A* 10 rest, B* 10 rest, C* 10 rest) *3—— It means that the three movements A, B and C are done in three groups, and each group does 10 times. It is more appropriate to rest 1 minute between each group.

For example, an action that can be done five times is 5RM. For muscle training, 8 to 12R is more suitable for beginners. In other words, you are exhausted after 8 to 12 times, and you need to rest for about 1 minute to recover your strength.

For example, do 4 groups, each group does 8 to 12 times, and each group has a rest 1 minute. The reason why you need to rest 1 min is because you have no strength after 8 to 12 times.