Baby Runs With a Fast Crowd

“Experts say, there is a learning curve to running with a stroller. ‘Running mechanics change and targeted muscles are trained differently while pushing a stroller,” said Fabio Comana, an exercise physiologist with the American Council on Exercise. ‘It’s like learning to kick a ball with the other leg.’ Trying to do too much too soon, especially for a postpartum mother, opens a runner up to injuries. ‘It’s not just get up and go,’ Mr. Comana said. ‘It’s not an easy switch from regular running. Runners need to lower their standards of time, pace and distance.’...

http://www.nytimes.com/2009/10/01/health/nutrition/01fitness.html?ref=nutrition