The effects of vocal function exercises on the lung function of trained female singers: a pilot investigation

Vocal function exercises have been designed to strengthen and tone the muscles of the larynx and supporting musculature to enhance vocal function. The effect of these exercises on lung function is yet to be determined. Ten trained female volunteers participated in the current pilot study. All ten subjects performed vocal function exercises twice daily over a period of four weeks and their lung function was tested at the beginning and end of the four week period using Forced vital capacity (FVC), forced expiratory volume in once second (FEV1), FEV1/FVC ratio. Significant differences were found in both FEV1 (p=0.013) and FEV1/FVC ratio (P=0.009) after the completion of the exercises. This is most likely attributed to an increase in the power of the inspiratory muscles and greater muscular co-ordination, strength and endurance during exhalation. This minor thesis was written by a post-graduate student as part of the requirements of the Master of Health Science (Osteopathy) program