horizontal abduction
No, a dislocation is when the bones at a joint are forced out of their normal position. A tearing of ligaments due to a twisting action is more likely to cause a sprain, which is damage to the ligaments that connect bones at a joint.
During supination, the elbow joint rotates outward, allowing the palm to face upward. During pronation, the elbow joint rotates inward, causing the palm to face downward.
The action of the supraspinatus is to stabilize the shoulder joint and help prevent downward location of the humerus and to assist in abduction.
During flexion, the shoulder joint allows the arm to move forward and upward, increasing the range of motion. During extension, the shoulder joint allows the arm to move backward and downward, decreasing the range of motion.
The main action of the flexor hallucis longus muscle is to flex the big toe and help in plantar flexion of the ankle joint. It also contributes to support the arch of the foot and assists in propulsion during walking and running.
Shoulder
hamstring
horizontal abduction
flexion exstention
Flexion
A concentric movement would be flexing the elbow and curling a dumbbell towards the shoulder, an eccentric contraction would be the opposite movement ie bringing the dumbbell back down towards the thigh.
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.
National Joint Action Committee was created in 1969.
During a shoulder press, the primary joint actions are shoulder flexion and elbow extension. The shoulder joint allows for the movement of raising your arm overhead, while the elbow joint extends to push the weight up. Additionally, there is some scapular movement involved to stabilize the shoulder blades during the press.
The role of the hamstring muscle group during running is extending and hyperextending the hip joint
The different types of contraction in sport is; Concentric Eccentric you also have to include; joint action e.g. Extension / flexion the agonist / agonistic muscle pairs e.g. hamstrings, quadriceps, biceps, triceps ect. & the joint itself e.g. knee, elbow, shoulder,
Joint Action Committee for Political Affairs was created in 1981.