Looking to strengthen your obliques and cinch your waistline? The side plank with a twist is a dynamic exercise that targets your core from multiple angles. This guide breaks down the proper ...

A certified trainer reveals the side plank variation that builds elite core strength. Perfect technique + progressive ...

Lie on your side with your forearm resting on the ground directly under your shoulder and your legs extended and stacked on top of one another. Lift your hips off the ground to form a straight line ...

For regular gym goers, athletes, and fitness enthusiasts, the basic plank exercise – or more advanced plank variations – are among the mainstays of most workout routines.

Planks are simple but also easy to mess up. Here's how to do a plank correctly, plus the benefits of planks, muscles worked, and plank variations to try.

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

Five compound core exercises that strengthen your oblique muscles without planks or lifting heavy weights, according to a personal trainer.

(CNN) — Planks are widely considered by fitness experts to be a fantastic exercise to strengthen the muscles in your core and elsewhere, no matter your age or physical fitness level.

Not sure your plank form is on point? Watch this trainer do the plank exercise correctly with step-by-step form tips, plank benefits, and plank variations.

Planks may seem daunting but are great for strengthening muscles in your core and elsewhere. Modifications can make the exercise more accessible — or more difficult.