Friday

Strengthen your midsection with focused movements that activate your abs, obliques, and lower back—finish strong with 10 Supermans to boost core stability and posture.

3 Rounds:

• 15 Sit-ups See how
• 30 Russian Twists (each side) See how
• 20 Bicycle Crunches See how
• 30-sec Hollow Hold See how
• 10 Superman See how