The following measures are usually taken to improve the sleeping position: 1. When you sleep in a flat position, you should put soft pillows on the back of your thighs and the back of your knees, and keep your hips and knees flexed, so that the muscles of your legs, especially the muscles of your thighs, can be fully relaxed, which helps to reduce the feeling of soreness. 2. After the arterial blood supply decreases, the local electrolyte energy decreases, so the muscles in the thigh area will have a sore feeling. The actual fact is that the actual bloodstream is not only a good place to be, but also a good place to be.