The teres minor, infraspinatus and posterior deltoid muscles act eccentrically as a restraint to humeral head translation while the serratus and rhomboids aid in scapular stability during deceleration as the arm is extended towards home plate during the follow through. What type of movement is throwing a baseball?
What muscles are contracted during acceleration phase?
A study was done by Gowan et al found that during the acceleration phase, the contraction of subscapularis, serratus anterior and latissimus dorsi was considerably high in professional athletes compared to amateur athletes. Triceps is also at its greatest activity during this phase as the elbow violently moves into extension and across the body.
Is the humerus attached to the scapula?
Although the majority of the muscle mass is located anteriorly to the humerus, it has no attachment to the bone itself. Attachments: Both heads originate from the scapula and attach via the bicipital aponeurosis to the fascia of the forearm.
What muscles work to rotate the scapula?
Anterior deltoid and pectoralis major work concentrically at the glenohumeral joint. Upper trapezius, serratus anterior and lower trapezius work to produce upward rotation of the scapula. The abdominal muscles work to rotate and stabilize the trunk.
What does the humerus bone do?
The humerus is a long bone in the arm that runs from the shoulder to the elbow. Anatomically, it interacts with the scapula to form the shoulder joint and the radius and ulna of the lower arm to form the elbow joint.
What muscles decelerate arm throwing?
In addition to teres minor, infraspinatus, supraspinatus and deltoid also present high MVIC to decelerate the arm in space as it moves forward.
Which muscles are affected by the follow through or deceleration phase of the throwing motion?
Phase 5 Pitching, Follow-Through (Deceleration) The deceleration and final stage of the pitchers arc of motion involves utilising the posterior shoulder muscles of the Teres minor, the biceps, the scapular muscles, the serratus anterior, rhomboids and the middle and posterior deltoids.
Which of the following muscles act eccentrically to decelerate the arm during the follow through phase of the throwing motion?
The teres minor, infraspinatus and posterior deltoid muscles act eccentrically as a restraint to humeral head translation while the serratus and rhomboids aid in scapular stability during deceleration as the arm is extended towards home plate during the follow through.
What muscles are used in throwing?
The core muscles of the abdominals and obliques are involved in the balance and weight transfer of the throwing motion. The large muscles of the legs and lower body, such as the calves, quadriceps, hamstrings and glutes, all help to drive and provide power as you step into the throw.
Where is the infraspinatus muscle?
shoulderYour infraspinatus muscle is a thick triangular muscle located at the back of your shoulder. It's attached to the top of your upper arm bone (humerus) and your shoulder blade (scapula).
Where is the subscapularis muscle?
shoulderSubscapularis is a triangular shoulder muscle located in the subscapular fossa of scapula. Attaching between the scapula and the proximal humerus, it is one of the four muscles of the rotator cuff, along with supraspinatus, infraspinatus and teres minor.
What is supraspinatus muscle?
Supraspinatus is the smallest of the 4 muscles which comprise the Rotator Cuff of the shoulder joint specifically in the supraspinatus fossa. It travels underneath the acromion.
What muscle group is active at the shoulder joint during the follow through phase of a baseball pitch?
The teres minor is highly active during this phase, resisting anterior humeral head translation, horizontal adduction, and internal rotation.
Where is the teres minor?
shoulder jointThe teres minor arises from the posterior surface of the scapula, directly adjacent to the upper part of its lateral border. The upper fibers of the muscle culminate in a tendon that inserts onto the greater tubercle of the humerus—the tendon blends into the capsule of the shoulder joint.
What muscles make you throw harder?
Muscles to Work Out to Throw Baseballs HarderShoulder Muscles. The deltoids are the muscles of your shoulder, which play a crucial role in rotating your arm. ... Triceps. Your triceps are located on the back of your upper arm and aid in the process of extending your arm at the elbow. ... Latissimus Dorsi. ... Abdominals. ... Quadriceps.
How is the triceps muscle used in an overhand throw?
Strong Arms Located on the back of the upper arm, the triceps – a three-headed muscle group – provides power when you are releasing the ball and pushing it forward.
What are the muscles joints and bones used when throwing a ball?
Analysis of Throwing Most actions are rotational in the transverse plane and longitudinal axis and the two joints primarily involved are the elbow and shoulder. The elbow is a hinge joint formed by the humerus and ulna. The shoulder is a ball and socket joint formed between the humerus and the scapula.