Influence of an Inspiratory Muscle Fatigue Protocol on Healthy Youngs on Respiratory Muscle Strength, Vertical Jump Performance and Muscle Oxygen Saturation

Respiratory muscle training represents an effective method increasingly utilized in both sports and healthcare domains, employing various devices, among which threshold devices are prominent. The aim of this study is to determine the relationship between inspiratory muscle fatigue and muscular strength in lower limbs, in both healthy and pathological subjects, as well as the association between such fatigue and other variables, including maximal inspiratory pressure and muscle tissue oxygen levels. According to our hypothesis, the execution of a protocol inducing inspiratory muscle fatigue in healthy youngs could influence muscular strength, exercise capacity and muscle tissue oxygenation. In this study, subjects will be divided into three groups: experimental group , activation group and control group. Measurements of variables, such as maximal inspiratory pressure, peripheral muscle tissue oxygen levels, diaphragmatic strength (ultrasound image) and vertical jump performance, will be conducted.