Instructions

• Hold your trunk tight and keep your back straight
• Lie flat on your back with your hands part way under your gluts
• Keep your lower back on the floor
• Extend legs fully and maintain the extension
• Raise your legs up so they become perpendicular to the floor
• Lower your legs to the start position but do not let your feet touch the floor
• All movement should be generated by your abs and hip flexors, do not swing your legs to assist

Muscles involved

• Rectus Abdominis
• Iliopsoas