• Journal of the Korean Society of Physical Medicine
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• v.5 no.3
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• pp.351-362
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• 2010

연구목적 : 수심 깊이에 따른 수중운동이 하지근력에 미치는 영향을 알아보고자 하는데 목적이 있다. 연구방법 : 신경근골격계 질환이 없는 여자 10명을 대상으로 하였고, 무작위로 수성 0.7m 그룹과 1.4m 그룹으로 배치하였다. 수중운동은 1회 40분, 주 3회 6주 동안 적용하였다. Ultrasound MyLab25(Esaote, Italy)를 이용하여 하지근육의 우모각과 밀도를 실험전과 후에 측정하였다. 연구결과 : 골격근 구조의 역학적 특성을 나타내는 우모각 변화를 비교한 결과 0.7m 그룹의 오른쪽 넙다리곧은근과 왼쪽 넙다리곧은근, 앞정강근 그리고 장딴지근에서, 1.4m 그룹의 오른쪽 앞정강근과 장딴지근, 왼쪽 넙다리곧은근에서 통계학적으로 유의한 차이가 나타났으나(p<.05), 수심 깊이에 따른 유의한 차이는 없었다(p>.05). 또한, 질적 특성을 나타내는 근육 영상 밀도 변화를 비교한 결과 0.7m 그룹의 오른쪽 넙다리곧은근, 장딴지근과 왼쪽 넙다리곧은근, 앞정강근, 장딴지근에서 1.4m 그룹의 양쪽 넙다리곧은근, 앞정강근, 장딴지근에서 통계학적으로 유의한 차이가 나타났고(p<.05), 특히 1.4m 그룹에서 현저한 증가를 보였으나 수심 깊이에 따른 유의한 차이는 없었다(p>.05). 결론 : 본 연구에서는 수심 차이에 관계없이 수중운동 후 근밀도와 우모각에 영향을 미치는 것을 확인할 수 있었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.9
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• pp.3991-3998
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• 2012

The aim of this study was to effect of muscle activity on muscle architectural of medial gastrocnemius in chronic stroke patient based on ankle joint degree. The subjects of this study were 10 chronic stroke patients modified Ashworth scale(MAS) 2. Ultrasonographic and dynamometer was measured during resting and maximum voluntary isometric contraction(MVIC) on muscle thickness, pennation angle, fascicle length, MVIC. Result from analysis showed that muscle thickness was thinner in the paretic side than in the non-paretic side(p<.001) and the more plantarflexion increased, the thinner muscle thickness became. And at the time of resting rather than of MVIC significant(p<.001). Result from analysis showed that penneation angle was smaller in the paretic side than in the non-paretic side(p<.001) and the more plantarflexion increased, the larger pennation became. And at the time of resting rather than of MVIC significant(p<.001). Result from analysis showed that fascicle was shorter in the paretic side than in the non-paretic side(p<.001) and the more plantarflexion increased, the shorter fascicle length became. And at the time of resting rather than of MVIC significant(p<.001). The results of this study showed that effect of muscle activity on muscle architectural of medial gastrocnemius in chronic stroke patient based on ankle joint degree. Therefore, Ultrasonographic evaluation of chronic stroke patients according ankle joint degree and muscle activity in the clinical diagnosis and therapy is considered a very useful data.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.12
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• pp.5867-5874
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• 2012

The aim of this study was to find on muscle architectural and tissue compliance of biceps brachii in stroke patient based on elbow joint angle. The subjects of this study were twelve hemiplegic adults after stroke with passive range of motion in the elbow from $10^{\circ}$ to $90^{\circ}$ and Modified Ashworth Scale score 1 to 3 were recruited. Ultrasonography and Myotonometer was used to measure biceps brachii muscle pennation angle, fascicle length, and tissue compliance at the rest condition and pennation angle, fascicle length, and tissue compliance of the biceps brachii muscle were measured in the affected and unaffected sides of people after stroke at 9 different elbow angles ranging from $10^{\circ}$ to $90^{\circ}$ at the rest condition. The results of this study, comparisons found that the pennation angles of the affected biceps brachii muscle were significantly larger(p<.05) than the unaffected muscle in the most extended positions($<40^{\circ}$), whereas the affected fascicle lengths were significantly shorter(p<.05) than the unaffected muscle in most flexed positions($>20^{\circ}$), and the affected tissue compliance were significantly lower(p<.05) than the unaffected muscle in most extended positions($<50^{\circ}$) Therefore, pennation angles, fascicle lengths, and tissue compliance were found to be joint-angle-dependent in both the affected and unaffected sides at the rest condition. Suggest that, the results data can be used as a muscle architectural changes and clinical treatment research in stroke patients.