It is best to practice one part at a time for large muscle groups, and no more than two parts for small muscle groups.

2. The practice time is different.

Large muscle groups exercise every 72 hours or more, and small muscle groups exercise every 48 hours.

3. The intensity of practice is different

Large muscle groups need heavy stimulation. Every time you train, the weight of each movement should reach at least 80% of your maximum weight. On the premise of ensuring safety and correct action standards, you should hit the limit weight at least once a month. Small muscle groups can ensure the quality of movement, and the weight is about 60-70%. Because small muscle groups pay more attention to sculpting and line carving.