A plank position is part of a yoga/Pilates workout. The person supports the body on the floor in a prone position with the arms and feet supporting the body. It is little similar to the "up" position of a push-up, held for 30 to 60 seconds. Contraction of the abdominal muscles in a plank is most likely
A)isotonic.
B)eccentric.
C)isometric.
D)concentric.

Question

Quizplus · Accepted Answer

Isometric contractions occur when there is no change in the length of the muscle, but tension is still generated. In a plank position, the abdominal muscles are contracted to maintain a stable position, but there is no movement of the body, making it an isometric contraction.

A Plank Position Is Part of a Yoga/Pilates Workout