If exercising in a room full of taut, Spandex-clad bodies feels more intimidating than inspiring, you might be more comfortable at Welcyon, a gym for people over 50. At the locally based chain, the atmosphere is relaxed, the music is easy on the ears and neither clothing nor abs need be tight. But the equipment is the latest technology. Workouts, customized to members’ health history and physical condition, are recorded on smart cards that plug into the gym’s air-powered machines, automatically adding resistance as strength increases. 4420 Valley View Road, Edina; 952-929-0279. 10615 France Av. S., Bloomington; 952-888-4408; welcyon.com