Gyms on the north side of Cincinnati

[myrare1]

I will be in Cincinnati for 2 weeks on business and I would like to find a good gym to visit, as opposed to sitting in a hotel all night. I am a member of Lifetime Fitness in Indianapolis, but my membership won't allow me to workout at the Lifetime in the Cincinnati area. I suppose I could, but I don't want to spend $20+ for a day pass. Does anyone know of any good gyms that offer an affordable week pass and possibly open early and close late, if not 24 hours?

For what it is worth, I will be staying in the I-71/I-275 area.

Thanks in advance.