As a former U.S. Marine, Erin Oprea is dedicated to fitness. Now a Nashville-based personal trainer with clients like Carrie Underwood, she uses her expertise to help those with busy lives stay fit.

A strength and conditioning specialist shares four modifications to make doing Bulgarian split squats easier.

a) Plant your left foot on a bench and your right foot on the floor, hip-width apart. Hold a 5kg weight in both hands at chest height. Squat, keeping one foot on the bench and holding the weights in ...

Along with burpees, push-ups, and deadlifts, Bulgarian split squats are among the exercises that, honestly, lots of gym-goers hate. A big reason for that is the howl-inducing burn they deliver to the ...

There are certain exercises that, when showcased on the 'gram, look totally doable, but in reality, are extremely difficult to execute—even for the super fit among us. Stokes' solution? A move she ...

The wall squat with leg extension focuses on your lower body, targeting your quads and hamstrings. The "extension" part of the exercise puts emphasis on your quads for that added "burn." This exercise ...

For someone dealing with unresolved or lingering knee pain, a leg day workout packed with high-impact moves, squats, and lunges can be, well, a little scary. That's because, according to Dr. Leada ...

If you want a Britney body, you'd better work! If you want a body like pop music icon Britney Spears, you better work! Fans of the 36-year-old superstar on Instagram have probably seen -- and been ...

Alone, each of these moves works a set group of muscles, but when strung together in one-minute intervals and broken into sets, they become a whole-body workout. Grab a mat and get ready to feel ...