3 quick & effective treadmill workouts (3-5 minute read) The cardio room. Maybe you dread it or maybe you love it, maybe sometimes it’s a little bit of both. Whether you are stuck in a routine or don’t know where to start when it comes to the treadmill, we’re here to spice it up for you. We talked with one of our personal trainers here at Commonwealth Sports Club, Andy Konz, to get some quick and effective workouts that you can add to your fitness plan to make you stronger and faster. Some benefits of the treadmill – it’s simplicity.