肌腱具有收缩功能吗
Nov 23, 2022
Source: Cainiu Health
Dr. Lin Yunfei
Introduction
The muscle belly is composed of muscle fibers, appears red in color, is soft in texture, and has contractile ability and good elasticity. Tendons are part of skeletal muscles, made of dense connective tissue, appear white, are relatively hard, lack contractile ability, but possess strong toughness. Therefore, it is the muscle belly that has contractile function, while tendons do not. Overuse or age-related degeneration of tendons may lead to acute or chronic injuries.
Generally speaking, tendons are part of skeletal muscles but do not possess the ability to contract. A detailed explanation is as follows:
Skeletal muscles consist of two parts: the muscle belly and the tendon. Tendons are white fibrous tissues that attach at both ends of the muscle. Under normal circumstances, the muscle belly is composed of muscle fibers, appearing red, soft, capable of contraction, and highly elastic. Tendons, as components of skeletal muscles, are made of dense connective tissue, appearing white, firm, and lacking contractile ability, yet they are strong and tough. Therefore, it is the muscle belly that has contractile function, while tendons do not. Overuse or age-related degeneration of tendons may lead to varying degrees of acute or chronic injuries. Hence, one should avoid intense physical activities in daily life to prevent serious tendon damage.
Engaging in appropriate physical exercises such as jogging or tai chi can promote overall health without overstraining the tendons.
