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Int J Sports Med 2023; 44(01): 56-63
DOI: 10.1055/a-1930-5462
Training & Testing

Manipulation of Stroke Rate in Swimming: Effects on Oxygen Uptake Kinetics

Marcos Franken
1   Aquatic Sports Research Group, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
2   Department of Health Sciences, Universidade Regional Integrada do Alto Uruguai e das Missões, Santiago, Brazil
,
Pedro Figueiredo
3   Physical Education Department, College of Education, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
4   Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, Vila Real, Portugal
,
Ricardo De Assis Correia 
1   Aquatic Sports Research Group, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
,
Wellington Gomes Feitosa
1   Aquatic Sports Research Group, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
5   Centro de Ciências da Saúde, Universidade Estadual do Ceará, Fortaleza, Brasil, Universidade Estadual do Ceará, Fortaleza, Brazil
,
Caetano Decian Lazzari
6   Biomechanics Laboratory, Universidade Federal de Santa Catarina, Florianópolis, Brazil
7   Centro de Desportos, Universidade Federal de Santa Catarina, Florianopolis, Brazil
,
Fernando Diefenthaeler 
6   Biomechanics Laboratory, Universidade Federal de Santa Catarina, Florianópolis, Brazil
7   Centro de Desportos, Universidade Federal de Santa Catarina, Florianopolis, Brazil
,
Flávio Souza Castro
1   Aquatic Sports Research Group, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
› Institutsangaben Funding This work was funded by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001 and National Council for Scientific and Technological Development (CNPq).
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Abstract

The study aimed to assess the effect of different front crawl stroke rates (SRs) in the oxygen uptake (̇VO2) kinetics and ̇VO2 peak, the total time to exhaustion (TTE), and blood lactate concentration ([La]) at 95% of the 400-m front crawl test (T400) mean speed (S400). Twelve endurance swimmers performed a T400 and four trials at 95% of the S400: (i) free SR, (ii) fixed SR (100% of the average free SR trial), (iii) reduced SR (90% of the average free SR trial), and (iv) increased SR (110% of the average free SR trial). ̇VO2 was accessed continuously with breath-by-breath analysis. The results highlighted: (i) the time constant at increased SR (13.3±4.2 s) was lower than in the reduced SR condition (19.5±2.6 s); (ii) the amplitude of the primary phase of ̇VO2 kinetics in the fixed SR (44.0±5.8 ml·kg-1·min-1) was higher than in the increased SR condition (39.5±6.4 ml·kg-1·min-1); and (iii) TTE was lower in the fixed SR (396.1±189.7 s) than the increased SR condition (743.0±340.0 s). The results indicate that controlled SR could be considered a swimming training strategy, focusing on physiological parameters overload.

Key words

stroke cadence - swimmers - physiology - sports assessment - performance


Publikationsverlauf

Eingereicht: 12. März 2022

Angenommen: 23. August 2022

Accepted Manuscript online:
24. August 2022

Artikel online veröffentlicht:
04. November 2022

© 2022. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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