So I have been going to the gym regularly of late, and I do the elliptical each time.

Today in particular, I really exerted myself, and by the end of my 20 minute ride, my feet specifically were shuddering in a manner very similar to clonus. I tested myself by rapidly cycling for a second, and sure enough, my feet shuddered as I pushed down.

I've heard grave stories follow this symptom (like ALS or MS)...could this be clonus? Or is this just general muscle exertion that is common place.

Can clonus be triggered by a workout, in healthy people?

PLEASE HELP!!!