Answer:
Exercise in which body parts do not move. An example would be planks as the user does not move or bend any joints - isometric exercise.
Type of exercise in which movement and velocity is kept constant through the full range of motion. An example would be a stationary bike, which is constant leg motion by the user - isokinetic exercise.
Exercise in which body parts move. An example would be squats, which strains the muscles while moving the joints while applying a constant amount of weight - isotonic exercise.
Explanation:
Exercising our bodies is essential to our overall health, and there are many different ways to do them, each type having different approaches and benefits.
Isometric exercise (meaning 'same length'), for example, puts a strain on the muscles without having to bend any joint, which makes it a perfect type of exercise for people recovering from injuries and people who suffer from different kinds of joint diseases such as arthritis. Isometric exercise also helps you improve your stability.
Isokinetic exercises (meaning 'same speed') usually are done in specific machines where speed and motion are controlled and are recommended for athletes that need to train particular things like increasing the force when they're throwing a baseball.
Isotonic exercise (meaning 'same tension'), on the other hand, makes use of the movement of the joints to carry the same weight over and over again. Isotonic exercises are the most frequently used and are great for achieving strength.