51. Aerobic Capacity With Hybrid FES Rowing in Spinal Cord Injury: Comparison With Arms-Only Exercise and Preliminary Findings With Regular Training.
- Author
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Taylor, J. Andrew, Picard, Glen, and Widrick, Jeffrey J.
- Subjects
SPINAL cord injuries ,ROWING training ,AEROBIC capacity ,ELECTRIC stimulation ,EXERCISE tests ,OXYGEN consumption ,BODY movement - Abstract
Objective: To determine the magnitude and range of increases in peak aerobic capacity with hybrid–functional electrical stimulation (FES) rowing versus arms-only rowing in persons with spinal cord injury. Design: Comparison of graded exercise tests for peak responses during FES rowing and arms-only rowing. Preliminary data on adaptations to FES row training were gathered in a subset of individuals. Setting: Outpatient cardiovascular research laboratory. Participants: Six male patients with spinal cord injury (T4-T9, American Spinal Injury Association class A). Methods or Intervention: Arms-only rowing was compared with FES rowing, in which the person who is exercising synchronizes the voluntarily controlled upper body movement with the FES-controlled leg movement via stimulation to the paralyzed leg muscles. A subgroup (n = 3) completed at least 6 months of a progressive FES row training exercise program with graded exercise tests every 6 months. Main Outcome Measurements: Peak oxygen consumption, peak ventilation, peak respiratory exchange ratio, peak heart rate, and peak oxygen pulse. Results: Peak oxygen consumption was greater during FES rowing than during arms-only rowing (20.0 ± 1.9 mL/kg/min versus 15.7 ± 1.5 mL/kg/min, P = .01). Peak ventilation was similar, whereas peak respiratory exchange ratio and peak heart rate tended to be lower (P = .14 and P = .19, respectively). As a result, oxygen pulse was greater by 35% during FES rowing. Two of the three persons who completed at least 6 months of FES row training demonstrated increases in aerobic capacity greater than those previously observed in able-bodied individuals. Conclusions: FES rowing may provide a more robust exercise stimulus for persons with spinal cord injury than most options currently available because of the greater aerobic demand. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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