2. Lifting iron is the basis of strength training. Not only strength training, muscle training, novice training, shaping training and fat reduction training are all inseparable from lifting iron.
3. Skeletal muscle of human body has obvious phenomenon of "use in and waste out". If a certain muscle, or a certain muscle group lacks application, skeletal muscle will gradually atrophy and degenerate.
4. The degradation of skeletal muscle is not only manifested as muscle atrophy and strength decline, but also as the reduction of glucose absorption and utilization efficiency, which leads to insulin resistance, and ultimately leads to the increase of blood sugar or aggravation of blood sugar control difficulty.
5. Lifting iron is the most effective and flexible resistance training. Through a certain pressure load to promote muscle contraction, increase muscle strength and volume, improve muscle sensitivity to insulin.