Eccentric Arm Cycling: A Potential Exercise for Wheelchair Users
| Autor: | Steven J. Elmer, Lydia Lytle, Jennifer L. Dannenbring, Matthew A. Kilgas |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male 030506 rehabilitation medicine.medical_specialty Time Factors Physical fitness Population Physical Exertion Physical Therapy Sports Therapy and Rehabilitation Concentric Upper Extremity 03 medical and health sciences Young Adult 0302 clinical medicine Wheelchair Physical medicine and rehabilitation Oxygen Consumption Heart Rate medicine Eccentric Humans Disabled Persons Lactic Acid Exercise physiology education Exercise Aged education.field_of_study business.industry Rehabilitation Repeated measures design Cardiorespiratory fitness Patient Preference Myalgia Middle Aged Wheelchairs Patient Compliance Female 0305 other medical science business Pulmonary Ventilation 030217 neurology & neurosurgery Physical Conditioning Human |
| Zdroj: | Archives of physical medicine and rehabilitation. 100(5) |
| ISSN: | 1532-821X |
| Popis: | To compare metabolic, cardiorespiratory, and perceptual responses to acute eccentric and traditional concentric arm cycling in a cohort of wheelchair users.Single-group repeated measures.Exercise physiology laboratory.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.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.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.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 ∼1/2 that of concentric arm cycling (0.66±0.15 vs 1.30±0.65 L/min; P=.03). Heart rate and perceived exertion were also substantially lower during eccentric arm cycling (both P.05). Muscle soreness assessed 24-72 hours postexercise was minimal (1.0 cm). Preference scores and anticipated frequency and duration of use did not differ between eccentric arm cycling and concentric arm cycling (all P.05).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. |
| Databáze: | OpenAIRE |
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