Faculty of Health Sciences, University Isabel I, Burgos,Spain.
Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona, Barcelona,Spain.
Int J Sports Physiol Perform. 2023 Feb 8;18(3):320-325. doi: 10.1123/ijspp.2022-0238. Print 2023 Mar 1.
To analyze the effect of inspiratory muscle training (IMT) on the maximal inspiratory mouth pressure (MIP) and performance of elite swimmers.
Eight participants performed a 3000-m swimming test (T-3000), followed by blood lactate measurements at 1 and 5 minutes postexercise.. The testing protocol was carried out before and after 6 weeks of IMT, in which a high-volume IMT group (HV-IMT) (n = 4) performed IMT twice a day-in the morning in a seated position and in the afternoon in a concurrent session of IMT and core muscle training. Also, a low-volume IMT group (LV-IMT) (n = 4) performed IMT in the morning session only.
After the intervention, both groups improved their MIP, HV-IMT (132.75 [27.42] to 156.75 [21.88] cmH2O; P = .010; d = 0.967) and LV-IMT (149.25 [22.82] to 171.50 [23.74] cmH2O; P = .013; d = 0.955), without a significant difference between groups (P = .855). Regarding swimming performance, there were no changes between groups in the T-3000 (P = .472) or lactate removal rate (P = .104).
IMT increased inspiratory muscle strength in elite swimmers, but there was no association or meaningful impact on swimming performance.
分析吸气肌训练（IMT）对最大吸气口腔压力（MIP）和优秀游泳运动员表现的影响。
8 名参与者进行了 3000 米游泳测试（T-3000），随后在运动后 1 分钟和 5 分钟测量血乳酸。测试方案在 IMT 前和 6 周后进行，其中高容量 IMT 组（HV-IMT）（n = 4）每天进行两次 IMT-上午在坐姿中进行，下午在 IMT 和核心肌肉训练的同时进行。此外，低容量 IMT 组（LV-IMT）（n = 4）仅在上午进行 IMT。
干预后，两组的 MIP 均得到改善，HV-IMT（132.75 [27.42] 至 156.75 [21.88] cmH2O；P =.010；d = 0.967）和 LV-IMT（149.25 [22.82] 至 171.50 [23.74] cmH2O；P =.013；d = 0.955），两组之间无显着差异（P =.855）。关于游泳表现，两组的 T-3000（P =.472）或乳酸清除率（P =.104）均无变化。
IMT 增加了优秀游泳运动员的吸气肌力量，但与游泳表现之间没有关联或有意义的影响。
