Desmond leads a class in New York
Jessica Desmond, an instructor at the Mile High Run Club (MHRC), leads a class in a Manhattan borough of New York November 14, 2014. A New York City fitness studio is following fast on the heels of the indoor cycling, or spin, craze by beckoning outdoor runners to come in from the cold for group treadmill classes. Equipped with 30 treadmills, lighting evocative of dusk or dawn, and group training designed to hone the skills of marathoners and newbies alike, fitness experts say MHRC - billed as the first treadmill studio - might do a bit to burnish the image of the most used, least glamorous, of gym cardio machines. Picture taken November 14, 2014. REUTERS/Brendan McDermid (UNITED STATES - Tags: HEALTH SPORT BUSINESS)