Start lying flat, bend knees at 90° above you. Crunch, reaching arms past knees towards ankles. Lower while extending arms overhead and straightening legs at an angle.
"Lie flat, hands behind head. Lift into a crunch, touch heels to ground while maintaining a 90-degree leg position. Return to tabletop position. Add ankle weights for extra challenge."
"Lie on back, arms overhead, knees bent. Crunch up using arms as lever, lifting head and shoulder blades. Pulse at the top, then lower down and arms overhead."
"Lie flat, legs straight, back pressed. Lift shoulders, bring right knee to chest, left elbow to meet it. Switch sides, right elbow to left knee. Keep straight leg hovering."
"Enter plank position, press toes, squeeze glutes. Lift right foot few inches, hold 5-10 seconds. Lower, repeat with left foot. Focus on core stability."
"Assume forearm plank with elbows below shoulders, arms parallel. Walk right foot out, then left. March feet in and out, focus on core stability, avoid hip movement."
"Begin in plank, arms straight, wrists under shoulders. Keep body aligned. Alternate bringing knees into chest. For challenge, cross right knee to left elbow, repeat other side."
Start in a starfish shape, limbs spread. Engage core to pull into a tight ball, hugging knees. Lower back down and repeat. Improve flexibility and core strength.
Sit, knees bent, chest lifted. Lower back engaging core, spine straight. Hold weight or hands together. Twist sides with control, heels grounded or lifted slightly. Enhance core strength and flexibility.
Place elbows on Swiss ball, toes on ground for plank. Roll ball forward and back, extending plank and bringing it in. Keep hips steady, brace core. Enhance stability and core strength.