Starting Position: Stand with your feet together and your arms raised in front to shoulder height, with your elbows fully extended. Depress and retract your scapulae (pull your shoulders down and back) without arching your low back, and "brace" (engage your abdominal / core muscles) to stiffen your spine.
In preparation to step forward, slowly lift one foot off the floor, stabilizing your body on the stance (supporting) leg. Avoid any sideways tilting or swaying in your upper body and try not to move the stance (supporting) foot. Hold this position momentarily before stepping forward. The raised (swing) leg should initiate contact with a heel strike first, slowly transferring your body weight into the leading (forward) foot placed firmly on the floor. As you load into this leg, avoid any sideways tilting or swaying in your upper body and try not to move the stance (supporting) foot.
As you lunge forward, focus more on dropping your hips towards the floor rather than driving your hips forward. This will help control the amount of forward movement of your shinbone (forward tibial translation) over your foot. Continue lowering your body to a comfortable position or until your front thigh becomes parallel with the floor and your tibia (shinbone) is in a slight forward lean. While lunging, simultaneously, bend forward at your hips, maintaining a flat back and drive your extended arms towards the floor in front of you (hands should reach somewhere below your knees). This increases the load on your gluteal muscle group.
Firmly push off with your front leg, activating both your quads and glutes (thighs and butt muscles) to return to your upright, starting position.