Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions
In swimming, the speed-time relationship provides the critical speed (CS) and the maximum distance that can be performed above CS (D′). During intermittent severe intensity exercise, a complete D′ depletion coincides with task failure, while a sub-CS intensity is required for D′ reconstitution. Ther...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-09-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphys.2022.952818/full |
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| author | João Antônio Gesser Raimundo Rafael Alves De Aguiar Felipe Domingos Lisbôa Guilherme Ribeiro Fabrizio Caputo |
| author_facet | João Antônio Gesser Raimundo Rafael Alves De Aguiar Felipe Domingos Lisbôa Guilherme Ribeiro Fabrizio Caputo |
| author_sort | João Antônio Gesser Raimundo |
| collection | DOAJ |
| description | In swimming, the speed-time relationship provides the critical speed (CS) and the maximum distance that can be performed above CS (D′). During intermittent severe intensity exercise, a complete D′ depletion coincides with task failure, while a sub-CS intensity is required for D′ reconstitution. Therefore, determining the balance D′ remaining at any time during intermittent exercise (D'BAL) could improve training prescription. This study aimed to 1) test the D'BAL model for swimming; 2) determine an equation to estimate the time constant of the reconstitution of D' (τD′); and 3) verify if τD′ is constant during two interval training sessions with the same work intensity and duration and recovery intensity, but different recovery duration. Thirteen swimmers determined CS and D′ and performed two high-intensity interval sessions at a constant speed, with repetitions fixed at 50 m. The duration of passive recovery was based on the work/relief ratio of 2:1 (T2:1) and 4:1 (T4:1). There was a high variability between sessions for τD' (coefficient of variation of 306%). When τD′ determined for T2:1 was applied in T4:1 and vice versa, the D'BAL model was inconsistent to predict the time to exhaustion (coefficient of variation of 29 and 28%). No linear or nonlinear relationships were found between τD′ and CS, possibly due to the high within-subject variability of τD'. These findings suggest that τD′ is not constant during two high-intensity interval sessions with the same recovery intensity. Therefore, the current D'BAL model was inconsistent to track D′ responses for swimming sessions tested herein. |
| first_indexed | 2024-04-12T18:19:10Z |
| format | Article |
| id | doaj.art-c9fffa1f68cd4f30a9a7e54a372913a9 |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-04-12T18:19:10Z |
| publishDate | 2022-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-c9fffa1f68cd4f30a9a7e54a372913a92022-12-22T03:21:30ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2022-09-011310.3389/fphys.2022.952818952818Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessionsJoão Antônio Gesser RaimundoRafael Alves De AguiarFelipe Domingos LisbôaGuilherme RibeiroFabrizio CaputoIn swimming, the speed-time relationship provides the critical speed (CS) and the maximum distance that can be performed above CS (D′). During intermittent severe intensity exercise, a complete D′ depletion coincides with task failure, while a sub-CS intensity is required for D′ reconstitution. Therefore, determining the balance D′ remaining at any time during intermittent exercise (D'BAL) could improve training prescription. This study aimed to 1) test the D'BAL model for swimming; 2) determine an equation to estimate the time constant of the reconstitution of D' (τD′); and 3) verify if τD′ is constant during two interval training sessions with the same work intensity and duration and recovery intensity, but different recovery duration. Thirteen swimmers determined CS and D′ and performed two high-intensity interval sessions at a constant speed, with repetitions fixed at 50 m. The duration of passive recovery was based on the work/relief ratio of 2:1 (T2:1) and 4:1 (T4:1). There was a high variability between sessions for τD' (coefficient of variation of 306%). When τD′ determined for T2:1 was applied in T4:1 and vice versa, the D'BAL model was inconsistent to predict the time to exhaustion (coefficient of variation of 29 and 28%). No linear or nonlinear relationships were found between τD′ and CS, possibly due to the high within-subject variability of τD'. These findings suggest that τD′ is not constant during two high-intensity interval sessions with the same recovery intensity. Therefore, the current D'BAL model was inconsistent to track D′ responses for swimming sessions tested herein.https://www.frontiersin.org/articles/10.3389/fphys.2022.952818/fullathletesperformancecritical velocitycritical powersevere domainaerobic capacity |
| spellingShingle | João Antônio Gesser Raimundo Rafael Alves De Aguiar Felipe Domingos Lisbôa Guilherme Ribeiro Fabrizio Caputo Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions Frontiers in Physiology athletes performance critical velocity critical power severe domain aerobic capacity |
| title | Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions |
| title_full | Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions |
| title_fullStr | Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions |
| title_full_unstemmed | Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions |
| title_short | Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions |
| title_sort | modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions |
| topic | athletes performance critical velocity critical power severe domain aerobic capacity |
| url | https://www.frontiersin.org/articles/10.3389/fphys.2022.952818/full |
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