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Isometric- Isometric exercise or isometrics are a type of strength training in which the joint angle and muscle length do not change during contraction (compared to concentric or eccentric contractions, called dynamic/isotonic movements).
Isotonic- Isotonic exercise is one method of muscularexercise. In contrast, isometric exercise is when muscular contractions occur without movement of the involved parts of the body. Isotonic comes from the Greek "iso-", equal + "tonos", tone = maintaining equal (muscle) tone.
Isokinetic - isokinetic Exercise performed using a specialized apparatus that provides variable resistance to a movement, so that no matter how much effort is exerted, the movement takes place at a constant speed.
Variable resistance exercises - Variable resistance training is the use of varying degrees of force to a particular muscle while working out. An example of variable resistance training is using a deltoid exercise machine at the gym.Please let me know if you need any clarification. I'm always happy to answer your questions.awaiting a positive feedback. thank you.
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