After exercise, nerve cells continue to send nerve impulses to muscles, which causes muscles to beat.
Muscle nerve self-regulation will produce muscle contraction and beating.
Fatigue can also cause slight muscle spasm, which will be relieved after fatigue is relieved.
I'm afraid that's why you "always feel very tired recently". Have a regular life. It's okay.
Involuntary tense contraction of muscle is muscle spasm, commonly known as "cramp". Muscle spasm during exercise is more common in calf gastrocnemius, followed by flexor, flexor digitorum and flexor digitorum.
(1) reason
1. Cold stimulus. If you exercise in cold water, cold air and other environments, if you are not prepared for exercise, you are prone to muscle spasm.
2. Electrolyte imbalance, especially sweating heavily during summer exercise, causes electrolyte imbalance in the body and causes muscle spasm.
3. Muscle contraction disorder or injury. For example, excessive continuous contraction relaxes muscles enough to form spasms, or during exercise, muscles suffer repeated minor injuries, causing protective tonic contraction.
(2) Performance
When muscle spasms, local sclerosis, unbearable pain, fingers and toes involuntarily flex, it is difficult to straighten.
(3) treatment
1. Stretch the flexed fingers (toes) to make them overstretch, stretch the spasmodic muscles, relieve the spasms, and then massage locally and apply hot compress.
2. Leave the stimulation of cold environment and drink some salty water.
(4) Prevention
1. Strengthen exercise, improve adaptability, and make full preparations before exercise, especially in cold environment. Massage the spasmodic muscles properly.
2. Keep warm in winter. You can't be inactive in the water for a long time in winter. If the water temperature is low in summer, swimming time should not be too long.
3. Sweat more in summer, pay attention to drink some salt and boiled water to replenish the lost electrolyte.
4. When you are tired, you should not do strenuous exercise for a long time.
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