I have also noticed that a lot of the real big body builders in NYC
gyms are Muslim or Arabic or otherwise swarthy Middle Eastern-looking.
Why, just the other day in that park at the northern end of the east
Brooklyn greenway, there was a small group of definitely Muslim men
doing kung-fu!
http://www.slate.com/id/2142772/nav/tap1/
EXCERPTS
Is there something about today's preening and narcissistic gym culture
that either nurtures terrorists or massages their self-delusions and
desires? Mosques, even radical ones, emphasize Muslims' relationships
with others-whether it be God, the ummah (Islamic world), or the
local community. The gym, on the other hand, allows individuals to
focus myopically on themselves. Perhaps it was there, among the
weightlifting and rowing machines, that these Western-based terror
cells really set their course.