"The heavier the baby the more workout you get," Seymour said.
Seymour leads Stroller-cise, a body boot camp for mom and baby.
"We do everything from crunches to sit ups, we do running, we do jogging, we do sprints, we do leg lifts, " Seymour said.
It's a workout that incorporates almost every part of the body.
"The strollers, we use them to do stretches on. We use them when we do lunges, also we use the babies. We take the babies in front of us and we do squats with the babies. We do raises with the babies," Seymour said.
Push-ups are little more rewarding when you get a kiss.
The American College of Obstetricians and Gynecologists says it's okay for a new mother to exercise six weeks after giving birth, but they also say it's important to start slow.
