Second, the way to exercise abdominal muscles in the gym.
Generally speaking, the maximum strength growth is exercised with the weight of 1-5rm, the weight of muscle gain is 6- 12rm, and the weight of muscle endurance training is 15-20rm. Each group is exhausted. The weight of each group of boys is 8- 12RM, that is, each group does 8- 12 times! Lighter for girls 15RM.
Do some warm-up exercises before exercise and expand your chest? 10- 15 times, shoulder warm-up? 10- 15 times, lateral bending? Each side 10 times, hip rotation? Turn left and right 10 times, and lunge 8- 10 times on each leg.