Open AccessNovel paddle stroke analysis for elite slalom kayakers: Relationship with force parameters
Author(s) -
Leonardo Henrique Dalcheco Messias,
Filipe Antônio de Barros Sousa,
Ivan Gustavo Masselli dos Reis,
Homero Gustavo Ferrari,
Cláudio Alexandre Gobatto,
Camila Caputo Saldanha Serra,
Marcelo Papoti,
Fúlvia de Barros Manchado-Gobatto
Publication year - 2018
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0192835
Subject(s) - paddle , video recording , significant difference , mathematics , impulse (physics) , elite , simulation , physical medicine and rehabilitation , medicine , statistics , computer science , physics , computer graphics (images) , quantum mechanics , operating system , politics , political science , law
This study was divided into two complementary parts. In Part 1, we proposed a novel paddle strokes analysis based on the force signal from a 30-s all-out tethered test; and compared these results with video recordings. In Part 2, we investigated the relationship between force data from the same test with paddle stroke results from both methods. Eleven male elite slalom kayakers (Brazilian national team) were evaluated. The tethered test was conducted for force parameters analysis (peak-force, mean-force, impulse). Video recording analysis was conducted, and the performed strokes (V.Number Paddle ) was counted and frequency (V.Frequency Paddle ) calculated by the V.Number Paddle divided by 30 (i.e. total time of test). The new method consisted of performed strokes and frequency achievement from a load cell force signal analysis (S.Number Paddle and S.Frequency Paddle , respectively). Paired test-t did not show difference between methods results, but significant correlations were only obtained for the number of paddle strokes. Force parameters were only correlated with S.Number Paddle and S.Frequency Paddle . Overall, considering the theoretical and practical application, we propose that the new method should be used as an alternative to the video recording.