Question

Discuss the importance of wrist positioning, neutral, pronated and supinated, when performing a bicep curls. Be sure to include what muscles are involved in the motion and how joint movements can alter the contribution of these muscles. Further, discuss the important of leg positioning (neutral, internally rotated, and externally rotation, when performing leg extensions during resistance training. Be sure to include what muscles are involved in the motion and how joint movements can alter the contribution of these muscles.

Answer 1

Wrist positioning is important because it helps to increase the grip strength. if the ligaments of the wrists are loose while performing biceps curls it can cause pain and discomfort.When someone begin with a palms-in (neutral) grip rather than palms-up, it forces them to supinate (turn your wrist up) during the curl to arrive in the palms-up position. That twist allows to take the biceps through its full range of motion, helping to develop the muscle more fully. Then at the top of the curl, you can continue with even more twisting to turn your palms out even more. The brachialis, and brachioradialis are the muscles involved.

biceps, latissimus dorsi, posterior deltoids, and rhomboids are the muscles used in resistance training. Leg positioning such as neutral, internal rotation and external rotation helps to

• improved muscle strength and tone – to protect your joints from injury.
• maintaining flexibility and balance, which can help you remain independent as you age.
• weight management and increased muscle-to-fat ratio – as you gain muscle, your body burns more kilo joules when at rest.