• The Journal of Korean Physical Therapy
• /
• 제23권4호
• /
• pp.1-6
• /
• 2011

Purpose: We investigated the effects of single-leg stance training on standing balance and mobility in patients with subacute hemiplegia. Methods: Seventeen matched subjects were assigned randomly to the experimental group or the control group. The experimental group comprising of 8 subjects received single-leg stance training and conventional physical therapy interventions 5 times per week for 4 weeks. The control group comprising of 9 subjects received only conventional physical therapy interventions 5 times per week for 4 weeks. Outcome measures were assessed before and after 4 weeks of intervention using the Berg Balance Scale (BBS), gait speed, and weight bearing index of the affected side. Results: Both the exercise groups showed significant improvements in BBS, gait speed, and weight bearing index (p<0.05). After 4 weeks of intervention, there were statistically significant differences in BBS and weight bearing index between the two groups (p<0.05). Conclusion: These findings suggest that conventional physical therapy interventions along with single-leg stance training could be more effective than conventional physical therapy alone for improving standing balance and mobility in patients with subacute hemiplegia.

• 국제물리치료학회지
• /
• 제2권2호
• /
• pp.288-293
• /
• 2011

The purpose of this study is to examine the effects of gait training using functional electrical stimulation on the improvement of hemiplegic patients' functions for balance and gait velocity. The subjects of the experiment were determined to be 10 each hemiplegic patients who had been diagnosed with stroke or brain damage six months or longer earlier assigned to an experimental group and a control group respectively. The subjects were evaluated before the experiment using Tetrax and 10M gait tests, received gait training five times a week for four weeks using functional electrical stimulation and were evaluated after the experiment in the same method as used in the evaluation before the experiment. In order to examine differences between the experimental group that received gait training using functional electrical stimulation and the control group that was treated by functional electrical stimulation and received gait training thereafter, differences between before and after the experiment were analyzed using paired sample t-tests and differences in changes after the experiment between the experimental group and the control group were analyzed using independent sample t-tests in order to compare the two groups with each other. Experimental results showed significant differences in weight bearing, balance and gait velocity between before and after the experiment in the experimental group(p<.05). In the control group, whereas weight bearing and gait velocity did not show any significant difference between before and after the experiment(p>.05), balance showed significant differences(p<.05). Weight bearing, balance and gait velocity change rates showed significant differences between the experimental group and the control group(p<.05). In conclusion, it was indicated that gait training using functional electrical stimulation is effective for enhancing stroke patients' weight bearing rates, balance abilities and gait velocity.

• 한국안전학회지
• /
• 제36권1호
• /
• pp.9-17
• /
• 2021

This study analyses the load imbalance of the tower crane used in telescoping work for structural safety, owing to the difference in wind speed and balance weight position. This is because wind speed and position of the balance weight have a significant impact on the structural stresses of a tower crane during telescoping work. Therefore, structural analysis was performed on the 290HC model, which is often used at construction sites and has only one cylinder installed. Moreover, two models were classified to determine the load acting on the connecting part of the telescopic cage to slewing platform and the cylinder. Five types of balance weight positions were applied at regular intervals from jibs; moreover, four types of wind load criteria were differently applied. Hence, the telescopic cage columns were destroyed at all balance weight positions at a wind speed of 30 m/s and only at certain locations at a wind speed of 20 m/s. Furthermore, failures occurred for cylinders, torsional, and bending at wind speeds of 30 m/s and 20 m/s, load imbalances above the allowable thresholds considering the safety factor. In addition, the load imbalance in the telescoping work also varied depending on the position of the balance weights. The results of these studies have validated that the current standards of adjusting the appropriate position of the balance weights on the jib are completely valid, with the telescoping work to be executed only at wind speeds of less than equal to 10 m/s.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2011년도 춘계학술대회 논문집
• /
• pp.1219-1220
• /
• 2011

• 한국콘텐츠학회논문지
• /
• 제15권6호
• /
• pp.259-266
• /
• 2015

본 연구는 비만인의 보행과 관련된 근거자료를 제시하고 근골격계 질환 예방을 위한 임상적 자료로 활용하고자 시행하였다. 신체 건강한 여대생 40명을 정상체중집단(20명), 비만집단(20명)으로 분류하여 보행패턴(smartstep), 균형지수(biodex balance SD), 근활성도(surface EMG)를 정량적으로 측정하여 비교하였다. 연구결과, 정상체중집단에 비해 비만집단의 경우 체중으로 인한 압력과 부하를 이겨내고, 체중 증가로 인한 신체 불균형 상태에서 발목관절 움직임을 증가시켜 보행함으로써 발목 움직임에 작용하는 근육의 활성도가 더 높아짐을 알 수 있었다. 따라서 비만인의 하지 근골격계 질환예방을 위해서는 하지 근육의 근력강화 및 지속적인 균형훈련과 보행 훈련이 필요할 것으로 생각된다.

