It might feel harder, but your pace is slower. And the weight is moving in front of you, not ON your person, so the calorie burn is equal or actually LESS than without a stroller, due to the slower pace.
non stroller run using HRM: connect.garmin.com/activity/234606039
247 calories, avg 53 calories/km.
stroller run using HRM - pushing 30+ pound toddler plus heavy but recently tuned up state of the art jogging stroller: connect.garmin.com/activity/240177740
268 calories, avg 53 calories/km.
they are almost in the same place, geographically, and flat route.
Edited by: ZORBS13 at: 11/8/2012 (15:23)