Effects of Different Types of Respiratory Muscle Training on Exercise Performance in Runners

Uemura, Hiromi; Lundgren, Claes E. G.; Ray, Andrew D.; Pendergast, David R.
May 2012
Military Medicine;May2012, Vol. 177 Issue 5, p559
Academic Journal
To compare two different types of respiratory muscle training oil exercise performance, a protocol was devised consisting of a combination of a 4-week, 12-session resistive respiratory muscle training (RRMT) followed by a 4-week, 12-session voluntary isocapnic hyperpnea training (VIHT) and conducted in experienced runners (4 men, 4 women). Measurements before and 5 days after training included: pulmonary function (spirometry), maximal inspiratory and expiratory mouth pressures, respiratory endurance time, maximal oxygen uptake (VO2max), running time to voluntary exhaustion at 80% VO2max, blood lactate concentration, and minute ventilation. There were no statistically significant differences in pulmonary functions and VO2max post-RRMT and post-V1HT compared to pre-RMT. Following RRMT the inspiratory muscle strength had improved by 23.8 ± 30% and 18.7 ± 21.4% at rest and immediately after the running test, respectively. RRMT did not increase the time intense voluntary isocapnic ventilation could be maintained during rest while VIHT increased it (237 ± 207.8%). The duration of the endurance run was extended 17.7 ± 6.5% after RRMT and 45.5 ± 14.3% after VIHT.


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