Muscle strain is very common in our daily life, and there are many reasons for muscle strain, which may be due to the incorrect way of exercising, not warming up sufficiently before exercising, or overloaded exercise with poor physical fitness of an individual, which leads to muscle intolerance and easy to be strained. In addition, muscle strain is also associated with osteoporosis, or the usual lack of exercise, sudden strenuous exercise, or the body lack of calcium and other triggers muscle strain easily. Therefore, in daily life exercise, try to warm up fully before exercise, and gradual exercise, do not overload exercise. Reasonable arrangement of exercise time, so you can avoid the occurrence of muscle strain, but also to achieve the purpose of fitness.