Lift: Start from a quadruped position with two light resistance bands. Run the first band from your left hand to left foot, and the second band from your right hand to right foot. Now lift your hips and knees off the ground so that your feet, hips and shoulders form a straight line. From this position raise opposite arms and legs to full extension, while bracing through the core and maintaining stability. Hold for 3 seconds, lower the arm and leg and repeat on the other side.
Repetitions: When both arms and legs have been raised this counts as one repetition.