects volunteered for this study (low back pain group, n = 25 (male n = 13, female n = 12), control group, n = 27 (male n = 15, female n = 12)). Passive hip moments were calculated using an adapted force transducer during supine testing. A biomechanical model and predictive equation were used to calculate passive hip moments during walking. Total hip moments were calculated with the use of a 9 camera, 3-D motion-capture system.\ud Findings\ud Independent samples t-tests demonstrated no significant differences between groups for gait parameters or hip or knee angles. Results of the ANOVAs demonstrated significant differences in passive hip flexor moments during the second half of hip flexion ( P
- Published
- 2018