[논문]Changes of One-Leg Standing Balance of Ipsilateral and Contralateral Lower-Limb Following Unilateral Isokinetic Exercise of Ankle Joint in Young Adults

Son, Sung Min

Changes of One-Leg Standing Balance of Ipsilateral and Contralateral Lower-Limb Following Unilateral Isokinetic Exercise of Ankle Joint in Young Adults 원문보기

Journal of Korean Physical Therapy : JKPT = 대한물리치료학회지, v.27 no.6, 2015년, pp.430 - 433

Son, Sung Min (Department of Physical Therapy, College of Health Science, Cheongju University)

Abstract ▼ AI-Helper

Purpose: The purpose of this study was to investigate the effects of a four week unilateral isokinetic exercise program applied to ankle on the one-leg stance balance performance of ipsilateral and contralateral lower-limbs. Methods: Subjects were randomly assigned to either a right ankle training program (n=12) or a control group (n=12). The training group received unilateral ankle isokinetic exercise of the dominant side for 4 weeks, whereas control group did not. Ipsilateral and contralateral one-leg balance were measured before and after intervention using the Biodex Balance System. Results: Improvements of stability scores, such as APSI, MLSI, and OSI, from pre-test to post-test were significantly different greater for the training group when the control. Conclusion: The results of this study suggest unilateral ankle strengthening exercise transfers benefit to the untrained limb by a cross-education effect, and that this type of exercise should be considered to improve one-leg standing balance of trained and untrained lower-limbs.

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문제 정의

We considered that this theme could be expanded to contralateral balance performance after an ipsilateral strength exercise. Therefore, the purpose of the present research was to investigate the effects of a four week unilateral isokinetic exercise program of the ankle on one leg stance balance performance of ipsilateral and contralateral lower extremities in untrained young adults.
In the current study, we attempted to investigate the effects on one leg stance balance performance of ipsilateral and contralateral lower extremity following unilateral isokinetic exercise of ankle musculature during four weeks. This is the first study to assess change in one-leg standing balance in the untrained lower-limb following unilateral isokinetic exercise of ankle joint. Our findings showed that there were significant improvements in the APSI, MLSI and OSI of ipsilateral and contralateral lower extremity during one-leg standing balance in the training group, compared to the gender and age-matched control group.

제안 방법

Stabilization was provided by two shoulder straps that crossed the subject’s chest, a waist strap, and a thigh strap.
Mean values of these two measurements were used in the analysis. Testing orders of trained and untrained leg was chosen randomly, the second leg was tested 1 hour after the first.
The 24 subjects were randomly assigned to a training group that performed a 4-week strength a training program for the right ankle (n=12) or a control group (n=12), members of which did not train. All subjects participated in a testing session before and after the 4-week intervention period.
The subject of training group received five times per week for four consecutive weeks. The subjects in the control group attended health education programs, such as, fall prevention, balance, exercise, and provided general information regarding health promotion during four hour long lectures (one per week for 4 weeks). In addition, control groups were asked to maintain their physical activity level for 4 weeks and to not participate in any strengthening exercise programs.
Twenty four healthy, right-handed university students volunteered for this study, the Edinburgh handedness inventory was used to determine handedness. No of the 24 subjects had participated in any kind of strength training exercise during the previous 6 months, and all were free of any peripheral or neurological impairment that prevented independent single limb stance, such as, a history of lower-limb fracture or surgery, a ligamentous ankle injury, or vestibular impairment.

데이터처리

In order to compare and contralateral balance on the impact of ipsilateral ankle strength training, two-way analysis of variance 2 × 2 ANOVA for repeated measures was used.
The independent t-test was used to analyze differences between the training and control groups with respect to age, height, weight, and foot length. Normalities of distributions of variables were checked using the Shapiro-Wilktest. In order to compare and contralateral balance on the impact of ipsilateral ankle strength training, two-way analysis of variance 2 × 2 ANOVA for repeated measures was used.
0 software. The independent t-test was used to analyze differences between the training and control groups with respect to age, height, weight, and foot length. Normalities of distributions of variables were checked using the Shapiro-Wilktest.

성능/효과

2. Two-way ANOVA with repeated measures of ipsilateral and contralateral one-leg standing balance showed group (p < 0.05), time (p < 0.05), and group-by-time interaction (p < 0.05) had significant main effects.
In addition, improvements in one-leg standing balance of untrained lower-limbs and of trained lower-limbs were observed after 4 weeks of unilateral isokinetic exercise of an ankle joint. However, the control group showed no change in balance scores after training.
This is the first study to assess change in one-leg standing balance in the untrained lower-limb following unilateral isokinetic exercise of ankle joint. Our findings showed that there were significant improvements in the APSI, MLSI and OSI of ipsilateral and contralateral lower extremity during one-leg standing balance in the training group, compared to the gender and age-matched control group.
However, the control group showed no change in balance scores after training. Our results indicate that cross-education does appear to have a positive influence on stability balance, as assessed using APSI, MLSI, and OSI. Our findings are supported by several previous studies, in which untrained limbs shows positive gains after different training programs involving, such as, muscle muscular activation, transcranial magnetic stimulation activation.
05) had significant main effects. Statistical analysis indicated that the APSI, MLSI, and OSI in the training group were significantly lower after training than before training. The improvement of stability scores, such as APSI, MLSI, and OSI, from pre-test to post-test were significantly different greater for the training group when comparing the control.

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원문보기 상세보기
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Changes of One-Leg Standing Balance of Ipsilateral and Contralateral Lower-Limb Following Unilateral Isokinetic Exercise of Ankle Joint in Young Adults 원문보기

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Changes of One-Leg Standing Balance of Ipsilateral and Contralateral Lower-Limb Following Unilateral Isokinetic Exercise of Ankle Joint in Young Adults 원문보기

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