• 한국체육학회지인문사회과학편
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• 제55권3호
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• pp.543-551
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• 2016

본 연구는 스마트 폰을 사용(≥ 60분/일)하는 건강한 20대 남성 50명을 대상으로 두부의 움직임에 직접 관여하는 경추부 근육(두판상근, 흉쇄유돌근, 상부승모근)에 연부조직 측정기 Myoton을 이용하여 스마트 폰 사용정도와 경추부 근육의 기계적 속성의 관련성을 규명하려는 목적으로 수행되었다. 스마트 폰 사용정도는 전용의 중독 척도설문지를 이용하였다. 경추부 근육의 기계적 속성은 Myoton을 이용하여 근 긴장도(frequency), 동강성(stiffness), 점탄성(decrement), 근변형률(creep) 및 회복시간(relaxation)의 반영지표를 각각 산출하였다. 스마트 폰 사용에 의한 중독 점수와 경추부 근육의 기계적 속성을 반영하는 각 지표와의 관련성을 평가하기 위해 상관분석을 실시하였다. 연구 결과 기계적 속성을 반영한 모든 parameters의 변동계수는 각각 2% 미만이었으며, 측정자 신뢰도인 급내상관계수 역시 높은 신뢰성이 도출되었다(ICC>.9, p<.01). 스마트 폰 중독점수는 상부승모근의 근 긴장도(r=.353, p<.05)와 동강성(r=.346, p<.05), 흉쇄유돌근의 점탄성(r=-.284, p<.05)과 근 변형률(r=.288, p<.05)과의 유의미한 상관이 나타났고, 특히 두부 통증과 관련된 두판상근의 근 긴장도(r=-.368, p<.01), 점탄성(r=-.405, p<.01), 동강성(r=-.424, p<.01)과의 높은 상관계수로 스마트 폰 과사용과 밀접한 관련성을 나타내었다. 결론적으로 젊은 남성들에 있어서 스마트 폰 과사용은 경추부 근 손상과 통증 및 두통에 유의미한 관련성이 있음을 간접적으로 시사하며, Myoton은 경추부 근육 성질을 예측 및 평가할 수 있는 유용한 기기임을 알 수 있었다.

• 한국임상보건과학회지
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• 제5권4호
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• pp.991-997
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• 2017

Purpose. The purpose of this study was to muscle properties analysis of SCM(sternocleidomastoid) Muscle according to posture type when using smartphone. Methods. This study was conducted on 73 college students who are using smartphone. Subjects were analyzed myotonPRO to confirm, prone posture group, stand posture group, drop head above $45^{\circ}$in sit posture on a chair group and drop head below $45^{\circ}$in sit posture on a chair group were measured SCM muscle. The myotonPRO were measured one measurer, total 3 times. Comparative analysis of the each groups were investigated of SCM muscle properties. Results. We found that Frequency, Stiffness, Creep and Relaxation were appeared difference in each posture. F index was increased at drop head below $45^{\circ}$group than stand posture group. S index was increased at drop head above $45^{\circ}$group than prone posture group. C index was decreased at drop head below $45^{\circ}$group and drop head above $45^{\circ}$group than prone posture group. R index was decreased at drop head above $45^{\circ}$group than prone posture group. Conclusions. The muscle properties were appeared difference in each posture of SCM muscle using smartphone.

• 한국융합학회논문지
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• 제9권2호
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• pp.91-99
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• 2018

본 연구에서는 뇌성경직양측마비 아동을 대상으로 융합적인 자세교정치료가 근강직도(muscle stiffness) 및 근활성도(muscle activity)에 미치는 단기적인 영향을 알아보고자 하였다. 연구 대상자는 4세부터 7세의 뇌성경직양측마비 아동 3명(남자2, 여자1)을 대상으로 하였다. 측정부위는 위등세모근, 배곧은근, 큰볼기근이며, 근강직도 측정기(Myoton)와 표면 근전도(EMG)를 이용하여 근강직도와 근활성도를 측정하였으며, 양측 대칭성에 대해서도 알아보았다. 연구결과, 보상작용이 심했던 아동들이 융합적 자세교정 치료 중재 후 전반적으로 위등세모근과 배곧은근에서 근강직도와 근활성도가 감소하였고, 큰볼기근에서는 증가하는 경향을 보였다. 특히 해당 근육에서 왼쪽과 오른쪽의 대칭성이 줄어드는 특성을 보였다. 본 연구에서는 몇 가지 제한점에도 불구하고 융합적인 자세교정치료가 뇌성경직양측마비 아동의 자세교정 측면에서 긍정적인 효과가 있음을 보여 주었다.

