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Full-Text Articles in Biomechanics
A Comparison Of Teres Minor And Infraspinatus Muscle Activation In The Prone Position, Masaaki Tsuruike, Todd S. Ellenbecker
A Comparison Of Teres Minor And Infraspinatus Muscle Activation In The Prone Position, Masaaki Tsuruike, Todd S. Ellenbecker
Faculty Research, Scholarly, and Creative Activity
Background
The electromyography (EMG) activity of the teres minor (TMi) and infraspinatus (IS) muscle has been demonstrated to vary depending on the arm position, such as in the coronal or scapular position, during intervention exercises. This may be reflected by different EMG activities demonstrated between the TMi and IS muscle during the acceleration and deceleration phases of the pitching motion. Tenderness in the scapular attachment site of the TMi muscle is often seen in baseball pitchers after pitching but not the attachment site of the IS muscle. However, few studies have investigated an interaction between TMi and IS muscle activity …
Electromyography Activity Of The Teres Minor Muscle With Varying Positions Of Horizontal Abduction In The Quadruped Position, Masaaki Tsuruike, Todd S. Ellenbecker, Connor Lauffenburger
Electromyography Activity Of The Teres Minor Muscle With Varying Positions Of Horizontal Abduction In The Quadruped Position, Masaaki Tsuruike, Todd S. Ellenbecker, Connor Lauffenburger
Faculty Research, Scholarly, and Creative Activity
Background
The teres minor (TMi) muscle exposed relatively high activity during the acceleration and deceleration phases of the throwing motion, compared with the infraspinatus muscle. However, few studies have identified TMi muscle activity in intervention exercises. The purpose of this study was to investigate TMi muscle activities in different horizontal adduction positions in the quadruped horizontal abduction exercise. This study hypothesized that TMi muscle activity would differ in response to resistance application across different horizontal adduction positions.
Materials and methods
Nineteen collegiate baseball players volunteered their participation. Raw electromyography activity of the TMi muscle along with 7 different muscles attached …