An isometric contraction is one in which:

easy

AThe muscle shortens while force stays constant

The muscle length stays constant while tension increases or is maintained

CThe muscle lengthens with no force produced

DThe tendon shortens but the muscle does not

ENo cross-bridges form

Explanation

In isometric contractions, the muscle produces force but does not change length (e.g., holding a heavy object still). Cross-bridges still cycle.

Source: entermedschool.org