Logo for the Journal of Rehab R and D

Volume 45 Number 9, 2008
   Pages 1295 — 1302

Abstract - Consistency of within-cycle torque distribution pattern in hand cycling

Joeri Verellen, MSc;* Christophe Meyer, MSc; Sofie Reynders, MSc; Debbie Van Biesen, MSc; Yves
Vanlandewijck, PhD

Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Katholieke Universiteit Leuven, Leuven, Belgium

Abstract — This investigation studied the consistency of the within-cycle torque pattern in hand cycling (1) in subsequent cycles, (2) between different individuals, (3) between different power output levels, and (4) with respect to fatigue. Ten nondisabled male participants performed a progressive peak arm crank ergometry test; a number of 5-minute submaximal tests at 10, 20, 30, and 40 W; and one 15-minute submaximal test at 80% to 90% of their peak heart rate. A hand cycle unit attached to a computerized motor allowed for power output adjustments and registered position and torque. Variation coefficients were calculated and averaged for evaluation of the pattern consistency. Values were 2.7% to 3.9% for subsequent cycles, 3.2% to 5.3% between participants, 2.8% between different power output levels, and 3.1% with respect to fatigue. These results indicate a consistent within-cycle torque distribution pattern for subsequent cycles that is minimally influenced by factors such as power output and fatigue.

Key words: arm crank propulsion, biomechanics, force generation, handbike, health, kinetics, performance, rehabilitation, sports, torque.

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