Mechanical and metabolic responses during high-intensity training in elite 800-m runners
The purpose of this study was to describe the mechanical and metabolic responses of a typical high-intensity training session in high-level 800-m athletes. Nine male high- level 800-m athletes (personal best 1:43-1:56 min:ss) performed a typical high-intensity interval training session consisting in...
| Autores: | , |
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| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/166724 |
| Acesso em linha: | https://hdl.handle.net/11441/166724 https://doi.org/10.1055/a-1273-8564 |
| Access Level: | acceso abierto |
| Palavra-chave: | Interval-training Performance Lactate Countermovement jump Middle- distance running |
| Resumo: | The purpose of this study was to describe the mechanical and metabolic responses of a typical high-intensity training session in high-level 800-m athletes. Nine male high- level 800-m athletes (personal best 1:43-1:56 min:ss) performed a typical high-intensity interval training session consisting in 5x200-m, with 4 min rest. Countermovement jump and blood lactate were measured at rest and after each running bout. Running times, ground contact times and stride length were also measured. Running times and lactate (p<0.01) progressively increased from the first to the last running bout. Jump height (p<0.01) and stride length (p<0.05) progressively decreased from the first running bout to the last. A significant negative relationship (p<0.001; r =-0.83) was found between the individual values of jumping height and blood lactate concentration; and a significant positive relationship (p<0.01; r=0.67) was observed between the time in 200-m and the contact times. In conclusion, the results demonstrated that the typical training session performed by 800-m athletes produced a high level of fatigue showed up by significant alterations on the mechanical and metabolic response. The impairments observed on the mechanical and metabolic parameters may indirectly reflect a state of energy deficit of the muscle contractile machinery and a reduction on the force-generating capacity. |
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