• Grip bar, hang with arms extended, body straight.
    Engage core, lift knees towards chest.
    Hold that position for the specified amount of time.
  • Perform a reverse crunch and then kick your legs up toward the ceiling.
    With your hips and knees extended, lower yourself slowly back to the start position.
  • Lie on your back, knees bent, hands behind head.
    Crunch up, flexing the spine and your abs.
  • Lay on your back with knees bent and your feet together.
    Keep your arms extended overhead. Swing your arms to generate some momentum and sit up.