• 감성과학
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• 제24권2호
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• pp.81-92
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• 2021

본 연구의 목적은 해부학적 근거로 제작한 5가지의 EMS 요추 복압 벨트가 요추 안정화에 미치는 영향을 연구하는 것이다. 본 연구는 요방형근, 척추세움근, 내복사근, 외복사근, 대요근으로 총 5가지의 코어 근육을 선정하여 이에 맞는 근육 모양과 통증 유발점인 압통점을 고려해 전도성 원단으로 패턴을 설계하여 복압 벨트에 결합했다. 총 4가지 동작으로 실험을 진행하여 각각 다른 EMS복압 벨트가 요추 안정화에 미치는 영향을 알아보았다. 건강한 신체의 20대 남성 5명을 대상으로 진행하였고 선정 조건은 최근 3개월 동안 요통 과거력이 없고 사전 검사를 통해 제한되는 동작이 없고, 체간의 근력이 정상등급에 속한 대상이다. 실험 동작의 순서는 하지직거상 검사, 좌전굴, 체전굴, 배근력으로 다음 동작에 제한되지 않게 선정하였다. 동작 간의 휴식은 2분으로 진행하였고, EMS복압 벨트를 착용 후 실험을 진행할 때는 혈류량 증가와 근 활성화를 위해 전기자극을 10분씩 적용하고 진행하였다. 실험 결과의 통계는 비모수 검정으로 윌콕슨 검정과 프리드만 검정을 실시함으로 구체적인 차이를 분석하였다. 본 연구의 결과 5가지의 패턴 중 5,4,3,1,2 순으로 Type별 순위 결과를 확인할 수 있었으며 각 근육의 움직임과 연관성이 있는 실험 동작에 조금 더 유의미한 결과를 확인할 수 있었다. 본 연구의 결론은 해부학적 근거로 제작된 패턴으로 인해 각 근육에 각기 다른 모양으로 전기자극을 전달하였을 때 구분되는 효과를 확인할 수 있었으며 일반인 대상으로 일상생활이나 트레이닝에 있어 요추 안정화를 향상할 수 있을 것으로 기대된다.

• 대한물리의학회지
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• 제15권1호
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• pp.95-104
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• 2020

PURPOSE: A prospective study was conducted to investigate the correlation between the inspiration ability, bone mineral density, lumbar muscle strength, and muscular endurance for the national softball athletes in the national training center. METHODS: The general characteristics of study subjects, inspiration ability, bone mineral density, muscle strength, and muscular endurance data were analyzed using descriptive statistics. In addition, the Pearson product moment correlation was performed to investigate the correlation between the inspiratory capacity, bone mineral density, muscle strength, and muscular endurance. RESULTS: The inspiration, flow rates, and volume were not correlated with the bone mass and bone mineral density. Inspiration and the flow rates and volume were not correlated with the bone mass and bone mineral density. On the other hand, inspiration was correlated with the Extensor muscles (r=.464, p=.006) at an angular velocity of 60°/s and the flexors (r=.463, p=.006) and extensor muscles (r=.615, p<.001) at an angular velocity of 180°/s. The flow rate was also correlated with the extensor muscles (r=.444, p=.009) at an angular velocity of 60°/s and with flexor muscles (r=.432, p=.011) and extensor muscles (r=.589, p<.001) at an angular velocity of 180°/s. Finally, the volume was correlated at the extensor muscles at an angular velocity of 180°/s (r=.534, p=.001). CONCLUSION: The correlation between the inspiratory capacity, bone mineral density, muscle strength, and muscular endurance of softball athletes did not correlate with the bone mass and bone density. On the other hand, the lumbar muscle strength increased with increasing inspiratory capacity.

• 대한물리치료과학회지
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• 제16권3호
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• pp.35-42
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• 2009

Background: The purpose of this study is to measure the amount of influence of taping and a whole body balance upon muscle strength, endurance, and flexibility. Experiments were conducted by two different groups, specially designed for this study. The choice of exercise methods for each group depends on its own idiosyncratic characteristics (or Each group employs its own idiosyncratic exercise method). Methods: The first group, with taping applied, undertook exercises three times a week; second group just took exercises three times a week. These experiments show the following outcomes. Results: The first group showed a considerable amount of difference in terms of muscle strength, endurance, and flexibility. Second group also showed similar outcome. Both the first group and the second group revealed a considerable difference. But the first group showed a bigger difference than the second group. Conclusion: Thus, the result of these experiments strongly indicates that exercise, with taping applied, turns out the most effective in promoting muscle strength, endurance, and flexibility.

