Teacher licensure has little impact on teaching quality because it sets too low a bar for entry into teaching. (educationnext.org)
While this can work well for high bar squats, the mechanics are not the same for low bar squats. (getthisstrength.com)
At the top of the motion, squeeze your shoulder blades together for full contraction, then slowly lower the bar back to the start position. (bodybuilding-wizard.com)