Stand upright with your back to the wall.
Place a resistance band around your waist, ensuring that it is securely fastened to a point directly behind you.
Step forward until you feel resistance puling you back towards the wall.
Squeeze you glutes to ensure that your body remains upright and is not hinged.
Once stable, drive one knee up so that you are stabilizing on a single leg.
Hold for the required amount of time and then return your leg to the ground.
Repeat on the opposite side.
