摘要
This study examined acute effects of inspiratory resistive loading (IRL) during rest intervals on sprint interval exercise (SIE) performance. In a randomized crossover design, nine collegiate basketball players performed IRL (15 cmH2O) or passive recovery (CON) at 5-min rest intervals during and immediately after 6 sets of a 30-s SIE test. Performance, muscular oxygenation of vastus lateralis, blood lactate and pH were measured at each condition. Blood lactate at 5-min (−20.5 %) and 20-min (−21.3 %) after SIE were significantly lower in IRL than in CON. The pH at 5-min after SIE was significantly higher in IRL than in CON (+0.8 %, p < 0.05). However, the total work in IRL was significantly lower than in CON (−2.7 %, p < 0.05). Average changes in total hemoglobin at rest intervals in IRL were significantly lower than in CON (−34.5 %, p < 0.05). The IRL could attenuate exercise-induced metabolic acidosis; however, the decreased blood flow at rest intervals might increase the physical challenge in SIE.
原文 | 英語 |
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文章編號 | 103531 |
期刊 | Respiratory Physiology and Neurobiology |
卷 | 282 |
DOIs | |
出版狀態 | 已發佈 - 2020 11月 |
ASJC Scopus subject areas
- 一般神經科學
- 生理學
- 肺和呼吸系統醫學