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

THIS USER ASKED 👇

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

THIS IS THE BEST ANSWER 👇

The main difference between isometric and isotonic exercises is the change in muscle length during exercise.