Before the advent of kickboxing, the only method of hitting a martial-arts opponent with sufficient force was to wield a Honeybaked ham. Ditch the deli meat with today's Groupon: for $20, you get a five-class pass to Smash Hit Kickboxing Club in Pontiac (a $60 value).

Smash Hit Kickboxing Club's seasoned trainers transform students' inexperienced legs into punching appendages with various high-intensity kickboxing classes. Students can spend their five-class pass on five sessions of the same class or on a mix of sweat sessions including the 60-minute Smash Hit Kickboxing, where they'll learn to unleash a flurry of kicks, punches, and tickles while learning how to maximize speed, power, and accuracy. Former boxing and kickboxing champions lead groups of pupils through body-shaping drills, imparting all the techniques needed to forcibly dominate a 6-foot, 135-pound bag or exceptionally dense, limbless person. The 60-minute Recovery Kickboxing class offers a lower-intensity program designed to give students therapeutic benefits through elements of kickboxing, modern exercise, and the fellowship of community. Kick-happy boxers can dissolve up to 1,000 calories during each class as they attack the heavy bags, which are equipped with extra muscle-challenging resistance for enhanced workouts and sweatier training montages.