As a general guideline, Doug Sklar, a certified personal trainer and founder of PhilanthroFIT in New York City, recommends ...

Generally speaking, time under tension is a great thing for growing muscles. However, anything beyond two minutes for a plank ...

Forget long plank holds. Learn why proper form and short bursts deliver better core strength and save time during your ...

The latter two exercises can put strain on your spine and hip flexors, while planks do not. But there are other reasons for ...

That’s because your form can start to suffer the longer you’re in it and contribute to low back pain, not to mention planks aren’t a functional exercise in that you don’t do them in ...

Check out these trainer-approved tips for how to do a burpee properly and how often, plus the benefits of burpees, history of ...

The press-up is the Swiss Army Knife of training. It is a multi-purpose, highly efficient exercise that works the upper body ...

This eight-move abs workout from Pilates instructor Lilly Sabri targets the deep core muscles as well as the abs and obliques, all in just eight minutes. You don’t even need any equipment to do the ...

The triceps are the first to give out during push-ups, and mine were trembling toward the end of the 70 reps each day. My ...

Crunches are great for strengthening and toning your core muscles, specifically the rectus abdominis (AKA your six-pack) and ...