Orientador(es)
Resumo(s)
The aims of this study were to: (1) analyze and compare the stroke
kinematics between junior and senior elite male swimmers in
every section of the race during the 50-m freestyle event, and; (2)
identify stroke frequency (SF)–stroke length (SL) combinations
on swim speed independently for junior and senior swimmers in
each section of the 50-m freestyle event. Eighty-six junior swim-
mers (2019) and 95 seniors (2021) competing in the 50-m long
course meter LEN Championships were analyzed. The t-test in-
dependent samples (p ≤ 0.05) were used to compare juniors and
seniors. The SF and SL combinations on swim speed were ex-
plored using three-way ANOVAs. Senior swimmers were signif-
icantly faster in the 50-m race than juniors (p < 0.001). Speed
presented the largest significant difference (p < 0.001) in section
S0-15 m (start until the 15th meter mark) being seniors fastest.
Both junior and senior swimmers revealed a significant categori-
zation (p < 0.001) by stroke length and stroke frequency in each
race section. It was possible to model several SF–SL combina-
tions for seniors and juniors in each section. The fastest swim
speed in each section, for seniors and juniors independently, was
achieved by a SF–SL combination that may not be the fastest SF
or the longest SL. Coaches and swimmers must be aware that de-
spite the 50-m event being an all-out bout, several SF–SL combi-
nations were observed (independently for juniors and seniors),
and they differ between race sections.
Descrição
Palavras-chave
Analysis Biomechanics Competition Performance
Contexto Educativo
Citação
Morais, J.E.; Barbosa, Tiago M.; Bragada, José A.; Nevill, Alan M.; Marinho, D.A. (2023). Race Analysis and Determination of Stroke Frequency: Stroke Length Combinations during the 50-M Freestyle Event. Journal of Sports Science and Medicine. ISSN 1303-2968. 22:1, p. 156-165
Editora
Journal of Sports Science and Medicine