[논문]Effects of Active Vibration Exercise on Trunk Muscle Activity, Balance, and Activities of Daily Living in Patients with Chronic Stroke

Lee, Dong-Kyu; Kim, Eun-Kyung

doi:10.18857/jkpt.2018.30.4.146

Effects of Active Vibration Exercise on Trunk Muscle Activity, Balance, and Activities of Daily Living in Patients with Chronic Stroke 원문보기

Journal of Korean Physical Therapy : JKPT = 대한물리치료학회지, v.30 no.4, 2018년, pp.146 - 150

Lee, Dong-Kyu (Department of Physical Therapy, Sunhan Hospital) , Kim, Eun-Kyung (Department of Physical Therapy, Gangdong University)

Abstract ▼ AI-Helper

Purpose: This study aimed to investigate the effect of active vibration exercise on trunk muscle activity, balance, and activities of daily living in patients with chronic stroke. Methods: Twenty-four patients with chronic stroke were randomly assigned to an experimental (n=12) or a control (n=12) group. The experimental group performed an active vibration exercise workout for 20 minutes a day five times a week for 4 weeks using a flexi-bar. Trunk muscle activity was measured using surface electromyography. Balance was measured using the Berg balance scale. Activities of daily living were measured using the functional independence measure. Results: The intragroup comparison showed significant differences in the rectus abdominis, internal oblique, and external oblique muscle activity values, Berg balance scale score, and functional independence measurement values in the experimental group. The intergroup comparison showed that differences in the rectus abdominis and internal oblique external oblique muscle values, Berg balance scale score, and functional independence measurement value for the experimental group were significantly related to those in the control group. Conclusion: Based on these results, this study proved that the active vibration exercise effectively improved trunk muscle activity, balance, and activities of daily living in patients with chronic stroke.

주제어

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문제 정의

Therefore, this study aimed to analyze the effect of the active vibration exercise on chronic stroke patients’ trunk muscle activities, balance, and activities of daily living.
This study aimed to investigate the effect of active vibration exercise on trunk muscle activity, balance, and activities of daily living in patients with chronic stroke. Kim and Park¹⁴ conducted a study in a passive method using full-body vibration exercise equipment, while this study used a flexi-bar to apply active vibration exercise.

제안 방법

The experimental and control groups received a neurodevelopmental treatment. In addition, the experimental group performed an active vibration exercise workout for 20 minutes a day five times a week for 4 weeks using a flexi-bar (FLEXI-BARⓇ; Flexi-Sports, Germany), a stick that is 1,520 mm long and weighs 719 g. The middle part of the stick has a rubber handle measuring 17.
The reference contraction value was measured when the patient was comfortably seated on a chair, while the reference voluntary contraction value was measured when the patient stood up naturally from the seated position. The movements were measured thrice and the average value was used to minimize measurement errors, the measurement time was analyzed by collecting 3-second signals that eliminated the first and last second and applying the percentage of the reference voluntary contraction value from the electromyography signal recorded by measuring for 5 seconds.
9 cm, whereas the ends consist of weighty rubber, so the hands and arms transfer approximately 5 Hz vibrations when holding the middle handle and shaking the stick. The subject held the flexi-bar with both hands while standing and performed the up-and-down vibration exercise (Figure 1).

대상 데이터

The subjects of this study were 24 chronic stroke patients hospitalized in S hospital. This study divided 24 stroke patients into two groups: 12 (six men, six women) in the experimental group and 12 (six men, six women) in the control group.
The subjects of this study were 24 chronic stroke patients hospitalized in S hospital. This study divided 24 stroke patients into two groups: 12 (six men, six women) in the experimental group and 12 (six men, six women) in the control group. Subjects with no visual disability, with no orthopedic diseases in the upper or lower limbs, who scored more than 24 points on the mini-mental state examination, and who were able to walk more than 10 m using auxiliary equipment were included.

이론/모형

Balance was measured using the Berg balance scale (BBS), which included 14 items divided into three areas of sitting, standing, and posture change. The total possible score is 56, the higher the score, the better the individual’s balance.
, Chicago, IL, USA) was used to statistically process and analyze the collected data. The Shapiro-Wilk test was used to check the normal distribution of the data. A paired ttest was performed to compare the extent of trunk muscle activity, balance, and activities of daily living in both groups before versus after the study.

성능/효과

This result implies that active vibration exercise using flexi-bar is expected to be helpful for improving balance ability. In this study, the flexi-bar exercise, which results in active vibrations, gave a strong vibration stimulus to the trunk, contributed to trunk stability, and had a positive impact on nerve root adjustment, thereby enhancing balance.
The experimental group had a significant difference as it functional independence measure increased from 82.40± 2.30 to 87.20±1.92 (p [ 0.05), but the control group did not have a significant difference although its functional independence measure decreased from 83.40± 2.30 to 83.80±1.92 (p] 0.05)(Table 2).
The experimental group had a significant difference as its berg balance scale increased from 40.80±1.64 to 44.80± 0.83 (p [ 0.05), but the control group did not have a significant difference even though its berg balance scale increased from 39.20± 2.48 to 40.20± 2.77 (p] 0.05)(Table 2).
The experimental group had a significant difference as its rectus abdominis increased from 39.50± 2.25 to 48.20±4.70 (p [ 0.05), but the control group did not have a significant difference even though its rectus abdominis increased from 39.41±3.40 to 41.24 ± 2.83 (p] 0.05)(Table 2).
This study confirmed that the active vibration exercise effectively enhances chronic stroke patients’ trunk muscle activities, balance, and activities of daily living.

후속연구

Moreover, the small sample size is insufficient to allow generalization of our results to all chronic stroke patients. Thus, an additional study to improve upon these problems is necessary.

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