Race analysis and determination of stroke frequency - stroke length combinations during the 50-m freestyle event
(Wettkampfanalyse und Bestimmung der Schlagfrequenz-Schlaglängen-Kombinationen beim 50-M-Freistil-Wettbewerb)
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 swimmers (2019) and 95 seniors (2021) competing in the 50-m long course meter LEN Championships were analyzed. The t-test independent samples (p = 0.05) were used to compare juniors and seniors. The SF and SL combinations on swim speed were explored using three-way ANOVAs. Senior swimmers were significantly 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 categorization (p < 0.001) by stroke length and stroke frequency in each race section. It was possible to model several SF-SL combinations 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 despite the 50-m event being an all-out bout, several SF-SL combinations were observed (independently for juniors and seniors), and they differ between race sections.
Key Points
- The fastest eight seniors did not follow the same combinations of the entire group, and juniors presented an opposite trend.
- This indicates that seniors have higher variability than juniors during the 50-m freestyle event seeking to find and customize the combination that is more effective for them.
- Juniors follow a pre-set strategy, which does not change so much among them.
- Coaches and swimmers must be aware that they might have to adapt themselves since it is not possible to race a given event in the same way in different moments of their swimming career.
© Copyright 2023 Journal of Sports Science & Medicine. Department of Sports Medicine - Medical Faculty of Uludag University. Alle Rechte vorbehalten.
Schlagworte: | Schwimmen männlich Wettkampf Analyse Bewegung Biomechanik Leistung Klassifizierung |
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Notationen: | Ausdauersportarten |
Tagging: | Schlag |
DOI: | 10.52082/jssm.2023.156 |
Veröffentlicht in: | Journal of Sports Science & Medicine |
Veröffentlicht: |
2023
|
Jahrgang: | 22 |
Heft: | 1 |
Seiten: | 156 - 165 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |