Sprints are great for skyrocketing your metabolism," said John Ohman, head certified personal trainer at WeightTraining.com in Tampa, Florida. Find a relatively flat, natural area. "Concrete can wreak havoc on your knees," Ohman warned. Use any toy your dog enjoys fetching. "Throw the toy, then race your dog to see who gets to it first," Wickens said, adding that if your dog wins, go ahead and follow through with your movements, reaching down and pretending to pick up the toy, to increase calorie burn and target core muscles.
John Ohman, NSCA-CPT, and WeightTraining.com