Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers
The purpose of this study was to investigate the relationship between swimming speed, intra-cycle variation of horizontal speed of displacement (dv), and Froude efficiency (ηF) in front-crawl during three consecutive stroke cycles. The sample consisted of 15 boys aged 16.07 ± 0.77 years and 15 girls...
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| Format: | Article |
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PeerJ Inc.
2023-10-01
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| Series: | PeerJ |
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| Online Access: | https://peerj.com/articles/16019.pdf |
| _version_ | 1797421370709114880 |
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| author | Mafalda P. Pinto Daniel A. Marinho Henrique P. Neiva Jorge E. Morais |
| author_facet | Mafalda P. Pinto Daniel A. Marinho Henrique P. Neiva Jorge E. Morais |
| author_sort | Mafalda P. Pinto |
| collection | DOAJ |
| description | The purpose of this study was to investigate the relationship between swimming speed, intra-cycle variation of horizontal speed of displacement (dv), and Froude efficiency (ηF) in front-crawl during three consecutive stroke cycles. The sample consisted of 15 boys aged 16.07 ± 0.77 years and 15 girls aged 15.05 ± 1.07 years. Swimming speed, dv and ηF were measured during a 25 m front-crawl trial. Three consecutive stroke cycles were measured. Swimming speed showed a non-significant stroke-by-stroke effect (F = 2.55, p = 0.087, η2 = 0.08), but a significant sex effect (F = 90.46, p < 0.001, η2 = 0.76). The dv and ηF had the same trend as the swimming speed for the stroke-by-stroke effect, but a non-significant sex effect (p > 0.05). The Spearman correlation matrix between swimming speed and dv, and swimming speed and ηF showed non-significant correlations for the three stroke cycles in both sexes. However, the tendency of the former was not always inverse, and the latter was not always direct. Coaches and swimmers need to be aware that lower dvs are not always associated with faster swimming speeds and vice-versa, and that ηF is a predictor of swimming speed, not dv. |
| first_indexed | 2024-03-09T07:16:12Z |
| format | Article |
| id | doaj.art-1313781b5ed545cea6b5e1926501d7df |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T07:16:12Z |
| publishDate | 2023-10-01 |
| publisher | PeerJ Inc. |
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| spelling | doaj.art-1313781b5ed545cea6b5e1926501d7df2023-12-03T08:30:22ZengPeerJ Inc.PeerJ2167-83592023-10-0111e1601910.7717/peerj.16019Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmersMafalda P. Pinto0Daniel A. Marinho1Henrique P. Neiva2Jorge E. Morais3Department of Sport Sciences, University of Beira Interior, Covilhã, PortugalDepartment of Sport Sciences, University of Beira Interior, Covilhã, PortugalDepartment of Sport Sciences, University of Beira Interior, Covilhã, PortugalResearch Centre in Sports, Health and Human Development (CIDESD), Covilhã, PortugalThe purpose of this study was to investigate the relationship between swimming speed, intra-cycle variation of horizontal speed of displacement (dv), and Froude efficiency (ηF) in front-crawl during three consecutive stroke cycles. The sample consisted of 15 boys aged 16.07 ± 0.77 years and 15 girls aged 15.05 ± 1.07 years. Swimming speed, dv and ηF were measured during a 25 m front-crawl trial. Three consecutive stroke cycles were measured. Swimming speed showed a non-significant stroke-by-stroke effect (F = 2.55, p = 0.087, η2 = 0.08), but a significant sex effect (F = 90.46, p < 0.001, η2 = 0.76). The dv and ηF had the same trend as the swimming speed for the stroke-by-stroke effect, but a non-significant sex effect (p > 0.05). The Spearman correlation matrix between swimming speed and dv, and swimming speed and ηF showed non-significant correlations for the three stroke cycles in both sexes. However, the tendency of the former was not always inverse, and the latter was not always direct. Coaches and swimmers need to be aware that lower dvs are not always associated with faster swimming speeds and vice-versa, and that ηF is a predictor of swimming speed, not dv.https://peerj.com/articles/16019.pdfSwimmingMaximal trialsMotor behaviorEfficiencyTechnique |
| spellingShingle | Mafalda P. Pinto Daniel A. Marinho Henrique P. Neiva Jorge E. Morais Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers PeerJ Swimming Maximal trials Motor behavior Efficiency Technique |
| title | Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers |
| title_full | Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers |
| title_fullStr | Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers |
| title_full_unstemmed | Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers |
| title_short | Relationship between swimming speed, intra-cycle variation of horizontal speed, and Froude efficiency during consecutive stroke cycles in adolescent swimmers |
| title_sort | relationship between swimming speed intra cycle variation of horizontal speed and froude efficiency during consecutive stroke cycles in adolescent swimmers |
| topic | Swimming Maximal trials Motor behavior Efficiency Technique |
| url | https://peerj.com/articles/16019.pdf |
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