hamstring
horizontal abduction
In a lateral raise, the eccentric joint action occurs when the arm is lowered back down after reaching the peak of the lift. During this phase, the deltoid muscles lengthen while controlling the descent of the weights, which helps to maintain tension and stability. This eccentric action is crucial for muscle development and injury prevention, as it promotes controlled movement and strength throughout the full range of motion.
To see eccentric contraction, look at the biceps curl with flexion around the elbow. As you lower a weight, you are working against resistance, letting the joint angle increase to lower that object under your control.The opposite is the concentric contraction were the arm is flexed upward to decrease the angle at the elbow.
In the eccentric phase of a lateral raise, the primary joint action occurs at the shoulder joint, specifically involving shoulder abduction. During this phase, the deltoid muscles, particularly the middle deltoid, control the lowering of the arms back to the starting position. The eccentric contraction helps to maintain tension in the muscles while they lengthen, promoting stability and muscle growth. Additionally, the scapulae may also move slightly to assist in the controlled descent of the arms.
The eccentric joint action during a lateral raise occurs when the deltoid muscles lengthen while controlling the descent of the weights after reaching the peak height of the lift. As you lower the weights back to the starting position, the muscles are under tension, which helps to promote strength and muscle growth. This phase is crucial for muscle development, as it emphasizes control and stability throughout the motion. Overall, the eccentric action aids in preventing injury and improving overall muscle function.
trunk flexion lateral trunk flexion
The lateral raise primarily works the deltoid muscles in the shoulders.
The primary muscles used in the lateral raise exercise are the deltoid muscles, specifically the lateral deltoid.
The standing lateral raise primarily works the shoulders.
The lateral raise exercise primarily works the deltoid muscles in the shoulders.
The lateral shoulder raise exercise primarily targets the deltoid muscles, specifically the lateral deltoid.
The standing lateral raise primarily works the shoulder muscles.