Straight Leg Raises
How to do it: Straight leg raise is done with your legs straightened while lying on your back, stretch out and place your arms by your side, press down on the floor, and relax. [3] Start alternately raising and then lowering your legs, the height is small. This exercise for the knee joint only seems simple, but with controlled work, the effect is felt.
What it does: Strengthen the knees and tendons. The load is placed on the extensors, hip flexors, which align and stabilizes the joints. When lifting, the lower back also works, which is no less beneficial for the lower body.