- Calves. Hoofing it on heels leaves your calf muscles in a shortened position, which can mean weakened muscles when the heels come off. Remember to stretch out your calves after wearing heels in order to give them relief.
- Ankles. Walking on stick-thin stiletto heels is no small feat. To help prevent a tumble and serious injury, incorporate simple exercises that strengthen your ankles, like walking on your tiptoes and doing squats on the Bosu.
- Balance. The lift you get from wearing heels also challenges your body's sense of equilibrium, which can mean a lot of muscles are working to keep you upright. This can lead to more pressure on your lower back, so add a few yoga moves to your morning routine, trace the alphabet with one foot while standing on one leg, and focus on ab-strengthening exercises in order to help your body reposition itself correctly when you've strutting with those four-inchers.
- Achilles tendon. If you're a regular heel wearer, switching abruptly from heels to flats can cause Achilles tendonitis — when your Achilles tendon, which attaches to your calf muscle, becomes inflamed. Make sure you keep your Achilles tendon happy with a few strengthening stretches like this one: stand on a step or curb with your heels hanging off, and rise up and down on your toes.
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