Hello, it has a certain effect. If you want to stovepipe, you can try the following exercises: 1. Lie flat on the bed with your legs at 90 degrees to your body. Keep your legs apart (open as far as possible) and cross again. Do it 50 times before going to bed and getting up, and you can exercise your inner thigh muscles. 2. Lie in bed and ride a bike in the air. Repeat 15. Watch the pedal. Trim the leg lines. Stand at attention with your hands at your sides. Bend your knees and touch your toes (don't push too hard at this time). The trick is to bend your knees without bending your back muscles, and then gently return to your original position. This action takes about 3 seconds. At first, we should aim at 10 second for three times, and then accelerate after getting used to it. If you want to stovepipe quickly.