Abstract
This study describes the responses of 20 paraplegic athletes (mean age: 26.8 ± 1.6years) to a continuous incremental workload test until exhaustion on an arm cranking ergometer (ACE) and on a wheelchair erogmeter (WCE). Both ergometers used the same electromagnetic braking device allowing a fair comparison between results. Tests were conducted at a 24 hour interval at the same time of the day. Oxygen uptake (VO2), heart rate (HR), workload (W), blood pressure (BP), Borg index, and mechanical efficiency (ME) were measured at every minute during the effort and the cool down periods of both tests. The purpose of this study was to analyse the different responses obtained on ACE and on WCE during maximal effort by paraplegics, and also to determine which ergometer permits the higher ME. Results indicate that paraplegics reached the same max HR on ACE and on WCE (97% of the predicted max HR). The lack of significant difference (p < 0.05) between ACE and WCE in terms of maximal values of VO2, VE and HR suggests that the subjects reached their maximal capacity on each test regardless of the type of ergometer. Nevertheless, W max (in Watts) was 26% higher on ACE than on WCE. Maximal ME values were respectively 16% and 11.6% on ACE and WCE. Results suggest that ergometers and protocol used in this study are appropriate to measure physiological responses of paraplegic athletes during arm cranking and wheelchair exercise without excessive or early arm fatigue.
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Martel, G., Noreau, L. & Jobin, J. Physiological responses to maximal exercise on arm cranking and wheelchair ergometer with paraplegics. Spinal Cord 29, 447–456 (1991). https://doi.org/10.1038/sc.1991.61
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DOI: https://doi.org/10.1038/sc.1991.61
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