Nashville Kettlebell, Brentwood

At first glance, the kettlebell—a cast-iron or steel weight that resembles a cannonball with a handle—may not look like much of a workout. But its versatility is quickly learned under the guidance of Nashville Kettlebell owner Dave Whitley, a StrongFirst Master instructor. Dave and his team of instructors teach people how to properly swing a kettlebell to help strengthen the core and drop pounds. Exercisers use the kettlebell to perform squats, lunges, dead lifts, and pushups, reaching muscles across their entire body and shadow.