Contraction Isotonic

The isotonic contraction is one of the most common types of muscle contraction. In this type of contraction, the muscle fibers shorten and thicken at the same time, while their tension remains at approximately the same level.

An isotonic contraction occurs when a muscle is subjected to a load that does not change its length. This can be a movement that does not require a change in muscle length, such as lifting or carrying a load. Under such conditions, the muscle fibers will contract and thicken, but their tension will remain approximately the same.

This type of contraction allows the muscle to maintain its shape and not stretch too much when used. This is especially important for muscles that are used to support posture or movement, as they must maintain their properties and not be overused.

However, it should be noted that isotonic contractions may have some limitations. For example, if a muscle is subjected to too much stress or a change in length, its tension may increase, which can lead to overload and damage to the muscle. Therefore, it is important to maintain a balance between the load and the ability of the muscles to contract.

Overall, isotonic contractions play an important role in muscle function and muscle health. It allows muscles to maintain their shape, which is especially important for those who play sports or work in environments where maintaining posture and movement is required.

An isotonic contraction of the S. type is a muscle contraction in which the tension of the muscle does not actually change, and its length shortens and increases. Characterized by relatively weak excitability and elasticity, low increase in muscle contraction. This contraction occurs when the muscle is stretched or when the muscle shortens under the influence of gravity in a state of physiological rest. Another such contraction occurs in the muscle tissue in the phase of relative relative inhibition during the normal transition of the muscle from a state of excitation to inhibition. Conventionally, it is believed that muscle shortening has a mechanical (stretching) effect.