• 척추신경추나의학회지
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• 제7권2호
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• pp.39-52
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• 2012

Objectives : The purpose of this study was to investigate the correlation between lumbar lordotic angle and the power of trunk flexors, extensors in normal adults Methods : 34 normal participants participated in this study. Their lumbar lordotic angle(L1-S1 Cobb's angle and L1-L5 cobb's angle) was measured by x-ray taken on lateral direction, erect cross-arm position. And muscle power of trunk flexors and extensors of each participant measured using Cybex HUMAC NORM. Results : 1. The average of L1-S1 Cobb's angle was $47.21{\pm}8.88^{\circ}$ and the average of L1-L5 Cobb's angle was $36.32{\pm}9.62^{\circ}$(Table IV). 2. The average ratio of trunk flexors/extensors was $6.44{\pm}19.31%$(Table V). The average power of the trunk flexors was $165.18{\pm}55.05$(Newton-Meter/kg), and the power of trunk extensors was $257.18{\pm}85.53$ (Newton-Meter/kg)(Table VI). 3. Lumbar lordotic angle has no relation to the ratio of trunk flexors/extensors(Table VII, Fig. 4). 4. Lumbar lordotic angle has no relation to both the power of the trunk flexors and extensors(Table VIII, Fig. 5, Fig. 6). Conclusions : These results suggest that the lumbar lordotic angle measured by radiograph could not evaluate the power and ratio of trunk flexors, extensors.

• The Journal of Korean Physical Therapy
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• 제15권4호
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• pp.255-298
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• 2003

The purpose of study was to evaluate effects of a trunk muscle strength training on sitting balance of children with spastic cerebral palsy. Five individuals with spastic cerebral palsy(three females. two males; mean aged 6.6) participated three times a week over 6 weeks. Five individuals with spastic cerebral palsy(three females. two males; mean aged 7.0) who did not receive strength training served as control. BPM(Balance Performance Moniter) was used to measured sitting balance and EMG(electromyograph, NORAXON, USA) was used to measured activities of abdominal and erector spine muscle. The obtain result are as follows. 1. The result of this study were following that maximum perturbation area and perturbation velocity were significantly reduced strength training group compared with control group(p<.05). 2. The result of this study were following that maximum perturbation area and perturbation velocity were significantly reduced after strength training compared with pre strength training in strength training group(p<.05). 3. The result of this study were following that maximum perturbation area and perturbation velocity were not significantly reduced at interval of six week in control group(p<.05). 4. The result of this study were following that abdominal muscle activity was significantly increased strength training group compared with control group(p<.05). 5. The result of this study were following that erector spine muscle activity was significantly increased strength training group compared with control group(p<.05). 6. The result of this study were following that abdominal muscle activity and erector spine muscle were significantly increased after strength training compared with pre strength training in strength training group(p<.05). 7. The result of this study were following that abdominal muscle activity and erector spine muscle were not significantly increased at interval of six week in control group(p<.05). In conclusion, the result of this study suggest that improved sitting balance and increased activities of trunk muscle by trunk strength training in spastic cerebral palsy. The result was proposed that therapeutic approach of spastic cerebral palsy with impaired sitting balance should use trunk strength training.

• 대한물리의학회지
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• 제8권1호
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• pp.117-125
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• 2013

PURPOSE: The purpose of this study was to investigate the effect of trunk muscle strengthening exercises on balance performance of sitting posture and upper extremity function, targeting the children with spastic diplegic cerebral palsy. METHODS: 20 children with spastic diplegic cerebral palsy were sampled at random and the tests were conducted for 6 weeks, 3 times per week. For experimental groups, basic physical therapy and trunk muscle strengthening exercises were conducted and for control groups, only basic physical therapy was conducted. BPM(Balance Performance Monitor) was used to measure balance performance and QUEST(quality of upper extremity skills test) was used to measure the upper extremity function. RESULTS: The comparison of changes in sitting balance performance in between experimental groups and control groups show significant difference (p<.05), the changes of the upper extremity function in experimental groups and control groups show significant difference (p<.05). CONCLUSION: Trunk muscle strengthening exercises are effective in improving balance performance and the upper extremity function for the children with spastic diplegic cerebral palsy.

• 대한정형도수물리치료학회지
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• 제12권2호
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• pp.33-41
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• 2006

This study planed to analyze durability of effect and result that the Medx and Sling exercise gets to the strength of lumbar extensors. 15 patients who had enforce the minimal invasive lumbar surgery were executed 3 times per week for 8 weeks. The purpose of this study was to identify the influence of the mixed exercises of the Medx and Sling program on lumbar trunk muscles and to present basic data for the proper exercise prescription for lumbar patients. The results were as follows: 1) Left: Patients by lumbar hernia operation of trunk muscle strength by Sling-exercise: 0, 45, 90, 135, 180 (degree) treatment periods (P<0.05). 2) Right: Patients by lumbar hernia operation of trunk muscle strength by Sling-Exercise: 0, 45, 90, 135, 180 (degree) treatment periods (P<0.05). Medx treatment, a muscle strengthening lumbar extension exercise program, was now being used at local hospitals. In addition, Sling exercise, which is designed to develop lumbar muscle by way of reducing gravity in a new way so that it can accelerate the growth of muscles and ligaments in-depth in the patients, also has begun to be introduced gradually. In this study, therefore, the new mixed program (Sling and Medx training)can used as an exercise program that can reduce pain and increase lumbar muscles, not only for disk disease patients but also for all those who have undergone surgery or who haven't undergone surgery, who have chronic pain, and it also can be utilized as basic data for the new method of exercise.

