Romer, L. M., McConnell, A. K., & Jones, D. A. (2002). Inspiratory muscle fatigue in trained cyclists: Effects of inspiratory muscle training. Medicine and Science in Sports and Exercise, 34, 785-792.

Trained cyclists (N = 8) performed additional inspiratory muscle training for six weeks while a control group (N = 8) of trained cyclists only trained. Maximum static and dynamic inspiratory muscle function was assessed at <2, 10, and 20 minutes post exercise (20-km and 40-km simulated time trials).

Inspiratory muscle training significantly improved the 20-km (3.8%) and 40-km (4.6%) time trials and reduced the level of inspiratory muscle fatigue post exercise.

Implication. Inspiratory muscle training improves endurance performance in trained cyclists.

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