This is my first winter doing squats as I (incorrectly it seems) assumed that biking alone was enough for legs. I only workout at home and do not have a squat rack. So, it's unloaded, sometimes with a dumbbell or step ups on an 18 inch stool.

With all the recent hype about "lift heavy," I am unable to do that with my legs. I have a machine for upper body along with elastics. Maybe I am too worried about "Over Doing it at The Gym," as this thread is titled. Unfounded concern?