1. Plank
Planks work your entire body, especially your rectus abdominis and transverse abdominis. Start by placing your forearms on the floor and stepping your feet back. Hold the position while keeping your abs tight. Do 3 sets of 15-60 seconds each.
2. Russian Twist
This exercise works the intercostal muscles. Sit on the floor with your knees bent and your hands clasped in front of you.
Lean back at a 45-degree angle. Lengthen your spine and tighten your abs. Rotate your torso from side to side, keeping your legs and hips stable.
Do 3 sets of 10-15 repetitions on each side.
3. Leg lift
Leg raises target your lower abs. Lie on your back with your arms relaxed at your sides. Tighten your core and press your back into the ground as you lift your legs to a 90-degree angle. Lower them back down without touching the ground. Do 3 sets of 10-15 reps.
4. Side plank
Lie on your side with your knees and feet stacked. Prop yourself up on your forearms. Brace your abs as you lift your hips off the floor, forming a straight line from head to heels. Do 3 sets of 15 reps; 60 seconds per side.
