Acute Effect of Different Frequency of Whole Body Vibration on Lung Function, Respiratory Function, Upper Extremity Strength and Flexibility, Cardiac Autonomic Function, and Quality of Life in Healthy Adults and Moderate to Severe Chronic Obstructive Pulmonary Disease

What this Trial Is About

Chronic obstructive pulmonary disease (COPD) is a long-lasting lung condition that causes breathing difficulties, muscle weakness, and lowers quality of life. Physical inactivity worsens symptoms and raises the risk of death. Guidelines recommend regular aerobic and resistance exercise to improve health, but the best exercise intensity and duration for COPD patients remain unclear. This study aims to explore how different frequencies of whole-body vibration (WBV) affect lung and muscle function, heart health, and quality of life in people with COPD and healthy adults. Participants will receive whole-body vibration therapy at three different frequencies (15, 25, and 35 Hz) in a randomized order. Each frequency will be tested over one week with a washout period of at least 7 days between sessions. After testing all frequencies, participants will complete three more sessions at their final assigned frequency to assess cumulative effects. The study includes healthy adults aged 18 to 65 and COPD patients classified as GOLD stage II to IV. During the study, researchers will measure lung function, diaphragm movement and thickness, respiratory muscle strength, and heart and lung responses at baseline and after each vibration frequency. They will also assess upper limb strength and flexibility, heart rate variability, and quality of life using questionnaires. The study will track changes from the start through the final sessions over approximately six weeks to understand the immediate and lasting effects of WBV therapy.

Acute Effect of Different Frequency of Whole Body Vibration (WBV) on Healthy and Chronic Obstructive Pulmonary Disease (COPD)