1. Core Work... Slow-Motion Hamstring Curl-Jacks!

    Core Work... Slow-Motion Hamstring Curl-Jacks!

    17
  2. Core Work... Slow-Motion Opposite Touches!

    Core Work... Slow-Motion Opposite Touches!

    17
  3. Core Work... Russian Twist Cross-Knees!

    Core Work... Russian Twist Cross-Knees!

    19