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Muscles which flex the elbow joint such as the biceps brachii muscle, brachialis muscles and brachioradialis muscle are active to improve leverage. [1] As the biceps originate on the scapula unlike the other two which originate on the humerus, the biceps are inclined to serve a role as a dynamic stabilizer, much as the hamstrings would during a ...
Pullovers can be made to affect either the chest or the back depending on how wide the grip is (barbell) and the position of the shoulders. A research done on the pullover movement using a barbell suggested more effect on the pectoralis major muscle as compared to the latissimus dorsi .
[6]: 123 Inversion occurs at the subtalar joint and transverse tarsal joint. [7] Eversion of the foot occurs at the subtalar joint. The muscles involved in this include fibularis longus and fibularis brevis, which are innervated by the superficial fibular nerve. Some sources also state that the fibularis tertius everts. [6]: 108
Seated military shoulder press. The overhead press, also known as the shoulder press, strict press or military press, is an upper-body weight training exercise in which the trainee presses a weight overhead while seated or standing. It is mainly used to develop the anterior deltoid muscles of the shoulder. [1]
At the glenohumeral joint, movement of the humerus is performed by a combination of transverse abduction, by the posterior and lateral deltoids, [3] and external rotation, by the infraspinatus and teres minor. [4] At the scapulothoracic joint, the middle and lower fibers of the trapezius and the rhomboids contract to perform retraction of the ...
The rotator cuff muscles of the shoulder produce a high tensile force, and help to pull the head of the humerus into the glenoid cavity. The glenoid cavity is shallow and contains the glenoid labrum which deepens it and aids stability. With 120 degrees of unassisted flexion, the shoulder joint is the most mobile joint in the body.
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Major variants: reverse ~ (curling the pelvis towards the shoulders), twisting ~ or side ~ (lifting one shoulder at a time; emphasis is on the obliques), cable ~ (pulling down on a cable machine while kneeling), sit-up ~ (have [chest] touch your knees), vertical crunch (propping up to dangle legs and pulling knees to the [ chest] or keeping ...