Received: 18-10-2016 -- Accepted: 27-10-2017 --
Published (online): 01-12-2017
The aims of this study were to investigate whether land-based and tethered swimming strength tests can explain swimming performance in 200-meter front crawl and, whether these tests were able to identify bilateral symmetry in force production. In the first session, eighteen swimmers completed a maximum effort 200 m front crawl swim (swimming performance) and 15 seconds maximal effort tethered front crawl swim. In the second session, participants performed the upper extremity isometric strength test. Peak force production of tethered swimming and isometric strength tests were significantly correlated for the strongest and weakest sides (r = 0.58 and r = 0.63, respectively; p < 0.05), but only peak force production during tethered swimming correlated with 200 m swimming performance time (r = -0.55, p < 0.05). Bilateral asymmetries in peak force and rate of force development were similar between the tethered swimming and isometric strength tests (peak force: 13%, p = 0.24; rate of force development: 15%, p = 0.88) However, both tests detected significant difference of peak force and rate of force development between body sides. The tethered swimming test can partially explain the 200 m front crawl swimming performance. In addition, the land-based and tethered swimming tests may be used to identify bilateral asymmetry of swimming.
isometric strength, swimmers, kinetics
The results of this study reinforce the notion that strength measured on land is a poor predictor of the swimming performance
In contrast, the ability to generate maximum force during a tethered swim, a condition more analagous to free swimming, is a significant predictor of swimming performance.
It is therefore recommended that simple land- and water-based strength tests, as described in this study, can be routinely used to monitor swimmers’ asymmetry strength status.
Karini B. dos Santos, Paulo C. Barauce Bento, Gleber Pereira, Carl Payton, André L.F. Rodacki,
Front Crawl Swimming Performance and Bi-Lateral Force Asymmetry during Land-Based and Tethered Swimming Tests.
Journal of Sports Science and Medicine(16), 574 - 580.
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