2. Straight Arm or Forearm Plank (I rested my right leg with the boot cast on top of my other leg): This simple core exercise builds the abdominals and back muscles.
3. Leg Raises: Leg raises are an effective move to target your abs and build your core strength. Unlike crunches, leg raises target your lower stomach muscles.
4. Russian Twists w/ Medicine Ball: Not only do Russian Twists target the rectus abdominis.
5. Scissors: Scissors is an abdominal exercise that strengthens the transverse abdominals.
Mix and Match these exercises to get your heart rate going! This is a great way to work out still when you have a leg or ankle injury. And then, after your workout, rest and drink tons of water!