New York Sports Clubs, part of Town Sports International's network of fitness loci, opens up a number of equipment-stocked facilities across New York to exercisers. Strength-training gear, such as circuit machines, free weights, and medicine balls, molds muscles into chiseled depictions of physical might. Sessions on cardio machines, ranging from treadmills and ellipticals to upright and recumbent stationary bicycles, inspire burnt calories to pack up and move to cooler climates. Each club offers a schedule of group classes that draws from more than 100 fitness styles, including Pilates, yoga, and boxing, ensuring that no member has to jazzercise without a spotter. Each location rewards exercisers for sweating in its vicinity with special features such as babysitting, saunas, and steam rooms.