200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Motriz (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000101612 |
Resumo: | Abstract Aims: analyze kinematics, anthropometrics, and maturation during a training season in 12 y and underage-group swimmers, quantifying changes and estimating their contributions to the 200-m maximal front crawl time trial test (T200) (time trial/fixed distance), as an event representative of the swimming performance. Methods: Nineteen age-group swimmers (11 girls and 8 boys; age 10.0 ± 1.3 y and 10.6 ± 1.0 y) performed a T200 four times during the training season. Changes in kinematic and anthropometric variables throughout the season were calculated. We applied generalized estimating equations to compare the variables over the four experimental tests. Multiple linear regressions were applied to identify the most influential variables and the relative contribution of anthropometrics and kinematics to swimming performance of T200 at baseline (pre-season) and after (using delta values) each macrocycle. Results: Large improvements (d = 1.76) were observed in the T200's performance (from 85.5 ± 38.2 at pre-season to 175.2 ± 50.1 FINA points at the end season). A gender effect was not identified. Stroke rate, stroke length, and stroke index explained, respectively 59, 23, and 17% of the T200 performance changes along the season (R2 = 0.81; F = 26.9; p < 0.001; Durbin-Watson: 1.5). Anthropometric was not related to performance changes, with kinematic being the most determinant factor. Conclusion: Kinematical approaches must be carefully considered by coaches when planning 12 y and underage-group swimmers training programs. |
id |
UNESP-17_40d47574d18247b48d7ec7e001f66ac0 |
---|---|
oai_identifier_str |
oai:scielo:S1980-65742022000101612 |
network_acronym_str |
UNESP-17 |
network_name_str |
Motriz (Online) |
repository_id_str |
|
spelling |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effectsexerciseswimmingkinematicsanthropometricslongitudinal analysisAbstract Aims: analyze kinematics, anthropometrics, and maturation during a training season in 12 y and underage-group swimmers, quantifying changes and estimating their contributions to the 200-m maximal front crawl time trial test (T200) (time trial/fixed distance), as an event representative of the swimming performance. Methods: Nineteen age-group swimmers (11 girls and 8 boys; age 10.0 ± 1.3 y and 10.6 ± 1.0 y) performed a T200 four times during the training season. Changes in kinematic and anthropometric variables throughout the season were calculated. We applied generalized estimating equations to compare the variables over the four experimental tests. Multiple linear regressions were applied to identify the most influential variables and the relative contribution of anthropometrics and kinematics to swimming performance of T200 at baseline (pre-season) and after (using delta values) each macrocycle. Results: Large improvements (d = 1.76) were observed in the T200's performance (from 85.5 ± 38.2 at pre-season to 175.2 ± 50.1 FINA points at the end season). A gender effect was not identified. Stroke rate, stroke length, and stroke index explained, respectively 59, 23, and 17% of the T200 performance changes along the season (R2 = 0.81; F = 26.9; p < 0.001; Durbin-Watson: 1.5). Anthropometric was not related to performance changes, with kinematic being the most determinant factor. Conclusion: Kinematical approaches must be carefully considered by coaches when planning 12 y and underage-group swimmers training programs.Universidade Estadual Paulista2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000101612Motriz: Revista de Educação Física v.28 2022reponame:Motriz (Online)instname:Universidade Estadual Paulista (UNESP)instacron:UNESP10.1590/s1980-657420220001222info:eu-repo/semantics/openAccessFiori,Júlia MelloZacca,RodrigoCastro,Flávio Antônio de Souzaeng2022-09-23T00:00:00Zoai:scielo:S1980-65742022000101612Revistahttp://www.periodicos.rc.biblioteca.unesp.br/index.php/motrizPUBhttps://old.scielo.br/oai/scielo-oai.phpmotriz@rc.unesp.br||mauerber@rc.unesp.br||azanesco@rc.unesp.br1980-65741415-9805opendoar:2022-11-08T16:30:57.817757Motriz (Online) - Universidade Estadual Paulista (UNESP)true |
dc.title.none.fl_str_mv |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
title |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
spellingShingle |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects Fiori,Júlia Mello exercise swimming kinematics anthropometrics longitudinal analysis |
title_short |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
title_full |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
title_fullStr |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
title_full_unstemmed |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
title_sort |
200-m front crawl performance over a training season in 12 years and underage-group swimmers: growth and kinematics effects |
author |
Fiori,Júlia Mello |
author_facet |
Fiori,Júlia Mello Zacca,Rodrigo Castro,Flávio Antônio de Souza |
author_role |
author |
author2 |
Zacca,Rodrigo Castro,Flávio Antônio de Souza |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Fiori,Júlia Mello Zacca,Rodrigo Castro,Flávio Antônio de Souza |
dc.subject.por.fl_str_mv |
exercise swimming kinematics anthropometrics longitudinal analysis |
topic |
exercise swimming kinematics anthropometrics longitudinal analysis |
description |
Abstract Aims: analyze kinematics, anthropometrics, and maturation during a training season in 12 y and underage-group swimmers, quantifying changes and estimating their contributions to the 200-m maximal front crawl time trial test (T200) (time trial/fixed distance), as an event representative of the swimming performance. Methods: Nineteen age-group swimmers (11 girls and 8 boys; age 10.0 ± 1.3 y and 10.6 ± 1.0 y) performed a T200 four times during the training season. Changes in kinematic and anthropometric variables throughout the season were calculated. We applied generalized estimating equations to compare the variables over the four experimental tests. Multiple linear regressions were applied to identify the most influential variables and the relative contribution of anthropometrics and kinematics to swimming performance of T200 at baseline (pre-season) and after (using delta values) each macrocycle. Results: Large improvements (d = 1.76) were observed in the T200's performance (from 85.5 ± 38.2 at pre-season to 175.2 ± 50.1 FINA points at the end season). A gender effect was not identified. Stroke rate, stroke length, and stroke index explained, respectively 59, 23, and 17% of the T200 performance changes along the season (R2 = 0.81; F = 26.9; p < 0.001; Durbin-Watson: 1.5). Anthropometric was not related to performance changes, with kinematic being the most determinant factor. Conclusion: Kinematical approaches must be carefully considered by coaches when planning 12 y and underage-group swimmers training programs. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000101612 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000101612 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1980-657420220001222 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista |
publisher.none.fl_str_mv |
Universidade Estadual Paulista |
dc.source.none.fl_str_mv |
Motriz: Revista de Educação Física v.28 2022 reponame:Motriz (Online) instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Motriz (Online) |
collection |
Motriz (Online) |
repository.name.fl_str_mv |
Motriz (Online) - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
motriz@rc.unesp.br||mauerber@rc.unesp.br||azanesco@rc.unesp.br |
_version_ |
1788170937469763584 |