Effects of different types of respiratory muscle training on exercise performance in runners.
To compare two different types of respiratory muscle training on 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 (V(o2)max), running time to voluntary exhaustion at 80% V(o2)max, blood lactate concentration, and minute ventilation. There were no statistically significant differences in pulmonary functions and V(o2)max post-RRMT and post-VIHT 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.
Center for Research & Education in Special Environments, University at Buffalo, 124 Sherman Hall, Buffalo, NY 14214, USA.
Hiromi
H
Uemura
Claes E G
CE
Lundgren
Andrew D
AD
Ray
David R
DR
Pendergast
D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010806:Physical Education and Training / Q000379:methods*; D012137:Respiratory System; D012420:Running