| Titre : | Mediolateral Joint Powers at the Low Back Among Persons With Unilateral Transfemoral Amputation (2015) |
| Auteurs : | Brad D. Hendershot ; Erik J. Wolf |
| Type de document : | Article |
| Dans : | Archives of Physical Medicine and Rehabilitation (2015/1, 2015) |
| Article en page(s) : | p. 154-157 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Amputation ; Locomotion ; Rééducation et réadaptation ; Tronc |
| Mots-clés: | Amputation chirurgicale ; Biomechanical Phenomena ; Phénomènes biomécaniques ; Kinetics ; Cinétique ; Torso |
| Résumé : |
Objective To analyze mediolateral joint powers at the low back during gait among persons with and without unilateral transfemoral amputation to better understand the functional contributions of tissues in and around the low back to altered lateral trunk movements in this population. Design Retrospective analysis of biomechanical gait data. Setting Gait laboratory. Participants Twenty persons with unilateral transfemoral amputation and 20 uninjured controls (N=40). Interventions Not applicable. Main Outcome Measures Net joint powers, and total generation (+) and absorption (−) energies, at the low back (L5/S1 spinal level) were analyzed in the frontal plane using inverse dynamics analyses on over-ground gait data collected at self-selected walking speeds (∼1.3m/s). Results Compared with uninjured controls, 4 distinctly larger positive phases of mediolateral joint power at L5/S1 were evident in persons with transfemoral amputation, occurring before and after each heel strike. Total generation energies throughout the gait cycle were also larger (P<.001 among persons with transfemoral amputation than uninjured controls> Conclusions Larger positive phases of joint power at L5/S1 in the frontal plane support previous suggestions that persons with transfemoral amputation use a more active mediolateral trunk movement strategy, although such an active trunk movement strategy with transfemoral amputation may contribute to higher metabolic energy expenditures and low back pain risk. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999314009289 |
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