Question

The principal difference between isometric and isotonic exercises is the __________. A. use of free weights and weight machines B. rate of calories burned during exercise C. change in muscle length during exercise D. type of muscles exercised

Answer 1

The answer your looking for is C. change in muscle length during exercise.

Answer 2

Isometric exercise involve muscle contraction without a change in the length of the muscle, while isotonic exercises involve muscle contraction with a change in the length of the muscle.

The principal difference between isometric and isotonic exercises is the change in muscle length during exercise. Correct answer: C