I've noticed this phenomenon while pushing off with my left leg. Typically, I keep my right leg clipped in and then push myself off with my left leg. Sometimes during this pushing off process my toes will cramp up or lock on the leg that I have pushed off on. Sometimes I can shake it out by just putting pressure on the ball of my foot and trying to stretch it out but sometimes it just feels kinda stuck. Does anyone else have this problem or does anyone know what causes this and how I can prevent them? Stretches? Strengthening? TIA!