There are many benefits of well-developed leg muscles: First, it can enhance the strength of the whole body, the leg muscles are the largest muscle strength of the whole body, but also the largest potential, muscle strength developed can increase the vitality of the lower limbs, for joint stability and the protection of bony structures have a very important role. Second, can improve the body’s coordination, because the leg muscles account for about 60% of the whole body, the lower limb muscle strength developed that the person’s physical quality is better, and resistance is also stronger. Third, to improve the body’s basal metabolic rate, largely proportional to the body’s muscles, leg muscles developed, the basal metabolic rate will increase, physical quality will also have a very obvious improvement, explosive power, combat power, endurance will have a significant increase. Whether male or female, leg muscles are able to improve combat power, whether it is fitness or work, lower limb strength developed is very beneficial to us.