It's well established that a strong core can help with posture and back issues, and properly executed sit ups can contribute to a stronger, more stable core. "Regularly doing sit-ups or crunches can ...

Discover 4 shoulder press variations to sculpt powerful arms with expert tips from a trainer. Build strength and aesthetics!

Trainer Luke Jones shares a six-minute ab workout that activates deep core muscles, improves posture, and leaves you feeling the burn long after you're done.

Finally, far from focusing on a flat stomach, your deep core muscles work your pelvic floor and diaphragm. Your pelvic floor muscles are a group of muscles at the base of your pelvis, and ...