Here are seven best ... more fun. Planks are the OG ab exercise—they look simple, but the burn is real. They engage your entire core, not to mention shoulders, glutes, and lower back.

One of the best ways to blast your core is the oh-so-simple plank. When performing a plank with good form, you’re working your midsection, shoulders, chest, lower back, quads, and glutes.

Uncover the best core gym workouts ... squat and stand up Squat down and rock back onto your low back to start again Perform 10 repetitions We all know planks are a smart move for improving ...