MUSCLE PHYSIOLOGY

Detailed explanation-1: -Isometric contractions are contractions in which there is no change in the length of the muscle. No joint or limb motion occurs. Isotonic contractions occur when the muscle changes length, producing limb motion. Concentric contractions occur when the muscle shortens.

Detailed explanation-2: -Isometric exercises are tightening (contractions) of a specific muscle or group of muscles. During isometric exercises, the muscle doesn’t noticeably change length. The affected joint also doesn’t move. Isometric exercises help maintain strength. They can also build strength, but not effectively.

Detailed explanation-3: -Isometric contraction: A muscle contracts, but the joint it controls does not move. Think of holding a weight with your elbow bent to 90 degrees and does not move. Isotonic contraction: A muscle contracts and the joint angle it controls increases and decreases while the muscle either shortens or lengthens.

Detailed explanation-4: -Isotonic means “same tension” (the weight on your muscles stays constant) while isometric means “same length” (your muscles do not get longer or shorter). It’s also important to know that you have the ability to make certain moves isotonic or isometric depending on your goals.