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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: A newly developed hand rim for wheelchair tennis improves propulsion technique and efficiency in able-bodied novices.
    Author: Rietveld T, Vegter RJK, van der Woude LHV, de Groot S.
    Journal: Appl Ergon; 2022 Oct; 104():103830. PubMed ID: 35751939.
    Abstract:
    A new wheelchair tennis hand rim was developed, having a larger contact area and higher friction. How does this new hand rim compare to a regular hand rim regarding submaximal propulsion with a tennis racket during practice in novices? Twenty-four able-bodied novices (12 Regular Rim, 12 New Rim) completed a one-day experiment: pre-test, three practice-sessions and a post-test of 3 × 4 min each on a wheelchair ergometer (1.11 m/s, 7W). The New Rim group compared to the Regular Rim group, had a lower negative work per cycle (-0.83J vs. -2.06J, p = 0.01) at the post-test. There was a significantly larger increase in mechanical efficiency between the pre- and post-test in the New Rim group (2.3-3.4% vs. 2.1-2.5%, p = 0.02) compared to the Regular Rim group. The new rim led to a more ergonomic propulsion technique, with a reduction in negative power and higher mechanical efficiency between the pre- and post-test at submaximal propulsion.
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