• 대한지역사회작업치료학회지
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• 제7권2호
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• pp.1-8
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• 2017

목적 : 본 연구는 정상 성인을 대상으로 삼킴 시 물의 온도와 양에 따른 목뿔위근육과 목뿔아래근육의 활성도를 측정하여, 임상에서 삼킴장애를 평가하기 위한 기초자료로 활용하고자 하였다. 연구 방법 : 건강한 성인 27명을 대상으로 물의 양과 온도에 따른 목뿔위근육과 목뿔아래근육의 근활성도를 비교하기 위하여 양은 3 mL, 20 mL로, 온도는 $4^{\circ}C$, $22^{\circ}C$, $40^{\circ}C$로 각각 설정하였고, 대상자별로 기준값(reference voluntary contraction, %RVC)을 설정하기 위하여, 침을 삼키는 동안 오른쪽 및 왼쪽 목뿔위근육과 목뿔아래근육의 활성도를 3회 측정하여 평균값을 사용하였다. 연구 장비는 안드로이드 기반 근전도 측정 장비인 2EM(4D-MT, Relive, Gimhae, Korea)을 이용하여 자료를 수집, 처리하였다. 결과 : 양을 기준으로 비교했을 때 왼쪽 목뿔아래근육은 $4^{\circ}C$, $22^{\circ}C$, $40^{\circ}C$에서 (p=.00; p=.00; p=.00), 오른쪽 목뿔아래근육은 $22^{\circ}C$와 $40^{\circ}C$에서 (p=.01; p=.01), 왼쪽 목뿔위근육은 $4^{\circ}C$에서 (p=.03), 3 mL 물보다는 20 mL 물을 삼킬 때 근활성도가 증가하였다. 온도를 기준으로 분석한 결과 20 mL의 물을 삼킬 때 $4^{\circ}C$, $22^{\circ}C$ 보다는 $40^{\circ}C$ 조건에서 오른쪽 목뿔위근육의 근활성도가 유의하게 감소하였다 (p=.04). 결론 : 20 mL가 3 mL보다 오른쪽 및 왼쪽 목뿔아래근육, 왼쪽 목뿔위근육에서 근활성도가 유의하게 증가하였고, $40^{\circ}C$가 $4^{\circ}C$, $22^{\circ}C$보다 오른쪽 목뿔위근육에서 근활성도의 유의한 감소를 보였으나, 양과 온도를 모두 고려한 일부조건에서만 의미가 있었다. 추후에는 점도, 맛 등의 다른 변수를 고려하여 건강한 대상자 뿐 아니라 신경계 손상환자를 대상으로 한 임상연구가 더 필요할 것이다.

• 대한산업공학회지
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• 제33권1호
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• pp.44-51
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• 2007

The purpose of this study was to identify the relationship between the cumulative fatigue of trunk muscles andthe period of recovery time during repetitive lifting and lowering tasks with symmetric and asymmetric postures.Ten subjects participated in the experiment. Subjects had 1, 2, 3, 4 and 5 minutes recovery time respectivelywhile they were performing the lifting and lowering task repeatedly for 3 minutes with the weight equivalent to25% level of MVC. EMG signals from ten trunk muscles were collected and the fatigue level was analyzedquantitatively. In results, the local muscle fatigue was no longer accumulated when 5 minutes recovery time wasgiven in symmetric position. For asymmetric position, it took longer minutes to prevent the fatigue accumul-ation. Different trunk muscles indicated slightly different recovery patterns in terms of MPF (Mean Powerfrequency) value.This result would help ergonomist design the length of recovery time to control the cumulative fatigue of trunkmuscles in industry with repetitive lifting and lowering task.

• 대한물리의학회지
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• 제8권3호
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• pp.379-385
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• 2013

PURPOSE: This study is research about deep trunk muscles (DTM) that is important and serve to control the movement of the trunk to provide stability during movement for human. In this study, trying to prove a change of DTM of aging in the ultrasound image. METHODS: We measured via an ultrasound image during rest and contraction of DTM in 42 young and 48 old people, and then we measured the change of thickness and symmetry. RESULTS: Symmetry showed a significant difference only external oblique (EO) in the young(p<.05). In the elderly, it was found that ratio of contraction was greater transverse abdominis than EO. CONCLUSION: I considered it could lead to improvement of activity of daily life by applying intervention for recovery of motor control of TrA for the elderly in clinical practice.

