Kim, SeYoon
(Department of Physical Therapy, Graduate School, Catholic University of Pusan)
,
Jung, JuHyeon
(Department of Physical Therapy, Gimhae College)
,
Kim, NanSoo
(Department of Physical Therapy, College of Health Science, Catholic University of Pusan)
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...
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.
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.
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문제 정의
The present study aimed to determine the effects of the McKenzie exercise program on forward head posture and respiratory function. In the group undergoing McKenzie exercise, forward head posture, FVC, FVC %pred, FEV1, and FEV1 %pred were significantly improved after intervention.
Based on past results that demonstrated the negative impact of musculoskeletal issues on respiratory function, the authors deem the McKenzie exercise to be an appropriate intervention. Therefore, the purpose of the present study was to investigate the effects of McKenzie exercise on forward head posture and respiratory function.
This study sought to determine the effects of the McKenzie exercise on forward head posture and respiratory function. This was based on previous work which showed that respiratory function of people with forward head posture is weaker than that of those with normal head posture.
제안 방법
This was done to measure changes in CVA and respiratory function from pre-intervention to post-intervention (after four weeks of exercise) in the experimental group. Furthermore, changes in CVA and respiratory function from pre-intervention to post-intervention between the two groups were analyzed. This study was approved by the Bioethics Committee of the Catholic University of Pusan (CUPIRB-2013-015).
Subjects in the experimental group performed the McKenzie exercise as an intervention to treat forward head posture. The exercise routine consisted of seven types of movements, at static maximal strength, with 15 to 20 repetitions, holding each repetition for seven seconds. The subjects completed one 20-minute set per day, three times a week for four weeks.
The exercise routine consisted of seven types of movements, at static maximal strength, with 15 to 20 repetitions, holding each repetition for seven seconds. The subjects completed one 20-minute set per day, three times a week for four weeks. To ensure the subjects performed the exercise accurately, sufficient explanation and demonstrations were provided and exercise on day one was monitored by the investigator.
The study applied effective interventions to reduce respiratory function, CVA. This method improves incomplete posture or imbalance of muscle strength in subjects with frontal posture by adapting the motion along three directions of movement. in addtion, this intervention also improved the abnormal stress of the tissue due to muscle length.
대상 데이터
The subjects of the present study were thirty adult men and women with forward head posture who were aged 20–29 years.
데이터처리
Statistical analysis was performed using the non-parametric method because the normality test was not satisfied. The before and after intervention differences in forward head posture and respiratory function between the two groups were analyzed using the Mann-Whiney U test, and withingroup differences before and after intervention were analyzed using the Wilcoxon signed-ranks test. The data were analyzed using PASW version 18.
이론/모형
The present study calculated the percentages and means of the general characteristics of the subjects. Statistical analysis was performed using the non-parametric method because the normality test was not satisfied. The before and after intervention differences in forward head posture and respiratory function between the two groups were analyzed using the Mann-Whiney U test, and withingroup differences before and after intervention were analyzed using the Wilcoxon signed-ranks test.
성능/효과
After four weeks, CVA and FVC %pred in the experimental group show significant increases (p < 0.05).
FVC and FVC %pred in the experimental group show significant increases after four weeks of intervention (p<0.05).
The present study aimed to determine the effects of the McKenzie exercise program on forward head posture and respiratory function. In the group undergoing McKenzie exercise, forward head posture, FVC, FVC %pred, FEV1, and FEV1 %pred were significantly improved after intervention. Despite a small sample size and lack of long-term follow up, it is suggested that McKenzie exercise will be effective in improving forward head posture and respiratory function.
McKenzie exercise and non-intervention groups. Respiratory function was measured pre- and post-intervention and the results show that FVC, FVC %pred, FEV1, and FEV1 %pred significantly increased in the intervention cohort. This result, along with the supporting literature, indicates that improved posture from exercise may also improve respiratory function.
18 assigned those with forward head posture to the experimental group in order to compare their post-intervention respiratory function with healthy controls. The results showed that FVC %pred of the experimental group was 81.95% and that of the control group was 93.54%. In addition, they reported that FEV1 %pred of the experimental group was 90.
The most consistent results were selected as data. The tests were performed in a standing position and the parameters measured were forced vital capacity (FVC), forced vital capacity %predicted (FVC %pred), forced expiratory volume at one second (FEV1), and forced expiratory volume at one second %predicted (FEV1 %pred). FVC is the amount of air exhaled after inhaling as much air as possible and can be used to assess the presence of restrictive pulmonary disease.
They reported improvements in pain and CVA after the intervention. Therefore, the results of the present study are in agreement with the literature which demonstrates that McKenzie exercise corrects abnormal posture and can shorten the time toward postural improvement.
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