The knee bend, also known as a squat, is a very effective leg muscle building exercise. Thigh muscles and lower leg muscles work during a knee bend. The 300 Squats Programme gives you an opportunity to develop your leg muscles by doing 300 squats in a row. Our verified technique of tests and a training series allows you to start exercising at a level that is matched to your abilities - this way you can progress at a rate appropriate for your fitness level.