Popsugar Health & Fitness Gym Culture 20-Minute, No-Equipment Circuit Workout This 20-Minute, No-Equipment Circuit Is Clutch When the Gym Is Just Too Crowded 24 October 2018 by Colleen Travers View On One Page Photo 7 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Plank Saw Get into a low plank position, by placing your hands directly under your shoulders and then lowering so that your forearms are on the ground. On your tip toes, rock back and forth (like a hand saw), extending as far forward and backward as possible. Previous Next Start Slideshow Gym Culture20-Minute WorkoutsCardio WorkoutsStrength TrainingWorkouts