(Don Stacom/The Hartford Courant) More than a half dozen other gyms operate in the city ranging from Healthtrax and Bell City CrossFit to outlets of the national Powerhouse Gym and Planet Fitness ...

National Fitness Partners, a private equity held Planet Fitness franchisee based in Camp Hill, Pennsylvania, recently acquired 13 Planet Fitness Centers in Massachusetts and Connecticut.

The Planet Fitness $10-a-month membership plan is a powerful marketing tool and a central part of its strategy. But the largest gym chain in the United States is hiking that monthly fee for the ...