Biomechanics of simulated versus natural cross-country sit skiing
Rosso, V., Gastaldi, L., Rapp, W., Lindinger, S., Vanlandewijck, Y., & Linnamo, V. (2017). Biomechanics of simulated versus natural cross-country sit skiing. Journal of Electromyography and Kinesiology, 32, 15-21. https://doi.org/10.1016/j.jelekin.2016.11.002
Published inJournal of Electromyography and Kinesiology
Rapp, W. |
© 2016 Elsevier Ltd. This is a final draft version of an article whose final and definitive form has been published by Elsevier. Published in this repository with the kind permission of the publisher.
The purpose of this study was to investigate the biomechanics of cross-country sit-skiing in simulated and natural skiing. Thirteen international level athletes participated in a ski ergometer test (simulated conditions) and a test on snow in a ski-tunnel (natural conditions) using their personal sit-ski. Tests in both conditions were performed at individual maximal speed. When comparing the two conditions the main results were: (1) maximal speed in simulated conditions was lower (p < 0.05) but correlated well with the natural condition (r = 0.79, p < 0.001); (2) no differences in pole force variables were found; peak force (r = 0.77, p < 0.01) and average force (r = 0.78, p < 0.01) correlated well; (3) recovery time and time to peak did not differ and time to impact correlated with each other (r = 0.88, p < 0.01); (4) no differences were found in peak electromyography (EMG) and average EMG for Triceps, Pectoralis, and Erector Spinae; Rectus Abdominis did not differ in peak. EMG peak and average EMG of all muscles were correlated between the two conditions (r = 0.65–0.94; p < 0.05–0.01). Although some differences were observed, this study demonstrated that technical skill proficiency in natural and simulated cross-country skiing is comparable from a force production and muscle activation perspective. ...
PublisherElsevier Ltd; International Society of Electrophysiology and Kinesiology
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