Watch VoirFilms. Celebrity fitness instructor Leslie Sansone is back with this super-charged walking routine. Walk rain or shine in the comfort of your home and get in a fun and energizing workout that gets you results. This 55-minute 4-mile walking workout will get your heart pumping to torch calories and blast fat. Leslie guides you through a variety of side steps, knee lifts, arm curls and more for the ultimate full body workout. Get a leaner, more sculpted look with this low-impact workout perfect for all fitness levels!