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- 저자 : Kang-Seong Lee(이강성) (검색결과 3 건)
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연속 반응 시간 과제 수행의 행위 관찰과 운동 상상이 거울신경활성에 미치는 영향
이상열 ( Sang Yeol Lee ),이명희 ( Myung Hee Lee ),배성수 ( Sung Soo Bae ),이강성 ( Kang Seong Lee ),공원태 ( Won Tae Gong ) 대한물리의학회 2010 대한물리의학회지 Vol.5 No.3
Purpose:The object of this study was to examine the effect of motor learning on brain activation depending on the method of motor learning. Methods:The brain activation was measured in 9 men by fMRI. The subjects were divided into the following groups depending on the method of motor learning: actually practice (AP, n=3) group, action observation (AO, n=3) group and motor imagery (MI, n=3) group. In order to examine the effect of motor learning depending on the method of motor learning, the brain activation data were measured during learning. For the investigation of brain activation, fMRI was conducted. Results:The results of brain activation measured before and during learning were as follows; (1) During learning, the AP group showed the activation in the following areas: primary motor area located in precentral gyrus, somatosensory area located in postcentral gyrus, supplemental motor area and prefrontal association area located in precentral gyrus, middle frontal gyrus and superior frontal gyrus, speech area located in superior temporal gyrus and middle temporal gyrus, Broca`s area located in inferior parietal lobe and somatosensory association area of precuneus; (2) During learning, the AO groups showed the activation in the following areas: primary motor area located in precentral gyrus, prefrontal association area located in middle frontal gyrus and superior frontal gyrus, speech area and supplemental motor area located in superior temporal gyrusand middle temporal gyrus, Broca`s area located in inferior parietal lobe, somatosensory area and primary motor area located in precentral gyrus of right cerebrum and left cerebrum, and somatosensory association area located in precuneus; and (3) During learning, the MI group showed activation in the following areas: speech area located in superior temporal gyrus, supplemental area, and somatosensory association area located in precuneus. Conclusion:Given the results above, in this study, the action observation was suggested as an alternative to motor learning through actual practice in serial reaction time task of motor learning. It showed the similar results to the actual practice in brain activation which were obtained using activation of mirror neuron. This result suggests that the brain activation occurred by the activation of mirror neuron, which was observed during action observation. The mirror neurons are located in primary motor area, somatosensory area, premotor area, supplemental motor area and somatosensory association area. In sum, when we plan a training program through physiotherapy to increase the effect during reeducation of movement, the action observation as well as best resting is necessary in increasing the effect of motor learning with the patients who cannot be engaged in actual practice.
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Donghwan Park(박동환),Kang-Seong Lee(이강성) 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.6
본 연구는 만성 뇌졸중 환자를 대상으로 체간 유연성 운동이 앉은 자세 균형, 정적 균형, 보행 척도, 그리고 낙상 위험도에 어떠한 영향을 미치는지를 규명하고자 실시되었다. 만성 뇌졸중 참가자는 대조 그룹(12명)과 체간 유연성 운동 그룹(12명)으로 무작위로 배정되었다. 두 그룹 모두 표준 재활 치료 30분을 실시하였고, 체간 유연성 운동 그룹은 체간 유연성 운동을 일주일에 3번, 6주간 추가로 시행하였다. 모든 참가자는 체간 장애 척도, 정적 균형 능력, 보행 속도, 분당 보행 수, 그리고 낙상 위험도를 운동 전과 운동 종료 후에 평가하였다. 본 연구 결과에서 체간 유연성 운동 그룹은 대조 그룹과 비교하여 체간 장애 척도(t =-3.57, p =.002)와 보행 속도(t =-3.29, p =.003) 그리고 분당 보행 수(t =-2.77, p =.011)는 유의하게 증가하였고, 정적 균형 능력(t =5.37, p <.001)과 낙상 위험도(t =6.33, p <.001)는 유의하게 감소되었다. 또한, 체간 유연성 운동 그룹은 초기 평가와 비교하여 모든 평가 항목에서 유의하게 개선되었다(p <.05). 이상의 결과에서 6주간의 흉추 유연성 운동 후, 만성 뇌졸중 환자에게 있어 앉은 자세 균형 능력, 정적 균형 능력, 보행 척도, 그리고 낙상 위험도에서 긍정적인 효과가 나타났으며, 이후 다른 운동과 비교하여 효과를 검증하는 후속연구가 필요한 것으로 사료된다. The purpose of this study was to examine the effects of thoracic flexibility exercise on sitting balance, static standing balance, gait parameters, and the fall risk of patients with chronic stroke. The participants were randomized into the control (n=12) and thoracic flexibility exercise groups (n=12). Both groups received standard rehabilitation therapy for 30 minutes per session. The subjects in the experimental group performed additional thoracic flexibility exercises 3 times a week for 6 weeks. The trunk impairment scale, static standing balance, gait speed, cadence, and fall risk were assessed for all the participants before and after the intervention. The thoracic flexibility exercise group showed greater improvement than did the control group on the trunk impairment scale (t=-3.57, p=.002), static standing balance (t=5.37, p<.001), gait speed (t=-3.29, p=.003), cadence (t=-2.77, p=.011), and fall risk (t=6.33, p<.001). Furthermore, the thoracic flexibility exercise group significantly improved all the outcomes compared to the baseline values (P<.05). This study showed that the thoracic flexibility exercise improved the functional ability of patients with chronic stroke.
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