Dogs of all ages and sizes need exercise. Without this physical stimulation, they will not live a happy life. However, finding the time to walk or run your dog as much as you would like can be tricky.

Eyes ablaze with focus, the black-and-white dog heeds the start cue from her handler. She makes a jump, sprints up an A-frame, darts into a tunnel, shimmies through the weaves like a slalom skier, ...

When chasing after my toddler in the park, I find myself bobbing, weaving, and jumping haphazardly through the grass, up on curbs, and around trees. Little does she know, her sudden change-ups and ...