Experiencing muscle twitches after exercising or stretching is a common response that occurs in the body, especially for individuals who participate in strenuous and endurance exercises. Medline Plus explains that muscle twitching is caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber. You can do a number of different simple remedies to help the twitching in your muscles subside.
Definition
Muscle twitches, or fasciculation, is the small involuntary movements of the muscles and muscle fibers. In order to perform extension and flexion movements, the muscles need certain nutrients and electrolytes including potassium, sodium, magnesium and calcium. These minerals play a part in sending electrical signals through the muscles and nerves that initiate and control muscle movement. An imbalance or lack of these nutrients can cause the irregular and involuntary muscular or neurological movement that occurs that causes the twitching.
Causes
Some causes linked to muscle twitches after you work out or stretch may include dehydration, some medications and diuretics, lack of oxygen or a deficiency or lack of nutrients and energy in the body. In some cases, overworking the muscles during your workout, insufficient stretching or strenuous stretching wherein you feel pain or discomfort while stretching can cause twitching. The build-up lactic acid in the muscles may also cause involuntary twitching.
Symptoms
Symptoms of twitching may include numbness, tingling or involuntary muscle spasms. The twitching usually happens in a centralized area, affecting individual muscle groups. Twitching after stretching is common in the calves, thighs, buttocks and arms.
Treatment
Properly warming up by doing light stretches and low-intensity cardio exercise before progressing to a more intense exercise level can help prevent muscle twitching. Post-exercise treatment may include gently re-stretching the affected area. Eat foods that are significant sources of potassium and calcium, such as a banana or yogurt. Avoid consuming foods that have high amounts of caffeine. Remember to rehydrate after exercising. If you sweat excessively, it is important to replenish your electrolyte levels by consuming sports drinks.
Warning
If muscle twitching continues after several days and you begin to notice a change in muscle size, weakness or a loss of feeling, consult a physician. Muscles that twitch for an extended period may be caused by damaged nerves, nervous system disorder or weak muscles. Persistent and long-term twitching can sometimes be related to diseases like spinal muscular atrophy and myopathy.
