Popsugar Fitness Fitness Tips Best Bodyweight Exercises For Women Over 80 No-Equipment Exercise Moves For Every Part of Your Body May 24, 2017 by Dominique Michelle Astorino View On One Page Photo 63 of 84 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 63 Straight-Leg Sit-Up Begin on your back with your legs straight and arms raised toward the ceiling. Roll up to sitting, focusing on the abs rounding the back. Roll back down to the mat slowly, one vertebra at a time. Previous Next Start Slideshow Fitness TipsWorkoutsBodyweight Exercises