The Effect of Inspiratory Muscle Training on Respiratory Parameters, Balance, Trunk Endurance and Trunk Isokinetic Muscle Strength in Wrestling Athletes

The intervention involves the application of inspiratory muscle training using the POWERbreathe Plus device. Training will be conducted at an initial intensity of 50% of the individual's MIP and will be increased weekly by 10%, reaching 80% by week four. Sessions will take place 5 days per week and consist of 2 sets of 30 repetitions per day, with 2-minute rest intervals between sets. This training aims to improve inspiratory muscle strength and endurance, as well as core stability, respiratory function, dynamic balance, and trunk isokinetic strength.

The placebo group will perform identical training sessions using the same device but with a constant minimal resistance set at 15% of the initial MIP, insufficient to induce a physiological training effect. This intervention is designed to control for placebo response. Assessment protocols will be identical to those in the experimental group.