If you only have time to train one muscle group, we would pick the calves,” say physical therapists Cate and Davis from That ...

Calf raises are one way to strengthen your calf ... Both muscles are just as important to train, she says, but remember to keep your ankles strong and avoid rolling them in or out.

Strengthening them is a must, and according to physical therapist Jimmy Pipe, who specializes in rehab and strength training for runners, there are three kinds of key calf exercises you should be ...