it is from a lack of water in your body
Edited: Because lack of ATP.
Your muscles just tighen up probebley because you are doing too much work on oyur muscles. Dont worry about it
lactic acid builds up causing muscles to cramp
the muscle fibers "spasm" or involuntarily contract.
When a muscle cramp occurs, the muscle contracts forcibly and involuntarily and doesn't relax for the time the cramp lasts. The cramp can last from few seconds up to few minutes.
after a long period of exercise a muscle can cramp
A muscle cramp is likely due to a lack of
When you experience a leg or muscle cramp, it is because the muscle has constricted or tightened up. The lump you are referring to is the muscle itself that has tightened up. When your muscle relaxes, the cramp goes away.
Your muscle will detach from bone.
A painful contraction of a muscle is a cramp or charley horse.
Stop doing whatever activity triggered the cramp, Gently stretch and massage the cramping muscle, holding it in stretched position until the cramp stops, and Apply heat to tense/tight muscles, or cold to sore/tender muscles.
Possibly overuse. If this happens repeatedly, visit your doctor.
Often it is called a cramp.
If a muscle is stimulated too frequently, there are usually negative consequences. For example, the muscle might cramp, tear, or be very sore and temporarily unusable.
A spasm or cramp
The English term for "nangangalay" is cramp or muscle cramp.