Do not squat, lunge, bend your legs, bend your legs, lift your heels, and especially increase your weight. These can't be thin thighs. The aerobic exercise equipment you don't want to do is a mountain climber and a treadmill. Although it is often said in propaganda that these devices can thin thighs, they actually only exercise thigh muscles and make thighs thicker. Strength exercises will make muscle fibers bigger. You can do it after the leg fat is reduced, and then you can feel the sculptural feeling of the leg muscles. If the legs are fat, aerobic exercise is the main method. The goal of aerobic exercise is to burn fat, but it will not increase the large muscle groups on the thighs. In order to achieve this goal, don't let the thigh muscles exercise excessively. If you practice on aerobic equipment, the resistance setting should be low (such as elliptical machine or exercise bike) and the slope should be small (treadmill). But you have to set a relatively high intensity (how hard you practice) to achieve the maximum effect. You can use heart rate monitoring equipment. If you exercise outdoors, don't practice in the mountains.