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Titre : | Relation Between Aerobic Capacity and Walking Ability in Older Adults With a Lower-Limb Amputation (2013) |
Auteurs : | Daphne Wezenberg ; Lucas H. van der Woude ; X. Faber willimijn ; et al. |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2013/9, 2013) |
Article en page(s) : | pp. 1714-1720 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Amputation ; Effort physique ; Rééducation et réadaptation |
Mots-clés: | Artificial limbs ; Membres artificiels ; Physical exertion ; Physical fitness ; Aptitude physique ; Walking ; Marche à pied |
Résumé : |
Objectives To determine the relative aerobic load, walking speed, and walking economy of older adults with a lower-limb prosthesis, and to predict the effect of an increased aerobic capacity on their walking ability. Design Cross-sectional. Setting Human motion laboratory at a rehabilitation center. Participants Convenience sample of older adults (n=36) who underwent lower-limb amputation because of vascular deficiency or trauma and able-bodied controls (n=21). Interventions Not applicable. Main Outcome Measures Peak aerobic capacity and oxygen consumption while walking were determined. The relative aerobic load and walking economy were assessed as a function of walking speed, and a data-based model was constructed to predict the effect of an increased aerobic capacity on walking ability. Results People with a vascular amputation walked at a substantially higher (45.2%) relative aerobic load than people with an amputation because of trauma. The preferred walking speed in both groups of amputees was slower than that of able-bodied controls and below their most economical walking speed. We predicted that a 10% increase in peak aerobic capacity could potentially result in a reduction in the relative aerobic load of 9.1%, an increase in walking speed of 17.3% and 13.9%, and an improvement in the walking economy of 6.8% and 2.9%, for people after a vascular or traumatic amputation, respectively. Conclusions Current findings corroborate the notion that, especially in people with a vascular amputation, the peak aerobic capacity is an important determinant for walking ability. The data provide quantitative predictions on the effect of aerobic training; however, future research is needed to experimentally confirm these predictions. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/journal/archives-of-physical-medicine-and-rehabilitation |