• PNF and Movement
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• 제15권1호
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• pp.35-40
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• 2017

Purpose: The purpose of this study was to determine the immediate effects of using the proprioceptive neuromuscular facilitation (PNF) contract-relax technique in the close kinetic chain position on the gait ability and gastrocnemius muscle tone of stroke patients. Methods: The subjects were patients who had strokes due to cerebrum infarction and hemorrhage. The subjects participated in exercise with the PNF contract-relax technique in the standing-on-elbow position with a high table, and the affected lower leg was placed in the posterior position. The PNF contract-relax technique was applied at the position in which the ankle plantar-flexors were in a sufficiently elongated position. After performing twice in each range, while the muscle was elongated, the affected side was moved further back and a new range was set. In each session, the time of contraction was set to 8 seconds, and the resting time was set to 5 seconds; however, if the patient felt tired, they received more resting time during the intervention. The Myoton Pro and 10 m walking test were used to measure the muscle tone and gait ability both pre- and post-intervention. Results: After participating in the program, the muscle tone decreased and the gait ability improved in the ankle plantar-flexors, as determined by the Myoton Pro and 10 m walking test. Conclusion: The PNF contract-relax technique can help to decrease muscle tone in ankle plantar-flexors with hypertonus and increase the gait ability in stroke patients.

• 한국엔터테인먼트산업학회논문지
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• 제15권3호
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• pp.263-268
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• 2021

본 연구의 목적은 생리통이 있는 20대 여성 30명을 대상으로 SSP 치료가 생리통 및 근긴장과 근경직에 미치는 효과를 확인함으로써 생리통 완화를 위한 테라테인먼트중재방법에 대한 기초자료를 제공하고자 실시하였다. 대상자는 부인과 질환이 없고 생리주기가 일정한 여성으로 생리통이 VAS 4점 이상인 자를 선정하였다. 대상자의 치료는 생리첫날 SSP를 SP6 부위에 20분간 실시하였다. 측정은 생리통은 VAS를 이용하였고, 근긴장도와 경직은 Myotone을 사용하여 치료 전과 치료 직후, 치료 3시간 후 총 3번을 측정하였다. 연구결과 생리통은 지속적으로 유의하게 감소하였으며, 근긴장과 경직도 유의하게 감소한 것을 알 수 있었다. 이를 통하여 SSP therapy를 사용한 테라테인먼트 중재 방법이 생리통을 감소시켜 여성건강관리에 효과가 있음을 알 수 있었다.

• 한국가금학회지
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• 제51권2호
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• pp.97-106
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• 2024

본 연구는 육계(Ross 308, Arbor Acres)에서 나타나는 가슴살 경화도를 비침습적 디지털 촉진장치인 MyotonPRO^®를 사용하여 분석하였다. 이 논문의 목적은 육계의 생축에서 가슴 경직성의 변이를 측정할 수 있는가와 그 변이가 다른 형질과 어떤 상관을 갖는 지 알아보는 것이다. 연구결과, Ross 308과 Arbor Acres 모두에서 주령에 따라 가슴살 경화도의 변화가 관찰되었으며, 특히 2주차와 8주차에 높은 심각도를 보였다. 연구된 다양한 측정 형질들은 모두 WB의 발현과 관련이 있음을 보여준다. 또한, 가슴살의 무게와 가슴살 경화도 간에는 높은 양의 상관관계가 관찰되어, 증가하는 가슴살 무게가 가슴살 경화도 증가와 연관될 수 있음을 시사한다. 본 연구에서는 Ross 308과 Arbor Acres 품종의 가슴살 Stiffness를 측정하고 이를 WB 현상이 보고된 Ross 708의 데이터와 비교했으며, Ross 308과 Arbor Acres에서는 Ross 708에 비해 상대적으로 낮은 Stiffness 수치가 관찰되어 WB 현상이 발현되지 않았음을 시사한다. 이 결과는 품종에 따른 가슴살의 특성 차이를 나타내며, WB 발현에 영향을 미치는 요인에 대한 추가 연구가 필요하다고 사료된다. 사양 실험에서 나타난 결과는 Ross 308과 Arbor Acres 품종에서 WB 발생률과 관리 전략에 대한 이해를 높이는데 기여하며, 더 나아가 가금산업에서 WB를 줄이기 위한 유전적 선발 및 사육 관리 기법 개발에 중요한 정보를 제공할 것으로 기대된다. 또한 본 연구에서는 MyotonPRO^® 장비의 효율성과 한계에 대한 평가도 포함되어 있으므로 향후 연구에서는 이 장비의 활용성을 더욱 개선할 수 있는 방안을 모색하는 데 기여하고자 한다.

