In TODAY.com's Expert Tip of the Day, a trainer explains what causes lower back pain and a simple exercise that can ease ...

Why: “This is a nice way to add lower back action to your back workout,” Samuel says. By rowing in a static bent-over position, your lower back muscles will work overtime to hold your torso at a ...

There’s no easy way to put it: Lower back pain just plain sucks. Whether it’s dull and achy, sharp and shooting, or tight and stiff, discomfort on your backside is no picnic. But the good news is ...

Squats are known for building strong legs, but that doesn’t mean they work for ...

In most workout splits, one to two dedicated leg days per week is common, but it really all depends on your fitness level and ...

The low back is not typically an area that many clients ask me about — until they start experiencing pain in the area. But the truth is: The low-back should be a priority in our fitness routine to ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. It’s easy to almost ...

What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between your ...

Yoga isn’t the only way to improve your posture—exercises that stretch and strengthen your core, back, chest, and neck can ...

Muscle loss after 60 isn’t a sudden event—it’s a gradual process. The good news is that with the right movements, you can ...