I'm currently doing 5/3/1 and I don't know why but everytime on leg day, once I'm done and later in the day, my quads cramp up. Specifically, my inner quads (Vastus Medialis). I can't figure as to what might be causing this? I notice that it's more severe when I do leg extensions.
Anyone ever have this happen and how did you fix it?
And yes I hydrate properly.