The Relationship Between Selected Load-Velocity Profile Parameters and 50 m Front Crawl Swimming Performance

• DOI: 10.3389/fphys.2021.625411
• Publication Date: 2021-02-20T23:48:45Z
• Authors: Tomohiro Gonjo; Nikolai Njøs; Ola Eriksrud; Bjørn H. Olstad
• Keywords: Front crawl; Sprint

The purpose of the present study was to establish relationships between sprint front crawl performance and a swimming load-velocity profile. Fourteen male national-level swimmers performed 50 m semi-tethered with three progressive loads. recorded multi-camera system, which two-dimensional head displacement beginning each arm-stroke motion were quantified. Forward velocity (V 50m ), stroke length (SL) frequency (SF) quantified for cycle, mean value all cycles, excluding first last used analysis. From test, during cycles in mid-pool calculated plotted as function external load, linear regression line expressing relationship load established swimmer. intercepts axes plot defined theoretical maximum 0 ) (L ). Large very large correlations observed V variables derived from profiling; L (R = 0.632, p 0.015), normalized by body mass 0.743, 0.002), 0.698, 0.006), slope 0.541, < 0.046). No significant SL observed, suggesting that swimmer has his own strategy achieve highest velocity. findings suggest profiling can be assess swimming-specific strength capabilities related performance.