Agreed - even something small would be appreciated. Maybe not as many treadmills as a typical gym would have as most people are already getting plenty of cardio running around the airport, but even something like a standard US hotel gym of several pieces of cardio equipment, selection of free weights up to 30-50 lbs, an all-in-one weight machine, yoga/stretching equipment, etc. would be nice.
Definitely only in lounges with a good number of showers though, maybe with suggestions posted in the gym area to shower afterwards
