Question

In __________ contraction the amount of tension increases during contraction, but the length of the muscle does not change.

Answer 1

Isometric contraction occurs when muscle tension increases without changing the angle of a skeletal joint.

Step-by-step explanation:

An isometric contraction occurs as the muscle produces tension without changing the angle of a skeletal joint. Isometric contractions involve sarcomere shortening and increasing muscle tension but do not move a load. For example, if one attempts to lift a hand weight that is too heavy, there will be sarcomere activation and shortening to a point, and ever-increasing muscle tension, but no change in the angle of the elbow joint. In everyday living, isometric contractions are active in maintaining posture and maintaining bone and joint stability.

Answer 2

Isometric

Step-by-step explanation:

Isometric contraction may be defined as the type of contraction that produces the muscle tension. No change in the angle of the skeletal joint is noticed in the isometric contraction.

The sarcomere shortens during the muscle contraction this causes the increase in the muscle tension of the muscle. The length of the muscle do not change in the isometric contraction. The isometric contraction is important for maintaining posture.

Thus, the correct answer is isometric contraction.