著者
小栢 進也 沖田 祐介
出版者
日本基礎理学療法学会
雑誌
日本基礎理学療法学雑誌 (ISSN:21860742)
巻号頁・発行日
vol.20, no.2, pp.22-29, 2017-11-08 (Released:2018-09-26)

Musculoskeletal simulation models that estimate the muscle tension force are widely used to explain muscle and joint function during motion. This model has an advantage to calculate muscle tension force and joint contact forces during motion with noninvasive gait measurement. The musculoskeletal simulation model-based analysis enables easy access for researchers to predict the joint contact force during human motion and determine the risk of osteoarthritis. It can also clarify the direct relationship between muscle tension force and joint angular acceleration or acceleration of the center of mass. Determination of which muscle supports body weight or controls joint motion will provide basic knowledge for physical therapists. In addition, determination of how patients maintain kinematic equilibrium during motion can help understand the patient-specific compensated strategy and decide on an appropriate intervention. This paper focuses on the introduction of the basic concept of musculoskeletal simulation analysis and applications of the result of previous studies to motion analysis in physical therapy.
著者
髙木 武蔵 久保 大輔 鈴木 智高 菅原 憲一
出版者
日本基礎理学療法学会
雑誌
日本基礎理学療法学雑誌 (ISSN:21860742)
巻号頁・発行日
vol.23, no.1, pp.107-116, 2021-03-08 (Released:2021-03-09)

The purpose of the present study was to examine the effect of changes in the trunk position on the H-wave and motor evoked potential MEP) of the tibialis posterior TP) muscle in healthy subjects, and clarify the necessity of postural control for the treatment of spastic clubfoot in stroke patients. The participants were 13 healthy people 6 men, mean age 21.6±1.3 years). The following measurements were obtained with the participants in trunk flexion or trunk extension in the sitting position. The electromyography reaction time of ankle dorsiflexion as well as the H-wave and MEP of the TP were measured. The effect of the trunk position on each measured value was determined. When the tibialis anterior TA) muscle was at 5% and 20% of the maximum voluntary contraction MVC), the H wave of the TP was significantly lower in the trunk extended position than in the trunk flexed position. There was no significant difference in the MEP during the different trunk positions at 5% and 20%MVC of the TA. However, under the condition of imaging 20%MVC of the TA, the MEP was significantly higher in the trunk extension position. It was revealed that the spinal reflex of the TP was suppressed by maintaining trunk extension. Moreover, it was suggested that excitability changes in the primary motor cortex of the TP might be involved in this process.
著者
梅原 潤 市橋 則明
出版者
日本基礎理学療法学会
雑誌
日本基礎理学療法学雑誌 (ISSN:21860742)
巻号頁・発行日
vol.22, no.1, pp.32-38, 2019

<p>Shoulder complex consists of sternoclavicular, acromioclavicular, glenohumeral, and scapulothoracic joint and is one of the largest and most complex joint in human body. The normal movement of these joint is required for shoulder function. In particular, to keep the large range of motion of shoulder complex, the movement of scapulothoracic joint referred to as scapular movement is essential for its flexible movement. Scapular dyskinesis has been defined as the set of abnormal position and movement of scapula and was seen in patient with shoulder disease such as impingement syndrome and rotator cuff tear. One cause of scapular dyskinesis is the increase in stiffness of soft tissue such as muscles. Shear wave elastography is an attractive technique to quantify muscle mechanical property. We applied this technique to verify the efficiency of stretching maneuvers for individual muscle used in physical therapy. In this review article, we focused pectoralis minor muscle, which is one of the causes of scapular dyskinesis, and provided the knowledges about effective stretching maneuver for this muscle and interaction between scapular movement and muscle stiffness of this muscle.</p>
著者
加藤 拓也 谷口 圭吾 池田 祐真 本村 遼介 片寄 正樹
出版者
日本基礎理学療法学会
雑誌
日本基礎理学療法学雑誌 (ISSN:21860742)
巻号頁・発行日
vol.19, no.2, pp.65-71, 2016-08-03 (Released:2018-09-28)

The purpose of this study was to determine the relationship between the neuromuscular activation patterns of hip adductor longus (AL), adductor magnus (AM) and hip joint angle during isokinetic hip flexion and extension. For 9 healthy men, surface electromyography was recorded at adductor longus, adductor magnus, rectus femoris, biceps femoris, semitendinosus muscles during isokinetic hip flexion and extension by three different velocities: 60 deg/sec, 90 deg/sec and 120 deg/sec, respectively. The normalized root mean square (RMS) of AL during hip flexion was significantly higher than that of the AL during hip extension. The normalized RMS of AL during hip flexion in 10°to 40°was significantly higher than that in 60° to 70° . The normalized RMS of AM during hip extension was significantly higher than that of the AM during hip flexion. These results suggest that AL is specifically recruited at the hip shallow flexed position of hip flexion and AM is recruited during hip extension.