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Because the muscle cells that are in the muscles break away from the rest of the muscle cells when exercising and are brought back together when protein is taken in. This causes muscle mass to increase
It is best if you give a muscle group at least a day or two of rest to give time to GAIN the muscle. If you lift every day you aren't going to gain good muscle mass.
yes. you can get tired or pull a muscle. u need to rest
Avoid situations where you need to use your arms. Rest
For muscle size: high weight, low reps, rest low reps, rest... Use as much weight as possible, so much that you can only lift it a couple times. For muscle toning, endurance and general health, high reps, shoot for 20 or more before the muscle is fatigued.
Muscle tone refers to residual muscle tension or in another words levels of contraction of the muscle while at rest. Muscle tone is what makes the muscles feel and look like while at rest.
It will come slowly as you build muscle on the rest of your body. It will come slowly as you build muscle on the rest of your body.
True.
You can not reverse muscle tiredness, you just have to rest them.
It depends on the person. e.g. their weight, muscle mass, strength, age and height.
A muscle that has been working too long and needs to rest.
2 ATP from glycolysis, as the rest of the process does not go on!