As you bite into a crisp apple, your jaw muscle contracts, allowing you to grind the fruit between your teeth. When you climb a flight of stairs, your gluteus maximus (or "glutes") push your body ...

I’m a personal trainer, and this is the only kettlebell workout you need to master the 7-7-7 method.

Sit-ups can be a great way to strengthen your abdominal muscles that sit around your stomach. But they can quickly get repetitive and its easy to accidentally lose your form, so when boredom strikes, ...

Core strength is more than just achieving sculpted abs—it’s the foundation of movement, balance, and injury prevention. A weak core can lead to poor posture, chronic pain, and decreased athletic ...

Strength training is important for everyone. We all need this type of movement to build and maintain muscle and to stay healthy and mobile as we age. Stephanie Mansour, a personal trainer, weight-loss ...

Building and maintaining muscle mass is important for everyone, regardless of age — and one of the strongest predictors of long-term health.

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Body-weight exercises are ...

Editor’s note: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical ...

From the diaphragm to the pelvic floor, scientists say improving your core strength can protect your spine and help you move with ease into older age. Exercises like the plank train the body’s full ...

The advice is common — and vague. Here’s how to do it properly. By Hilary Achauer When I began weight lifting in my late 30s, my coaches often gave me a somewhat baffling cue. “Engage your core,” they ...

When you think about strengthening your core, the first thing that probably comes to mind is your six-pack, or rectus abdonimis muscles. We get it—no one is arguing that six-packs look great—but there ...