Quantitative Evaluation of Muscle Tone Using Elastic Ultrasound

Brief Summary: The test subjects were selected from patients with clinical manifestations in muscle tone and healthy volunteers. Elbow flexor is the main target muscle. Fifty patients and 50 healthy subjects were given three assessment methods to measure muscle tension: modified Ashworth rating scale, elastic ultrasound technology and surface electromyography, and the data obtained by these three methods will be statistically analyzed and discussed.

Recruitment & Eligibility

Inclusion Criteria

There are clinical manifestations of changes in muscle tension of the elbow flexor group;
Subject's diagnosis is clear;
The degree of joint mobility meets the method of muscle tension assessment.

Exclusion Criteria

Has serious diseases such as heart, lung, liver, kidney, etc., cardiac function grade is greater than Grade I (NYHA), has symptoms and signs or examination results such as respiratory failure;
History of muscle disorders;
Recent (within 6 months) history of external injury, fracture or surgery of the limb;
Are using drugs that affect muscle tone;
Severe osteoporosis;
Acute phase of inflammation
Acute limb thrombosis of the subject;
Pregnancy.

Primary Outcome Measures

Name	Time	Method
shear wave elastography	through study completion, an average of 1 year	use shear wave elastography to evaluate Young's modules of target muscles at each angle of the joint during the passive movement
surface electromyography	through study completion, an average of 1 year	use surface electromyography to evaluate average EMG, integrated electromyogram and root mean square of the target muscles
Modified Ashworth Scale	through study completion, an average of 1 year	Modified Ashworth Scale of the target muscles

Secondary Outcome Measures

Name	Time	Method

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