University of Worcester Worcester Research and Publications

The Influence of Inspiratory and Expiratory Muscle Training Upon Rowing Performance

Griffiths, Lisa and McConnell, A.K. (2007) The Influence of Inspiratory and Expiratory Muscle Training Upon Rowing Performance. European Journal of Applied Physiology, 99 (5). pp. 457-466. ISSN 1439-6319

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We investigated the effect of 4 week of inspiratory (IMT) or expiratory muscle training (EMT), as well as the effect of a subsequent 6 week period of combined IMT/EMT on rowing performance in club-level oarsmen. Seventeen male rowers were allocated to either an IMT (n = 10) or EMT (n = 7) group. The groups underwent a 4 week IMT or EMT program; after interim testing, both groups subsequently performed a 6 week program of combined IMT/EMT. Exercise performance and physiological responses to exercise were measured at 4 and 10 week during an incremental rowing ergometer ‘step-test’ and a 6 min all-out (6MAO) effort. Pressure threshold respiratory muscle training was undertaken at the 30 repetition maximum load (~50% of the peak inspiratory and expiratory mouth pressure, PImax or PEmax,respectively). PImax increased during the IMT phase of the training in the IMT group (26%, P < 0.001) and was accompanied by an improvement in mean power during the 6MAO (2.7%, P = 0.015). Despite an increase in PEmax by the end of the intervention (31%, P = 0.03), the EMT group showed no significant changes in any performance parameters during either the ‘step-test’ or 6MAO. There were no significant changes in breathing pattern or the metabolic response to the 6MAO test in either group, but the IMT group showed a small decrease in HR (2–5%, P = 0.001). We conclude that there were no significant additional changes following combined IMT/EMT. IMT improved rowing performance, but EMT and subsequent combined IMT/EMT did not.

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Uncontrolled Keywords: Respiratory muscle training, Performance enhancement
Subjects: Q Science > QP Physiology
Divisions: Academic Departments > Institute of Sport and Exercise Science
Depositing User: Lisa Griffiths
Date Deposited: 28 Jun 2013 08:28
Last Modified: 06 Aug 2015 13:34

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