The plank is one of the most effective core (abdominal, back and stabilizing muscles) exercises out there. Master the plank and you can build core endurance and strength. If a regular plank wasn't fun ...

Stronger legs set the foundation for your independence as you move through your sixties and beyond. Every step, transition, lift, and change of direction relies on the muscles in your quads, ...

If you want legs that command attention, you have to balance strength and size. Squats and deadlifts will crush your glutes and hamstrings, helping you to pack on serious power. But if you want quads ...

Set your foot back into your plank, and repeat this movement on the other side. Keep alternating with control for 20 seconds. Alternating Leg Extension: Start on all fours with your shoulders over ...