• 정형스포츠물리치료학회지
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• 제14권2호
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• pp.127-133
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• 2018

Purpose: This study investigated the effects of changing the tilt angle of the exercise bed on physiological characteristics of trapezius, multifidus, and hamstring muscle function. Methods: Twenty elderly who complains of back and lumbar pain or discomfort participated in this study (average age: $64.70{\pm}4.55$ years). The physiological characteristics, including muscle tone (F), dynamic stiffness (S), and elasticity (D) of trapezius, multifidus, and hamstring muscles were measured by a Myoton device at three tilt angles (0, 15, and 30 degrees) during exercise. Results: The muscle tone, dynamic stiffness, and elasticity of the right trapezius and left hamstring muscle showed significant differences (p<0.05) according to exercise bed tilt angle, while the other muscles showed no significant differences. Conclusions: Our results demonstrate that physiological characteristics of the upper and lower extremity muscles are affected ipsilaterally, according to the tilt angles of the exercise bed.

• 국제물리치료학회지
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• 제9권2호
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• pp.1468-1474
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• 2018

The purpose of the study was to investigate the immediate effects of negative pressure soft tissue therapy on muscle tone, muscle stiffness and balance in patients with stroke. In total, 20 patients with stroke and assigned to the negative pressure soft tissue therapy group (NPST, n=10) or, placebo-negative pressure soft tissue therapy group(Placebo-NPST, n=10). Both groups underwent NPST or placebo-NPST once a day during the experimental period. MyotonPRO was used to assess the parameters for muscle tone and stiffness. Biorescue was used to assess the parameters for balance. Each group showed improvements in muscle tone, muscle stiffness, and balance ability (p<.05). Especially, Muscle tone, muscle stiffness, and anterior length in the limit of stability were the significant improvement on NPST group (p<.05). The results of the study suggest that the NPST is effective in improving muscle tone, muscle stiffness, and balance ability in patients with stroke.

• 대한물리의학회지
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• 제14권2호
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• pp.117-124
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• 2019

PURPOSE: This study was to investigate the effects of crocodile breathing exercise on pain, muscle tone, and muscle stiffness of non-specific low back pain patients. METHODS: The subjects were 37 patients with nonspecific low back pain. The patients were divided into two groups. The experimental group (EG) performed crocodile breathing exercise and the control group (CG) performed chest expansion breathing exercise. The intervention was conducted for 10 minutes every day for a total of eight weeks. Pain was measured using a VAS. Muscle tone and stiffness were measured using Myoton PRO. Two points were measured for muscle tone and muscle stiffness. They were measured at 30mm from the spinous process of the L1 and T10 vertebra. RESULTS: Pain, muscle tone and muscle stiffness at the T10 level showed a significant decrease in both EG and CG. Muscle tone and muscle stiffness in the L1 level area decreased significantly in the experimental group but the control group did not show any difference. The only statistically significant difference was observed in the L1 muscle tone between the pre and post intervention values. CONCLUSION: This study suggests that Crocodile breathing is a good method for managing pain, muscle tone, and muscle stiffness in non-specific low back pain patients.

• The Journal of Korean Physical Therapy
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• 제31권1호
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• pp.56-61
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• 2019

Purpose: The spasticity of stroke patients decreases the ankle range of motion and increases the gastrocnemius muscle tone. This study examined the effects of stretching exercise and far infrared irradiation on the ankle function in stroke patients with spasticity. Methods: This study was conducted on 20 stroke patients admitted to Jesaeng General Hospital, who were divided into a study group (stretching exercise with far infrared) and control group (stretching exercise only). The dorsiflexion range of motion was measured using a smartphone and the medial gastrocnemius muscle tone and stiffness were measured using a Myoton pro. Results: With the exception of the non-paretic gastrocnemius muscle tone in the control group, the medial gastrocnemius muscle tone and stiffness decreased significantly in both groups. In both groups, the dorsiflexion range of motion increased significantly. In addition, the experimental group had a significantly higher dorsiflexion range of motion than the control group. On the other hand, there was no significant difference between the two groups in terms of the medial gastrocnemius muscle tone and stiffness. Conclusion: For stroke patients with spasticity, stretching exercises increased the ankle's range of motion and decreased the gastrocnemius muscle tone. The addition of heat therapy further increased the ankle's range of motion. On the other hand, as the sample size was small, future studies should include more subjects.