Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

Leg twitching is a sudden contraction or release of a muscle. Leg twitching when trying to relax can sometimes be a sign of a health condition, such as restless leg syndrome. When signal misfires ...

That sudden, excruciating tightening in your calf or foot might be more than just an annoying interruption to your day or sleep. While occasional muscle cramps affect nearly everyone at some point, ...

What is the cause of flexor and extensor spasms seen in patients with paraplegia? What is the prognosis in such patients? How do we manage such a problem? In a spinal cord injury resulting in ...

Picture this: You’re lying in bed, *just* about to fall asleep, when your leg starts to cramp. The contractions, the twisting, the spasms, ugh! Naturally, you start to wonder, what causes leg cramps ...

Leg cramps are typically harmless. Although they go away on their own, several at-home remedies may help relieve the symptoms. In this article, we explain what leg cramps are and what can cause them.

For years, the body’s largest lean tissue—skeletal muscle—has been underestimated in its role in managing metabolic health. Despite its size, it contributes surprisingly little to blood sugar and fat ...

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