Fatigue is a very important concept. Literally means exhaustion of strength, and inability to do another action is exhaustion. For example, if you take a 20 kg dumbbell and do it 10 times, but you can't do it 10 times, then 10 times out of 20 times of 10 kg is your exhaustion times. If you can't do it1times,

So why train until you are exhausted? First of all, training makes muscle fibers tear (the source of muscle soreness after training), and the torn muscle fibers will be repaired more sturdily in the recovery after training, thus achieving muscle growth. Then exhaustion can stimulate and tear muscles to the maximum extent, thus making recovery and muscle growth better.

However, in daily training, do not frequently arrange exhaustion groups. If each group rests for 65,438+0-2 minutes, our muscles will recover 90% of their strength, but doing exhaustive exercise in each group will make the muscle recovery time longer, thus affecting the overall training effect. Therefore, in normal training, the exhaustion group can be properly allocated to better stimulate muscle growth.