목빗근에 대한 수동 스트레칭 운동이 폐 기능에 미치는 영향

The Effects of Passive Stretching Exercise for Sternocleidomastoid(SCM) Muscle on Pulmonary Functions

Purpose : This study aimed to investigate the effect of passive stretching of the sternocleidomastoid(SCM) muscle on pulmonary function. Methods : The subjects were 20 female university students without neurological, muscular, or cardiopulmonary dysfunction. Pulmonary function was tested using a digital pulmonary function-measuring device(Pony FX, COSMED Inc., Italy). The experimental group performed three sets of passive stretching on the SCM muscles. One set included three sets of passive stretching. The control group did not perform any other exercises. After passive stretching, pulmonary function was remeasured. The statistics program was SPSSWIN(ver 25.0) package program. Results : The forced vital capacity(FVC), forced expiratory volume in one second(FEV1), and vital capacity(VC) were significantly improved in the experimental group after stretching exercise. However, there was no change in the control group. The changes in the FVC, FEV1, and maximal voluntary ventilation(MVV) were higher in the experimental group than in the control group. Conclusion : The results indicated that passive stretching exercise of the SCM muscle can improve pulmonary function. In particular, it was particularly effective for maximal effort vital capacity(MEVC) and MVV.