3. Jumping Jacks
If you want to have stronger legs and beautifully shaped calves, then you should practice jumping jacks. A lot of famous people, such as Michelle Obama, love this exercise and recommend it for you.
Your starting position is with your feet together. Jump and spread your legs and arms at the same time. Return to the starting position and repeat. Beginners can start with 1 minute while more advanced can increase this time.