Arend Mati, Kivastik Jana, Talts Jaak, Mäestu Jarek
Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, 51014 Tartu, Estonia.
Sports Medicine and Rehabilitation Clinic, Tartu University Hospital, 50406 Tartu, Estonia.
Sports (Basel). 2021 Mar 22;9(3):42. doi: 10.3390/sports9030042.
The aim of the study was to investigate the effect of an inspiratory muscle warm-up on the VO kinetics during submaximal intensity ergometer rowing. Ten competitive male rowers (age 23.1 ± 3.8 years; height 188.1 ± 6.3 cm; body mass 85.6 ± 6.6 kg) took part in this investigation. A submaximal constant intensity (90% P) rowing test to volitional exhaustion was carried out twice with the standard rowing warm-up (Test 1) and with the standard rowing warm-up with additional specific inspiratory muscle warm-up of two sets of 30 repetitions at 40% maximal inspiratory pressure (Test 2). We found a significant correlation between time constant () and the VO value at 400 s in Test 1 (r = 0.78; < 0.05); however, no correlation was found between those parameters in Test 2. In addition, we found a positive association between VO from the incremental rowing test and from Test 1 (r = 0.71; < 0.05), whereas VO did not correlate with from Test 2. Adding inspiratory muscle warm-up of 40% maximal inspiratory pressure to regular rowing warm-up had no significant effect on oxygen consumption kinetics during submaximal rowing tests.
本研究的目的是调查吸气肌热身对次最大强度测力计划船运动中VO动力学的影响。十名有竞争力的男性赛艇运动员（年龄23.1±3.8岁；身高188.1±6.3厘米；体重85.6±6.6千克）参与了这项调查。分别在标准划船热身（测试1）和标准划船热身基础上增加两组在40%最大吸气压力下每组30次重复的特定吸气肌热身（测试2）的情况下，进行两次次最大强度恒定强度（90%P）划船测试至自愿疲劳。我们发现测试1中时间常数（）与400秒时的VO值之间存在显著相关性（r = 0.78；<0.05）；然而，在测试2中这些参数之间未发现相关性。此外，我们发现递增划船测试中的VO与测试1中的之间存在正相关（r = 0.71；<0.05），而VO与测试2中的不相关。在常规划船热身中增加40%最大吸气压力的吸气肌热身对次最大划船测试期间的耗氧动力学没有显著影响。
