The Effects of McKenzie Exercise on Forward Head Posture and Respiratory Function
김세윤, 정주현, 김난수,
소속 상세정보
김세윤 ( Kim Se-Yoon )
Catholic University of Pusan Graduate School Department of Physical Therapy
정주현 ( Jung Ju-Hyeon )
Gimhae College Department of Physical Therapy
김난수 ( Kim Nan-Soo )
Catholic University of Pusan College of Health Science Department of Physical Therapy
Abstract
Purpose: This study sought to investigate the effects of the McKenzie exercise program on forward head posture and respiratory function.
Methods: Thirty adult men and women with forward head posture, aged 20-29 years, were randomly assigned to the experimental group (N=15) or the control group (N=15). Subjects in the experimental group performed the McKenzie exercises three times a week for four weeks, while subjects in the control group did not receive any intervention. Craniovertebral angle (CVA) was measured to quantify forward head posture, and forced vital capacity (FVC), FVC % predicted, forced expiratory volume at one second (FEV1), and FEV1 % predicted were measured to determine changes in respiratory function. The Mann-Whitney U-test was used to analyze pre-test differences in forward head posture and respiratory function between the two groups, and the Wilcoxon signed-rank test was used to analyze differences in forward head posture and respiratory function within the groups before and after intervention. The significance level (α) was set to 0.05.
Results: A comparison of pre- and post-test measures showed that CVA significantly increased in the experimental group (p=0.001) denoting postural improvement, whereas no significant difference was found in the control group (p=0.053). All respiratory measures, i.e.,FVC, FVC %pred, FEV1, and FEV1 %pred, were significantly improved in the experimental group, whereas there were no significant differences in the control group.
Conclusions: McKenzie exercise can be effective in improving forward head posture and respiratory function.
키워드
Exercise therapy; McKenzie exercise; Posture; Respiration; Respiratory function test
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