The peroneus longus muscle (or fibularis longus) is a major mover and stabilizer of your foot and ankle. The muscle runs down ...

Large muscles like the hamstrings and glutes tend to get all the glory on leg day, but don't sleep on a very important group of muscles: the calves. The largest and most visible part of the calf is ...

For lower-body workouts from Stephanie Mansour routines — plus fitness challenges, walking podcasts, meal plans and inspiration — download the Start TODAY app! Large muscles like the hamstrings and ...