Enhancing Sports Performance With Inspiratory Muscle Training

A recent American study has deemed that strengthening inspiratory muscles by performing daily breathing exercises can reduce the amount of oxygen these muscles require during exercise.

The Indiana University research, "Inspiratory Muscle Training reduces the Oxygen Cost of Breathing during Exercise," was presented June 3 at the American College of Sports Medicine annual meeting.

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Louise Turner, a researcher in the Department of Kinesiology, said just the act of breathing during an endurance activity, such as running, swimming or cycling performed at maximum intensity, can account for 10 to 15 percent of an athlete's total oxygen consumption.

While inspiratory muscle training (IMT) has been shown to improve performance in endurance sports, Turner's study sought to shed light on how IMT does this.

She said: "This study helps to provide further insight into the potential mechanisms responsible for the improved whole-body endurance performance previously reported following IMT."

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The double blind, placebo-controlled study involved 16 male cyclists ages 18 to 40.

IMT involves the use of a hand-held device that provides resistance as one inhales through it, requiring greater use of inspiratory muscles.

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For half of the study participants, the IMT device was set to a level that provided resistance as the subjects took a fast forceful breath in.

For six weeks they took 30 breaths at this setting twice a day.

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The cyclists in the control group did the same exercises with the IMT adjusted to a minimal level.

After six weeks, when the study participants mimicked the breathing required for low, moderate and maximum intensity activities, the inspiratory muscles required around 1 percent less oxygen during the low intensity exercise and required 3 to 4 percent less during the high intensity exercise.

Source-ANI