Begin in the plank position with your forearms and toes on the floor.
Keep your torso straight and rigid and your body in a straight line from ears to toes with no sagging or bending.Your head is relaxed and you should be looking at the floor.
Hold this position for 1 minute. Drop knees to the ground at ANY TIME to modify.
Jack knife sit ups - beginner clip/modification
Jack knife sit ups - higher intensity
Thread the Needle
V-Sit with toe tap
In Good Health,