Suitable for your own weight; Material (including the handshaking material and the packaging material of the dumbbell head); Process (handshake processing method and dumbbell head fixing)
Every time, when you start to exercise, you must warm up first, that is, move your joints, wrists, ankles, neck, shoulders, knees, hips, waist and back. Everyone should have learned it from a small physical education class. Don't repeat it. Pay attention to the previous exercise. , Is called warm-up, not stretching. Anaerobic exercise is different from aerobic exercise. If you stretch before anaerobic strength exercise, it will make muscle fibers grow in advance, and it will be easy to strain when load is added. Therefore, stretching is in Every time you train a certain dumbbell exercise, you start it after you finish it for the first time. After that, you have to stretch every time you finish it.
