Exercise: Criss Cross
Targets: Abdominals/obliques plus hip flexors
Pointers: Maintain imprinted spine and keep the belly button pulled in towards the mat. Draw the ribcage towards the opposite hipbone using the obliques. Shoulder blades are down and elbows wide. Keep the pelvis still as you switch sides.
To make it challenging – keep the extend leg low without lifting the lower back off the floor and try to do all your reps without resting