The influence of low resistance respiratory muscle training on pulmonary function and high intensity exercise performance
Research output: Contribution to journal › Article › peer-review
Electronic versions
Documents
- 1-s2.0-S1728869X24000169-main
Final published version, 1.89 MB, PDF document
Licence: CC BY-NC-ND Show licence
DOI
Background/objectives
Respiratory muscle training (RMT) was recognized as an effective means to improve respiratory muscle (RM) strength and enhance exercise performance. The purpose of this study was to examine the effect of low-intensity RMT on RM strength, pulmonary function, and performance.
Methods
Fourteen healthy active adults were assigned randomly to either a training or placebo group. The training group completed six weeks of RMT, which consisted of a first week, 1 set of 15 min/d, 5 d/wk at 10–25% of maximal inspiratory pressure (PImax), and the remaining 5 weeks, 2 sets of 15 min/d, 5 d/wk, at 30% PImax. The placebo group followed the same protocol but with almost no additional ventilatory resistance. Measurement of RM strength and endurance, spirometry, and endurance exercise performance were obtained before and after the RMT program.
Results
In the training group, PImax (+14%) and maximal expiratory pressure (PEmax, +27%), forced vital capacity (FVC, +3.6%), maximal oxygen uptake (VO2max, +11%), and time to exhaustion (Tlim90%, +25%) increased significantly from baseline values (P < 0.05). No significant changes were observed in the placebo group. Also, no significant interaction in maximum voluntary ventilation (MVV12), minute ventilation (VE), and respiratory rate (RR) were detected.
Conclusions
These data suggest that low-intensity RMT is an effective tool to improve RM strength, pulmonary elastic properties and endurance exercise performance.
Original language | English |
---|---|
Pages (from-to) | 179-186 |
Number of pages | 8 |
Journal | Journal of Exercise Science and Fitness |
Volume | 22 |
Issue number | 3 |
Early online date | 1 Mar 2024 |
DOIs | |
Publication status | E-pub ahead of print - 1 Mar 2024 |