Associations of Respiratory Muscle Strength and Trunk Muscle Mechanical Properties With Dynamic Postural Control

This study will examine the associations of respiratory muscle strength and trunk muscle mechanical properties with dynamic balance and limits of stability in healthy young adults. The research will enroll healthy volunteers between the ages of 18 and 30. Participants will undergo assessments to measure their maximal inspiratory and expiratory pressures, as well as the tone and stiffness of their abdominal and lumbar paraspinal muscles. Additionally, the participants will complete computerized balance tests to evaluate their voluntary weight-shifting capabilities and their stability on a moving surface. Ultimately, the findings will determine whether evaluating these respiratory and trunk muscle characteristics will effectively complement standard clinical balance assessments.

Inclusion Criteria: * Being in good general health. * Demonstrating the physical capability to complete respiratory muscle strength testing, myotonometric assessments, and computerized balance evaluations. Exclusion Criteria: * Presenting with major musculoskeletal injuries or surgical interventions within the preceding six months. * Having chronic respiratory conditions such as asthma or chronic obstructive pulmonary disease. * Having cardiovascular disorders. * Having a documented history of neurological or neuromuscular pathologies (e.g., multiple sclerosis or Parkinson's disease). * Pregnancy or lactation. * Presenting with acute systemic illness, fever, or active infection during testing. - Inability to comprehend and execute the experimental protocols.