Circuit 1, Exercise 1: 3 Heel Raises, 3 Toe Raises
Stand tall with your feet parallel and core engaged.
Slowly raise your heels until you're on your tiptoes, then slowly lower back down to the ground. You should feel this in your calves. Repeat three times total.
Next, lift your toes up toward the ceiling (or sky if you're outside) with your heels remaining on the floor. Repeat three times total.
This is one rep. Continue doing three heel raises and three toe raises for 30 seconds.
Tip: for the heel raise, if you feel your ankles coming apart, try pressing toward your big toes and the balls of your feet to keep your ankles steady.