When we make our own fitness plan, we must implement this principle and leave enough time for muscle repair. Whether it is three or four times a week, it is incorrect to exercise the same muscle group for two days, which will cause excessive fatigue of the muscle group and miss the best recovery time.
In order to fully recover the body function, sometimes we have to practice for several days, especially when our training is overloaded and our endocrine system is out of balance. So I advocate practicing three days a week.
In addition, there are the following conclusions about muscle recovery for your reference:
The recovery time of real muscle injury depends on the intensity of exercise and the time of muscle stretching.
When our muscle group has not fully recovered, you can exercise other muscle groups without any effect.
During your physical exercise cycle, you can have a proper rest and let your body get rid of fatigue completely.
To sum up, aerobic exercise can be restored within 24 hours. Strength training usually takes more than 48 hours to recover.
And the older you get, the longer it takes to recover, but people will not feel the change obviously until they are almost 40 years old.