Mass outdoor aerobics may be a particularly Asian trend. Everywhere from Vientiane to Saigon, public parks are used as massive outdoor gyms, where both fitness minded youths and healthy older men and women gather to work up a sweat. It makes sense: exercising outdoors is nicer than being in a stuffy gym, classes are free, and it’s a great social environment. Making less sense, however, are the crowds of spectators that gather to watch.
