Effect of trapezius muscle strength on three-dimensional scapular kinematics

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Effect of trapezius muscle strength on three-dimensional scapular kinematics

[Purpose] This study aimed to investigate the effect of trapezius muscle isometric strength on three-dimensional scapular kinematics in asymptomatic shoulders. [Subjects and Methods] Thirty asymptomatic subjects were included to the study. Isometric strengths of the upper, middle, and lower trapezius muscle were measured using a handheld dynamometer. Three-dimensional scapular kinematics was re...

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Three-dimensional scapular and clavicular kinematics and scapular muscle activity during retraction exercises.

STUDY DESIGN Controlled laboratory study. OBJECTIVES To describe and compare scapular and clavicular kinematics and muscle activity during 6 retraction exercises in young healthy adults (mean +/- SD age, 23.2 +/- 2.4 years). BACKGROUND Based on the association between shoulder injuries and scapular/clavicular movement, muscle activity during various exercises that target muscles surrounding...

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Effects of muscle fatigue on 3-dimensional scapular kinematics.

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Dynamic measurements of three-dimensional scapular kinematics: a validation study.

The validation of two noninvasive methods for measuring the dynamic three-dimensional kinematics of the human scapula with a magnetic tracking device is presented. One method consists of simply fixing a sensor directly to the acromion and the other consists of mounting a sensor to an adjustable plastic jig that fits over the scapular spine and acromion. The concurrent validity of both methods w...

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Three-dimensional scapular kinematics during the throwing motion.

Proper scapular motion is crucial for normal shoulder mechanics. Scapular motion affects glenohumeral joint function during throwing, yet little is known about this dynamic activity. Asymptomatic subjects (10 male and 10 female), ages 21 to 45, were analyzed. Electromagnetic surface sensors on the sternum, acromion, and humerus were used to collect 3-D motion data during three trials of low-vel...

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ژورنال

عنوان ژورنال: Journal of Physical Therapy Science

سال: 2016

ISSN: 0915-5287,2187-5626

DOI: 10.1589/jpts.28.1864