The Boston Marathon is less than a month away. If you are training for the 26+ miles of winding, hilly roads through and around Boston, the odds are good that you are using some kind of wearable fitness device to track your run. You may find yourself constantly trying to top the stats of your last run, pushing harder and racing against previous times, perhaps even risking injury. How did we end up training against our fitness devices instead of training with them?
There’s no doubt that fitness data is a growing trend. Whether you are a runner or a couch potato, the fascination with such data has become an obsession. There are devices that tell us how far or fast we run, how much sleep we get, how many steps we take, and how many calories we consume and burn each day.