{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T22:28:13Z","timestamp":1773959293400,"version":"3.50.1"},"reference-count":68,"publisher":"Human Kinetics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,4,1]]},"abstract":"<jats:p><jats:italic><jats:bold>Purpose<\/jats:bold>:<\/jats:italic> To determine the reliability and validity of a novel trunk maximal isometric force assessment involving 7 different tasks with 200-m times for elite sprint flat-water kayakers. <jats:italic><jats:bold>Methods<\/jats:bold>:<\/jats:italic> Ten elite sprint flat-water kayakers performed a series of maximal isometric voluntary contractions (MVCs) on 2 separate days to assess reliability. MVC force was assessed as the participants sat on a modified kayak ergometer and applied their maximal isometric force to a uniaxial load cell during 7 different tasks. The 7 tasks of interest were a seated trunk-forward flexion, bilateral (left and right) rotational pulls, bilateral rotational pushes, and a sport-specific bilateral kayak-stroke simulation. Twenty elite flat-water kayak athletes (10 male and 10 female) participated in the validity portion by completing the series of tasks in conjunction with a 200-m race. <jats:italic><jats:bold>Results<\/jats:bold>:<\/jats:italic> MVC force values ranged from 84 to 800\u00a0N across all participants and all tasks. The average coefficient of variation of the 7 tasks ranged from 2.4% to 7.7%. Regression analysis showed Pearson correlations ranging from \u2212.84 to \u2212.22 for both absolute and relative values with 200-m performance times. <jats:italic><jats:bold>Conclusions<\/jats:bold>:<\/jats:italic> MVC force measured in each task was considered reliable as a small degree of variance between trials was found. The summation of the 7 trunk scores showed very strong correlations with on-water performance, indicating that this assessment is valid for elite sprint kayakers.<\/jats:p>","DOI":"10.1123\/ijspp.2018-0428","type":"journal-article","created":{"date-parts":[[2018,10,9]],"date-time":"2018-10-09T16:47:50Z","timestamp":1539103670000},"page":"486-492","source":"Crossref","is-referenced-by-count":12,"title":["Reliability and Validity of a Novel Trunk-Strength Assessment for High-Performance Sprint Flat-Water Kayakers"],"prefix":"10.1123","volume":"14","author":[{"given":"Darren","family":"Steeves","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leo J.","family":"Thornley","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joshua A.","family":"Goreham","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew 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