Instructions

• Lie flat on your back with your hands on your head
• Bend your knees up
• Sit straight up
• Half way through the motion twist at the trunk
• Reach your elbow across to the opposite knee
• Twist back to centre and lower yourself so your upper back touches the floor
• Repeat with other side
• All movement should be generated by your abs, try to minimize the use of the hip flexors

Muscles involved

• Rectus Abdominis
• Iliopsoas
• Obliques