What is an isotonic contraction?
Isotonic contraction is a form of muscular exertion principally characterized by a change in both muscle length and joint angle. Also known as dynamic contraction, isotonic exercises typically involve the rhythmic, repetitive motion of large muscle groups. This is the type of muscular exertion that is most often used during strength training and cardiovascular exercise, resulting in net gains in muscular size, strength, and endurance.
