Although this is more of a sports training facility (ie hockey, football, soccer, baseball, track etc) they also feature a very nice fitness area and it comes at a reasonable price. I have personally had a membership at this facility previously and quite enjoyed it.

Calgary Locations:

NSD South
7475 Flint Road S.E.
Calgary, Alberta
T2H 1G3
Tel: 403-201-8788

 NSD North
2825 24th Ave. N.W.
Calgary, Alberta
T2N 4L6
Tel: 403-284-2599

D9 at Currie Barracks (fields only no workout area)
2732 Falaise Avenue S.W.
Calgary, Alberta T3E 7J2