Sumo squat to one leg
This particular exercise acts as an effective muscle-building tool. It is very good for the calves, lower back pain, glutes [6], and hips and it also helps increase flexibility.
Steps: Stand with feet slightly more than shoulder-width apart until it gives a 45-degree angle, make sure to keep the core tight. Keep the knees bent and raise your right leg so the inner thighs face forward. Do this process form 8-12 times and then switch to the other leg.