• 한국전문물리치료학회지
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• 제14권1호
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• pp.21-27
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• 2007

The purpose of this study was to evaluate isometric trunk extension strength in hemiplegic patients, and to compare that with normal subjects to find a correlation between trunk extension strength and the functional independent degree in hemiplegic patients. Fifteen hemiplegic male patients (mean age $55.2{\pm}10.2$ years) and twenty-five healthy male subjects (mean age $54.6{\pm}10.3$ years) completed isometric trunk extension. Strength was measured at 0, 12, 24, 36, 48, 60, and 72 degrees of trunk flexion. The functional independent degree was assessed by Functional Independence Measure (FIM). Mean isometric trunk extension strength was 91.2 ft-lbs, 120.7 ft-lbs, 142.3 ft-lbs, 156.4 ft-lbs, 173.5 ft-lbs, 184.1 ft-lbs, and 195.3 ft-lbs in the hemiplegic patients group, and 135.6 ft-lbs, 175.6 ft-lbs, 204.4 ft-lbs, 221.9 ft-lbs, 231.2 ft-lbs, 246.8 ft-lbs, and 259.7 ft-lbs in the normal subjects group. The values of isometric trunk extension strength had a descending linear correlation pattern from trunk flexion angle to extension angle. Trunk extension strength in hemiplegic patients was significantly lower than that of normal subjects (p<.05) but did not correlate with the FIM total score (p>.05). Therefore, the isometric trunk extension strength in hemiplegic patients was lower than that of normal subjects and did not correlate with the functional independent degree.

• 재활복지공학회논문지
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• 제10권1호
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• pp.81-86
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• 2016

본 연구는 복부 동시수축 형태에 따라 하지의 근활성도에 어떤 영향을 미치는지에 대해 알아보고자 하였다. 연구대상자는 허리와 하지에 통증이 없고, 근골격계에 이상이 없는 건강한 20대 여성 30명을 대상으로 진행하였다. 복부 이완(Rest), 복부 당기기 기법(ADIM), 복부 브레이싱 기법(ABM)을 유지하는 각 자세에서 무릎의 굽힘없이 발을 능동적으로 바닥으로부터 20cm 올린 상태(ASLR)로 약 10초간 유지하도록 하여 하지의 5개 근육(중간볼기근, 엉덩긴모음근, 넙다리곧은근, 넙다리두갈래근, 앞정강근)의 근활성도를 측정하였다. 연구결과, Rest에서 ASLR을 유지하였을 때보다 ADIM 수축형태로 ASLR 유지할 때 하지의 모든 근육에서 근활성도가 높게 나타났다. 또한 Rest에서 ASLR을 유지하였을 때보다 ABM 수축형태로 ASLR을 유지하였을 때 중간볼기근을 제외한 나머지 근육에서 모두 근활성도가 높게 나타났다. ADIM과 ABM을 비교한 결과 중간볼기근과 앞정강근은 ADIM 수축형태에서, 엉덩긴모음근, 넙다리곧은근, 넙다리두갈래근은 ABM 수축형태에서 통계적으로 유의하게 높은 근활성도가 나타났다. 본 연구의 결과로 체간중심 안정화 운동이 필요한 요통 환자의 선제적 복부 수축형태로서 뿐만 아니라 하지의 선택적 근력강화가 필요한 환자들에게 개별화된 방법으로써 근거를 제시할 수 있을 것이다.

• 재활복지공학회논문지
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• 제8권3호
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• pp.161-168
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• 2014

본 연구에서는 Pneumatic air fitting system을 적용한 기립보조기 제품을 뇌병변 소아환자를 대상으로 기립보조기의 신체 고정용 폼패드(foam pad)와 에어패드(air pad) 사용 시, 뇌병변 장애아동들의 체간 및 하지근육의 수축 양상을 비교 분석하였다. 연구결과, 패드(foam pad vs. air pad) 유형에 따른 근육별 근력 활성도는 차이가 있었다. 이러한 차이는 큰 동작(식사동작)에서 크게 나타나고, 작은 동작(쓰기동작, 읽기동작)이 작게 나타났다. 이는 Pneumatic air fitting system을 적용한 기립보조기 제품 사용 시, 기존 폼패드에 비해 사용자에게 좀 더 편안함을 제공하는 것으로 나타났다.