'Derek shows that muscle ups are possible to do on an Iron Gym Extreme. Not a full muscle up yet but you can see how they can be done.' 

Tags: fitness , Workout , abs , strength , training , powerlifting , muscle ups , Iron Gym Extreme

SEE ALSO: abnehmen , zumba fitness , boxing training , dancefitness , educa , sm , μαιρησυνατσακηbox , Physique , free workout , v squat