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Titre : | Eccentric Arm Cycling: A Potential Exercise for Wheelchair Users (2019) |
Auteurs : | Lydia L. Lytle ; Jennifer L. Dannenbring ; Matthew A. Kilgas |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 100, n° 5, 2019) |
Article en page(s) : | p. 914-922 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Aptitude physique ; Exercice physique ; Rééducation et réadaptation ; Traumatismes de la moelle épinière |
Résumé : |
Objective
To compare metabolic, cardiorespiratory, and perceptual responses to acute eccentric and traditional concentric arm cycling in a cohort of wheelchair users. Design Single-group repeated measures. Setting Exercise physiology laboratory. Participants A convenience sample of 7 manual wheelchair users (45±15 y; 87±21 kg; 1.8±0.1 m; time in wheelchair 17±14 y) volunteered. Interventions Participants performed 5-minute trials of eccentric and concentric arm cycling at (1) isometabolic rate (35% of peak oxygen consumption) and (2) isopower output (80W). Exercise trials were performed on an eccentric/concentric arm cycle ergometer that integrated with a personal wheelchair. Main Outcome Measures Primary measures included power output, oxygen consumption, heart rate, ventilation, blood lactate, and perceived exertion. Secondary measures assessed included perceived muscle soreness, likability, frequency of use, and duration of use. Results At isometabolic rate, power production during eccentric arm cycling was ∼3× greater than concentric arm cycling (80±36 vs 26±10 W; P<.01 when exercising at isopower output oxygen consumption during eccentric arm cycling was that of concentric vs l p=".03)." heart rate and perceived exertion were also substantially lower muscle soreness assessed hours postexercise minimal cm preference scores anticipated frequency duration use did not differ between>.05). Conclusion Eccentric arm cycling provided a metabolically efficient (high-force, low-energy cost) and usable (wheelchair accessible, safe, likable) exercise for wheelchair users. Implementation of eccentric arm cycling with this population is promising but additional research is needed to confirm this possibility. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999318315193 |