• 한국전문물리치료학회지
• /
• 제23권1호
• /
• pp.1-10
• /
• 2016

Background: Patients with chronic low back pain (CLBP) functionally adapt to decreased postural control due to impaired processing of sensory information. Standing postural control has been the focus of recent research in CLBP. Change in postural control may be a risk factor for CLBP, although available studies are not conclusive. Objects: This study aimed to identify the role of partial weight supported treadmill training (PWSTT) in improving balance, dysfunction, and pain in patients with chronic low back pain. Methods: The study included 22 patients with CLBP. Patients in the control group ($n_1=8$) performed three 20 min stabilization exercise sessions per week, for 4 weeks. Patients in the full weight treadmill training group ($n_2=7$) performed treadmill training for 30 min after stabilization exercise. Patients in the PWSTT group ($n_3=7$) performed PWSTT with 20% of their body weight unloaded after stabilization exercises. By using the Biodex balance system, the dynamic balance abilities of the patients in the three groups were assessed in the quiet standing position under combined conditions of visual feedback (eyes open and closed) and platform stability (level 8). The Korean version of the Oswestry Disability Index and visual analogue scale score were used as the main measure. Results: The results of this study showed that dysfunction and pain were significantly improved in all groups. Although dynamic postural stability with eyes closed was significantly improved only in the PWSTT group (p<.05), no significant difference was found in the other groups. Conclusion: The results of this study indicate that PWSTT improved balance, dysfunction and pain in the patients with CLBP. Thus, this intervention is necessary for patients with CLBP with decreased postural control.

• 신경치료
• /
• 제22권3호
• /
• pp.1-5
• /
• 2018

Purpose The purpose of this study was to investigate the effect of rehabilitation horse riding exercise on the balance and Geriatric Quality of Life Scale (GQOL) of the elderly. Methods The subjects were 14 elderly males who consisted of 7 in the experimental group and 7 in the control group. The subjected performed rehabilitation horse riding exercise twice a week for 12 weeks. For balance measurements, leftright and anteriorposterior weight bearing, and BBS were tested using GymPlate. In addition, the GQOL was evaluated. Results The results of this study show that in the experimental group, there were significant differences in balance ability and GQOL after the rehabilitation horse riding exercise (P<0.01), but there was no significant difference in the control group (P>0.05). Furthermore, the experimental and control groups showed significant differences in balance ability and GQOL (P<0.01). Conclusion Rehabilitation horse riding exercise is effective in improving the balance ability of the elderly, which also had an effect on the GQOL.

• 한국융합학회논문지
• /
• 제10권7호
• /
• pp.47-54
• /
• 2019

본 연구의 목적은 안정한 지지면, 불안정한 지지면에서 시각 조건이 균형에 미치는 영향에 대해 알아보고자 하였다. 건강한 성인 30명이 본 연구에 참여하였다. 시각 조건은 수직, 수평, 대각선으로 설정하였고 불안정한 지지면에서의 균형 측정을 위해 패드를 밟고 측정을 수행하였다. 균형측정기를 통해 안정성 지수(General Stability Index)와 체중 분포 지수(Weight Distribution Index), 체중 분포도(Weight Distribution)를 측정하였다. 지면 간 비교는 대응 표본 t검정을 하였고, 지면 내 비교는 일원배치분산분석을 사용하였다. 불안정한 지지면에서 시각 조건 내 (수평, 수직)의 안정성지수는 유의한 차이를 보였고(p<.05), 지면간의 비교에서 체중분포지수에서 유의한 차이가 있었다(p<.05). 체중분포도는 수평 방향의 시각의 모든 지지면에서 왼쪽과 오른쪽 사이의 유의한 차이가 나타났다(p<.05). 정적 균형 훈련시, 수평보다 수직과 대각선의 시각 조건을 준다면 균형 훈련에 도움을 줄 수 있다고 사료된다.

• 대한인간공학회지
• /
• 제31권2호
• /
• pp.337-343
• /
• 2012

Objective: The aim of this study was to determine the effect of abdominal-compression belt in one leg standing on balance in normal adult. Background: With the effects of increased intra-abdominal pressure, the abdominal-compression belt is contributing to a static balance control. However, specific study is still insufficient. Method: Forty subjects were randomly allocated to two groups: control(n=20) and experimental group(n=20), respectively. The experimental group used an abdominal-compression belt, whereas the control group did not that. All subjects were educated using pressure biofeedback unit and ultrasound imaging for exact application by abdominal-compression belt. Main outcome measurement was used a general stability index, fourier harmony index, weight distribution index, and fall index in tetrax balance system. Results: Experimental group improved significantly on general stability, only 2 factors(eyes closed with head turned forward and eyes closed with head turned backward) among fourier harmony index, and fall index, However, weight distribution index did not revealed significant difference. Conclusion: The findings suggest that application of abdominal-compression belt could be effective on improving balance ability in one leg standing of normal adults. Application: The results of the abdominal-compression belt might help to control balance in workers.

• 대한물리의학회지
• /
• 제3권2호
• /
• pp.135-144
• /
• 2008

Purpose : The purpose of this study was to identify the effect of body weight support treadmill training (BWSTT) and parallel bar gait training(P-bar) on gait and balance ability of subacute stroke patients. The subjects were consisted of 27 patients with subacute stroke, and they were randomly devided into two groups which were BWSTT group and P-bar group. Method : The timed up and go(TUG), 10m gait speed were used to measure gait speed, Bergs balance scale(BBS) was used to measure dynamic balance ability, and balance performance monitor(BPM) was used to measure sway area, sway path, max velocity. Result : 1. The TUG and 10m gait speed of BWSTT group and P-bar group were significantly decreased (p<.05). The TUG and 10m gait speed were different significantly between BWSTT group and P-bar group(p<.05). 2. The BBS and sway area of BWSTT group and P-bar group were significantly decreased (p<.05). The BBS and sway area were not different significantly between BWSTT group and P-bar group(p>.05). 3. The sway path and max velocity of BWSTT group and P-bar group were significantly decreased (p<.05). The sway path and max velocity were not different significantly between BWSTI group and P-bar group(p>.05). Conclusion : The outcomes suggest that patient with subacute stroke can improve their gait and balance through body weight support treadmill training.