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When the rectus abdominis muscle contracts concentrically, it primarily facilitates trunk flexion. This movement involves bending forward at the waist, bringing the rib cage closer to the pelvis. Additionally, it aids in stabilizing the pelvis and spine during various physical activities. This contraction is essential for actions like sit-ups and other core-strengthening exercises.
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What movement occurs when the subscapularis contracts concentrically?
When the subscapularis muscle contracts concentrically, it performs internal rotation of the shoulder joint. This movement involves rotating the arm inward toward the midline of the body.
What muscle contract concentrically during the lifting phase of an overhead dumbbell press exercise?
During the lifting phase of an overhead dumbbell press, the primary muscles that contract concentrically are the deltoids, particularly the anterior deltoid, as well as the triceps brachii. The pectoralis major also plays a significant role in assisting the movement. Additionally, the upper trapezius and serratus anterior contribute to stabilizing the shoulder girdle as the arms press the weights overhead.
What muscle concentrically contracts when descending stairs?
Quads
Which muscle concentrically accelerates dorsiflexion?
Anterior tibialis
When a muscle contracts concentrically the antagonist contracts eccentrically?
When a muscle contracts concentrically, it shortens to produce movement, while the antagonist muscle, which opposes that movement, contracts eccentrically to control the motion. This eccentric contraction allows the antagonist to lengthen under tension, providing stability and preventing injury by absorbing some of the force generated during the concentric contraction. This coordinated action helps maintain balance and control during movements.
What muscle is the fascicles concentrically arranged around an opening?
Orbicularis
What movement does the arm make when the triceps muscle contract?
The biceps muscle relaxes!!!!!=)
What is the muscle's role in the body?
to contract to cause movement.
What kind of cells in your body can contract?
Muscle cells contract, causing movement and our heartbeat.
What are the only things a muscle can do?
A pull is the only action a muscle can perform.
What cells expand and contract to move the body.?
Muscle cells
What movement occurs when the infraspinatus contracts concentrically?
When the infraspinatus muscle contracts concentrically, it primarily facilitates external rotation of the shoulder joint. This movement is crucial for various activities that involve lifting the arm away from the body or throwing motions. Additionally, the infraspinatus plays a role in stabilizing the shoulder by maintaining the position of the humeral head in the glenoid cavity during arm movements.
