Which muscles act to abduct the leg at the hips in performing a jumping jack exercise?
1) adductor longus
2) gluteus medius
3) gluteus minimis
4) rectus femoris
5) biceps femoris

Question

Quizplus · Accepted Answer

The primary muscles responsible for abducting the leg at the hips in a jumping jack exercise are the gluteus medius and gluteus minimis. The adductor longus actually performs the opposite action of adduction, and the rectus femoris and biceps femoris are primarily involved in extending the leg at the hip joint. Therefore, the best choice is only B.

Which Muscles Act to Abduct the Leg at the Hips