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문제 정의
- However, since the results of this study was obtained by evaluating the effects of balancing improvement by the experimental movements, it has restrictions to evaluate the complex balance control such as fall, dynamic balancing ability, hip joint strategy. In addition, the variables for the differences in the conditions of muscular strength by the ages of the research subjects in this study. And it is hard to assert if the exercise effect is sustained because the period of performing exercise was short.
제안 방법
- For the experimental group I, the general lower limb exercise program was implemented, and for the experimental group II, the ankle joint exercise strategy program (Theraband + unstable board + air cushion exercise) were implemented, and the exercise was lasted 60 minutes each time(Table 1, 2).
- However, since the results of this study was obtained by evaluating the effects of balancing improvement by the experimental movements, it has restrictions to evaluate the complex balance control such as fall, dynamic balancing ability, hip joint strategy. In addition, the variables for the differences in the conditions of muscular strength by the ages of the research subjects in this study.
- In this study, the plantarflexion and dorsiflexion muscular strength were measured using dynamometer [34], which can evaluate the muscular strength clinically easy and quickly. After the experiment, the statistically significant difference was represented in the plantarflexion and dorsiflexion muscle in the experimental group I and II (p<.
- In this study, the subject personnel are divided into control group, experimental group I and II, and their muscular strength and the balancing ability were evaluated. To measure the muscular strength of the plantarflexion and dorsiflexion, dynamometer was used, and to measure the balancing ability, the FRT and SEBT were conducted.
- To measure the muscular strength of the plantarflexion and dorsiflexion, dynamometer was used, and to measure the balancing ability, the FRT and SEBT were conducted. The intensive ankle joint training and the general limb exercise were performed 3 times a week for 6 weeks. The muscular strength and the balancing ability after the experiment were measured as same way as preliminary tests.
- The other leg not being measured was fixed with strap at the thigh forming the knee 90 degree, and the feet was allowed to the supporting board. The measurement was performed 3 times, taking enough resting time between each measurement to prevent the muscular fatigue, and the maximum voluntary isometric contraction was determined by calculating mean value.
- Sufficient explanation was made to the subjects on the purpose, methods, precautions of this experiment, and written consent to voluntarily participate in this experiment was obtained from them. The subjects were equally and randomly assigned to the control group (only daily life), experimental group I (general lower limbs exercise), and the experimental group II (intensive ankle joint strategy training).
- Therefore, in this study, it was intended to analyze the influences of the intensive ankle joint strategy training on the muscular strength and the balancing ability in the elderly women through the dynamometer, FRT(function reach test), and SEBT(star excursion balance test) after performing intensive ankle joint strategy training using air cushion and elastic band for elderly women.
- In this study, the subject personnel are divided into control group, experimental group I and II, and their muscular strength and the balancing ability were evaluated. To measure the muscular strength of the plantarflexion and dorsiflexion, dynamometer was used, and to measure the balancing ability, the FRT and SEBT were conducted. The intensive ankle joint training and the general limb exercise were performed 3 times a week for 6 weeks.
대상 데이터
- This study was performed during 6 weeks from May to July, 2012 from the 30 elderly women having 65 years or more residing in U city. Sufficient explanation was made to the subjects on the purpose, methods, precautions of this experiment, and written consent to voluntarily participate in this experiment was obtained from them.
데이터처리
- In the one-way ANOVA conducted to test the changes in SEBT among the groups by the intensive ankle joint strategy training period, the statistical significant difference was represented in the experimental group I and II after 6 weeks (p<.05), while no significant difference was represented in all groups before experiment.
- To analyze the data measured in this study, the descriptive statistics of the mean and standard deviation were calculated using SPSS 20.0 statistical program, and to examine the changes between the training effects and between the groups, one-way ANOVA was conducted.
성능/효과
- After the experiment, the statistically significant differences was represented in the experimental group I and II (p<.05), and in the post hoc test, the experimental group I did not represent the significant difference, but the experimental group II represented the significant increase (p<.05).
- Although the one-way ANOVA results conducted to test the changes in dyna- mometer among the groups according to the period of measuring intensive ankle joint strategy training did not represent the significant difference in all the groups before the experiment, the statistically significant difference was represented in the plantar flexion and dorsiflexion muscle of the experimental group I and II after the experiment(p<.05).
- As a post hoc test, Tukey's multiple range test results conducted after 6th week of the experiment showed no statistically significant difference in the experimental group I, but represented the significant increase in the experimental group II (p<.05)(Table 4)(Fig. 2)(Fig. 3).
- Na et al[19] measured the difference of the time starting the contraction of anterior tibial and long peroneal muscle using electro- myogram, and the results showed that the contraction delay time was improved both in the persons having functional instability in ankle and the healthy persons. Considering that significant improvements of the functional stability were made in the most of researches using air cushion exercise, it was judged that the air cushion exercise has significant effects for both static and dynamic stability of the ankle joint strategy.
- In the one-way ANOVA results to test the changes in the functional reach test among the groups according to the intensive ankle joint strategy training period, no significant difference were represented in all groups before experiment, but 6 weeks later, the statistically significant difference was represented in the experimental group I and II (p<.05).
- In the results of Tukey's multiple range test conducted for post hoc test after 6 weeks, the significant increase was represented in experimental group II (p<.05) while no statistically significant difference was shown in experimental group I (Table 5)(Fig. 4).
- In the results of dynamometer, FRT, SEBT conducted after the general lower limbs exercise and the intensive ankle joint strategy training for 6 weeks, the changes in the experimental group I were not statistically significant, and the changes in the experimental group II were increased significantly (p<.05).
- Kim et al[28] reported that the exercise on the unstable circular board would increase the functional stability of the ankle joint, and the Han et al[17] reported that the significant changes in the balancing ability effects on the improvement of functional stability of the ankle joint together with Romberg test results. The results of this study also observed significant increase in were represented by the strengthening of the muscles around the ankle joint.
후속연구
- And it is hard to assert if the exercise effect is sustained because the period of performing exercise was short. So, the author expects that future study would develop efficient intensive ankle joint strategy training to improve the balancing ability in elderlies and to contribute to the stable and effective prevention of the fall by complementing and correcting the limitations of this study.
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