• Asian-Australasian Journal of Animal Sciences
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• 제5권4호
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• pp.629-634
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• 1992

Seventeen Japanese Black steers were used to evaluate the influence of slaughter weight (550 kg, 600 kg or 650 kg), sire (two sires), concentrate feeding (barley or corn) and muscle (six muscles) on the following characteristics: pH value, cooking loss, shear value, moisture and crude fat contents. Crude fat contents were higher, and moisture content and shear values were lower in muscles from the large slaughter weight group 650 kg than those from other slaughter weight groups. Cooking loss, shear value, moisture and crude fat contents differed between sires. Corn feeding increased crude fat content in muscle compared to barley feeding. Muscles containing a large amount of intramuscular fat showed lower shear values and less cooking loss than those containing a small amount of intramuscular fat.

• 대한통합의학회지
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• 제5권4호
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• pp.49-55
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• 2017

Purpose : In this study we tested the hypothesis that eucommia ulmoides (EU) extract would improve disuse-induced muscle atrophy following hindlimb immobilization. Method : The hindlimb immobilization was performed with casting tape to keep the left ankle joint in a fully extended position. The rats in EU treated group were orally administrated with eucommia ulmoides water extract. After 2 weeks of immobilization, all animals were sacrificed, and the whole gastrocnemius muscles were dissected from both legs. The morphology of right and left gastrocnemius muscles in both EU and control groups were assessed by hematoxylin and eosin staining. Results : Eucommia ulmoides extract represented the significant protective effects against the reductions of the gastrocnemius muscles weight and average cross section area to compared with Control group. Conclusion : Eucommia ulmoides has protective effects against immobilization induced muscle atrophy.

• The Journal of Korean Physical Therapy
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• 제27권5호
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• pp.351-355
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• 2015

Purpose: This study was conducted to determine how stimulation using Russian current changes isokinetic exercise performance of quadriceps muscle and its antagonist muscles. Methods: Subjects were 20 20-year-old healthy adults who were instructed in the flexion to extension of knees in angular velocity $60^{\circ}/sec$ and $180^{\circ}/sec$ using a Biodex (Biodex system 3). We measured the difference in muscle performance between the Russian current stimulated at the same time during the flexion to extension of knees and not stimulated. Results: The results showed that when Russian current stimulation was applied at the angular velocity $60^{\circ}/sec$, the flexed and extended muscles and the angular velocity $180^{\circ}/sec$ increased significantly, but the peak torque of flexing muscles at the angular velocity $180^{\circ}/sec$ did not increase. Conclusion: These findings suggest that Russian current stimulation with isokinetic exercise of the knee joint could affect the quadriceps muscle and its antagonist muscle performance of muscle strength and endurance.

• 한국소음진동공학회논문집
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• 제20권8호
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• pp.761-766
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• 2010

The goal of this study is to analysis natural frequency for different static postures of human leg. To perform this research human leg is modeled by multi-body modeling for the musculoskeletal system. This leg model has biarticular muscles which acting on two joints and the muscles represents some of the major muscles, such as hamstring, of the upper and lower limbs. To obtain each static equilibrium position energy method is employed and to analysis natural frequency linearization method for constrained mechanical system is employed. Static equilibrium position depends on some parameter or condition such as hamstring stiffness or external force. Making a change these parameter the aim of this research can be performed.

• 대한치과의사협회지
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• 제50권10호
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• pp.616-619
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• 2012

The aim of this study was to clarify the arrangement of the zygomaticus major muscle, and to describe morphology of zygomaticus minor muscle. After a detailed dissection, the zygomaticus muscles were observed in 66 embalmed cadavers. It was found that the insertion of zygomaticus major was divided into superficial and deep bands(42/70, 60%). Zygomaticus minor was inserted not only upper lip also alar portion(5/54, 9.2%). The arrangement and insertion patterns of the zygomaticus muscles in this study are expected to provide critical information for understanding or smile pattern and treatment or fold.

• 대한추나의학회지
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• 제5권1호
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• pp.117-133
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• 2004

The purpose of this article is making a contribution to add the knowledges of meridian muscles and myofascial meridians of lower limb that relate with gait and basic movements. We have researched on the gait analysis, basic analysis of articular movement and the related muscles. In addition this article is suggested to study about the therapy with apply meridian muscles and myofascial meridians to lower limb's motor disturbance.

• 대한추나의학회지
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• 제5권1호
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• pp.251-262
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• 2004

The purpose of this article is to contribute to the knowledge of meridian muscles and myofascial meridians of upper limb that relate with normal movement and getting a glass of water. We researched on analysis of normal articular movement and the related muscles. In addition this article is suggested to study about the Therapy with apply meridian muscles and myofascial meridian lines to upper limb's motor disturbance.