1. Briefly describe the first-level movements and names of the third set of mass aerobics standards, and talk about how to master the key and difficult movements. 2. What is the connotation of health? combine Lower limb movements: step 1, right foot forward, left foot forward, right foot backward, left foot backward, 5. , 6, 7, 8, with 1, 2, 3, 4. When the upper limb moves 1 2, the arm bends forward, the forearm forms a 90-degree angle with the big arm, and the fists are clenched with both hands facing each other. 3, 4 Put your arms back to your sides. 5 At the same time as 1 and 2, the arms are bent in front of the chest, the arms are straight at the ears, and the fists are facing each other. 7 The arm is pulled back to the chest from the straight arm and flexed (same as 5 beats). 8 Swing back to the side. To prepare knowledge is to stand at attention.