Originally Posted by
noglider
Are you referring to the energy required to stop or restart your legs? I still don't follow. Seems to me that moving them takes more energy than to coast.
Stopping and starting your legs can cause them to stiffen up... constant motion and what is usually a higher cadence on a FG keeps those legs supple.
Even when you rest a little on a fixed gear the pedals keep turning and legs keep moving.