MUSCLE PHYSIOLOGY

Detailed explanation-1: -Overview. In an isometric muscle contraction, the muscle fires (or activates with a force and tension) but there is no movement at a joint. In other words, the joint is static; there is no lengthening or shortening of the muscle fibers and the limbs don’t move.

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.

Detailed explanation-3: -Isometric contraction: Muscles don’t actually need to move (shorten or lengthen) at all to contract or develop tension. An isometric contraction refers to any contraction of muscles where little or no movement occurs.

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.

Detailed explanation-5: -An isometric contraction is a muscle contraction without motion. Isometric contractions are used to stabilize a joint, such as when a weight is held at waist level neither raising nor lowering it. Dynamic contractions are muscle contractions with a fixed amount of weight.