Meet the expert: Tina Tang, CPT, is a NASM-certified personal trainer, strength coach, and founder of Iron Strong Fitness. She is the expert behind the Ultimate Pull-Up Plan, a six-week training ...

Over 40? If you can hold a plank this long with perfect form, your core strength is top-tier. See where you stand.

Start on your hands and knees with your wrists directly under shoulders and your elbows pointing behind you. Step your feet ...

Mitlo tells us this exercise is a great standing exercise that will challenge your core stability. With the dumbbell held ...

With that in mind, Clayton created this quick core workout, which focuses on essential ab exercises for beginners. How to use ...