The Effect of Inspiratory Muscle Warm-Up on VO2 Kinetics during Submaximal Rowing

Mati Arend; Jana Kivastik; Jaak Talts; Jarek Mäestu

doi:10.3390/sports9030042

The Effect of Inspiratory Muscle Warm-Up on VO₂ Kinetics during Submaximal Rowing

Sports (Basel). 2021 Mar 22;9(3):42. doi: 10.3390/sports9030042.

Authors

Mati Arend^{1

2}, Jana Kivastik³, Jaak Talts³, Jarek Mäestu¹

Affiliations

¹ Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, 51014 Tartu, Estonia.
² Sports Medicine and Rehabilitation Clinic, Tartu University Hospital, 50406 Tartu, Estonia.
³ Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, 50411 Tartu, Estonia.

Abstract

The aim of the study was to investigate the effect of an inspiratory muscle warm-up on the VO₂ 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_VO2max) 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 (τ₁) and the VO₂ value at 400 s in Test 1 (r = 0.78; p < 0.05); however, no correlation was found between those parameters in Test 2. In addition, we found a positive association between VO_2max from the incremental rowing test and τ₁ from Test 1 (r = 0.71; p < 0.05), whereas VO₂ did not correlate with τ₁ 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.

Keywords: VO2 fast and slow component; performance; priming exercise; respiratory muscles.