Kinesiology - Angular Kinetics : Label the force, resistance, and axis for each

Question

Kinesiology - Angular Kinetics

: Label the force, resistance, and axis for each of the following

1. Compare exercises - Concentric Hip ABduction and Concentric Hip Adduction. How do the exercises compare to one another? Be specific
2. Eccentric bicep curl, describe the movement. What does an eccentric bicep curl mean, and how does it differ from a concentric curl?
3. What is the force, resistance, and axis for a concentric bicep curl?
4. In the exercise (eccentric chest fly), what muscle is the major mover? How do you know this? What is the origin and insertion of this muscle?
5. How does the Anterior Deltoid Raise differ from the Lateral Raise?

Explanation / Answer

1. Concentric abductor muscles are gluteus maximus and gluteus minimusc muscle which lies outer part of hip. These muiscles helps in stretaching the leg outwards and sidewards. This causes concentric contraction of abductor muscles.

Concentric adductor muscles are adductor brevis, longus and magnus muiscles. These muscles helps in hip adduction so the hegs move towards the center of our body due to concentric contraction of these muscles.

2. Eccentric biceps curl is the negative contraction, that is the muscle lengthen from a shortened position. Eccentric biceps curl mean lengthening of muscle to keep back the weight lifted. So the difference between concentric biceps curl is during which the muscle contracts or shortens to generate a force against resistance that is weight lifted. So concentric biceps curl is a positive contraction.

3. The force generated here is to lift the weight, Concentric bicep curl is against the resistance given by weight lifted. Axis of concentric biceps curl is vertical axis.

4. the musle involved in eccentric chest fly exercise is anterior deltoid and pectoralis muscles. The major mover is pectoralis muscle. origin of this muscle is  Anterior surface of the medial half of the clavicle and Lateral aspects of the manubrium and body of the sternum, the upper six costal cartilages and the aponeurosis of the abdominal oblique . Insertion is  Lateral lip of the bicipital groove of the humerus and anterior lip of the deltoid tuberosity,
Lateral lip of the bicipital groove of the humerus and the anterior lip of the deltoid tuberosity.

5.Anterior deltoid raise is seen during the exercise like pulling or pressing. In this anterior part of deltoid muscles is responsible for this act. Whereas lateral raise is due to middle head of deltoid muscle which is responsible for holding weights at the sides of the body.

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