Isotonic contractions is a type of contraction which can cause the muscle to change length as it contracts and resulting in a body part being able to move. There are two types of isotonic contraction. Concentric contractions are a type of contraction which causes the muscle to shorten as it contracts. An example of it can be, the bending of the elbow from straight to fully flexed out as this causes a concentric contraction of the biceps. Concentric contractions are the most common type of muscle contraction and occur regularly in everyday life as well as in sporting movement. Another type of contraction is eccentric contraction which is the opposite of concentric. It occurs when the muscle lengthens as it contracts. This is less common and
