Dumbbells can be electroplated, and it is not easy to get dirty hands. As for the weight of dumbbells, in principle, it is recommended to buy the heavier the better.

According to China people's regular physique and exercise intensity, and considering the stage of increasing dumbbell fitness intensity in the future, the following dumbbell combinations are formulated:

Height 1.60m, weight 60kg-25kg；;

Height 1.70m combination of 70kg and 30kg;

Height 1.80m, weight 80kg-35kg；;

Height 1.90m, weight 95kg-45kg combination.

In bodybuilding theory, RM is used to indicate the maximum number of repetitions that a load can do continuously. For example, an exerciser can only lift a heavy object five times in a row, so the heavy object is 5RM. If the purpose of dumbbell fitness is to increase muscles, do dumbbell movements from 8RM to 12RM every day, with about 3 to 8 groups for each movement and 8 to12 for each group; If the purpose of dumbbell fitness is to keep fit, do the related dumbbell movements 15RM to 20RM every day, with 5-6 groups for each movement and 15 to 20 for each group.