Effects of inspiratory muscle strength on physiological response to exercise in elite rowers and healthy men

Effects of inspiratory muscle strength on physiological response to exercise in elite rowers and healthy men


Associate Professor, PhD Andrzej Klusiewicz1
1Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Health, Biała Podlaska, Poland

Objective of the study was to determine the degree of respiratory muscle fatigue in relation to fitness level, and to determine the relationship between inspiratory muscle strength and exercise respiratory indices.
Methods and structure of the study. Elite rowers (n=10) and untrained healthy university students (n=28) performed progressive maximal tests. Respiratory indices were measured, including maximal inspiratory pressure (PImax) at rest and 3 min after exercise in both groups. In the literature, PImax is considered as an indicator of respiratory muscle strength.
Results and conclusion. In the group of rowers, significantly higher resting PImax (167±30 cmH2O) was observed compared to the group of students (117±29 cmH2O). However, after exercise, the percentage difference between resting and exercise pressures did not significantly differentiate between the groups. In both elite rowers and non-athlete students, respiratory muscle fatigue was recorded in about 60% of cases. There were no significant correlations between resting PImax and pulmonary ventilation, VO2max, or oxygen equivalent; only in the group of students, respiratory muscle strength correlated significantly and positively with BMI. The present study confirmed that even a high level of fitness does not prevent respiratory muscle fatigue induced by a progressive maximal effort.

Keywords: elite rowers, healthy men, indices of inspiratory muscle function, response to exercise.


  1. Boussana A., Hue O., Matecki S., Galy O., Ramonatxo M., Varray A., Le Gallais D. The effect of cycling followed by running on respiratory muscle performance in elite and competition triathletes. European Journal of Applied Physiology, 2002, vol. 87, pp. 441-447. doi: 10.1007/s00421-002-0637-x.
  2. Jakovljevic D.G., McConnell A.K. Influence of different breathing frequencies on the severity of inspiratory muscle fatigue induced by high-intensity front crawl swimming. The Journal of Strength & Conditioning Research, 2009, vol. 23, no. 4, pp. 1169-74. doi: 10.1519/JSC.0b013e318199d707.
  3. Klusiewicz A., Zubik Ł., Długołęcka B., Charmas M. (2014) Characteristics of the respiratory muscle strength of women and men at different training levels. Polish Journal of Sport and Tourism, 2014, vol. 21, no. 2, pp. 82-86.
  4. Lomax M.E., McConnell A.K. Inspiratory muscle fatigue in swimmers after a single 200 m swim. Journal of Sports Sciences, 2003, vol. 21, pp. 659-664. doi: 10.1080/0264041031000101999. 
  5. Ozkaplan A., Rhodes E.C. Exercise induced respiratory muscle fatigue – a review of methodology and recent findings. Biology of Sport2004, vol. 21, pp. 207-230.
  6. McConnell A.K., Caine M.P., Sharpe G.R. Inspiratory muscle fatigue following running to volitional fatigue: The influence of baseline strength. International Journal of Sports Medicine, 1997, vol. 18, pp. 169-173. doi: 10.1055/s-2007-972614.
  7. Romer L.M., McConnell A.K., Jones D.A. Inspiratory muscle fatigue in trained cyclists: effects of inspiratory muscle training. Medicine and Science in Sports and Exercise, 2002, vol. 34, pp. 785-792.  doi: 10.1097/00005768-200205000-00010. 
  8. Romer L.M., McConnell A.K. Inter-test reliability for non-invasive measurements of respiratory muscle function in healthy humans. European Journal of Applied Physiology, 2004, vol. 91, pp. 167-176. doi: 10.1007/s00421-003-0984-2.
  9. Romer L.M, Polkey M.I. Exercise-induced respiratory muscle fatigue: implications for performance. Journal of Applied Physiology, 2008, vol. 104, no. 3, pp. 879-88. doi: 10.1152/japplphysiol.01157.2007.
  10. Shei R.J., Lindley M., Chatham K., Mickleborough T.D. Effect of flow-resistive inspiratory loading on pulmonary and respiratory muscle function in sub-elite swimmers. The Journal of Sports Medicine and Physical Fitness, 2016, vol. 56, no. 4, pp. 392-8.
  11. Tiller N.B. Pulmonary and respiratory muscle function in response to marathon and ultra-marathon running: a review. Sports Medicine,2019, vol. 49, no. 7, pp. 1031-1041. doi: 10.1007/s40279-019-01105-w.
  12. Volianitis S., McConnell A.K., Koutedakis Y., McNaughton L., Backx K., Jones D.A. Inspiratory muscle training improves rowing performance. Medicine and Science in Sports and Exercise, 2001, vol. 33, pp. 803-809. doi: 10.1097/00005768-200105000-00020.