Muscle aches often occur after exercise. Generally speaking, muscle aches caused by exercise can be divided into acute muscle aches and chronic muscle aches. Acute soreness refers to muscle pain during exercise or in a short time after exercise. Acute soreness is related to the interruption of blood flow during muscle exertion. In the case of ischemia, metabolites cannot be removed, but accumulate in muscles, thus stimulating pain receptors. Generally speaking, you will fully recover in about one minute after you stop exercising. Chronic muscle soreness often occurs between 24 and 48 hours after training. The degree of chronic muscle soreness is related to the shape of muscle contraction. Centrifugal contraction is the most likely to form chronic muscle soreness, while isotonic contraction is not significant.

The common causes of muscle soreness are lactic acid accumulation, muscle spasm and muscle injury, but the current research shows that muscle soreness is scientifically based. The action that constitutes muscle soreness will cause local damage to muscle fibrous membrane and contraction tissue, and the damaged muscle will release histamine and other irritants, which will stimulate nerve endings in the muscle that are responsible for receiving pain information, so there will be a feeling of muscle soreness. At the same time, muscle injury will also cause swelling of muscle tissue, and the resulting pressure will also be generated.

Physical therapy:

1: Massage: Improve blood circulation, accelerate the elimination of metabolites, and effectively relax muscles and bones.

2. Hot compress: through the function of hot compress, accelerate the sore parts of muscles, accelerate blood circulation and promote metabolism.

3. Transcutaneous nerve electrical stimulation or intermediate frequency interference wave: relieve pain, promote circulation and lymphatic reflux, and eliminate edema. 4. Ultrasonic or low-frequency laser: providing deep tissue hyperthermia can relieve various muscle spasms and pains, and is suitable for promoting and relieving various inflammatory reactions, especially for soft tissues.

5. Stretching: It can restore the skeletal muscle function after exercise.

Matters needing attention in daily life:

1: The intensity and duration of training should follow the principle of gradual progress.

2. Try to avoid actions that contain a large number of centrifugal contraction components at the beginning of training.

3. Muscle ache is mostly caused by muscle injury. If you have muscle aches after exercise, you'd better rest for a day or two.