Before Zumba or Pilates, those looking to tighten their core were forced to exercise at six times normal gravity inside high-speed centrifuges, hoping the excessive speed would simply fling the fat off. Strengthen your body in elegant, non-centripetal fashion with today's Groupon: for $15, you get a punch card for five Pilates or Zumba classes (a $30 value) plus a Zumba bracelet ($2 value) from OKC Zumba at To The Pointe… Dance Academy. You must be at least 13 years of age to participate. Classes take place Mondays and Wednesdays. OKC Zumba recommends that you arrive five to ten minutes early to ensure your spot.

OKC Zumba's registered dietitian and certified hardbody Kerri Whitley has firmed and shaped corpuses through gleeful fitness sessions for 18 years. In her Zumba classes, she employs a fun fusion of Latin rhythms, easy-to-follow dance-aerobics moves, and spellbinding salsa to hypnotize bodies into a trance state of startling vigor and fortitude. The alternating high- and low-intensity movements render it a delightful workout for both beginner and advanced exercisers as it moves from warm-ups to routines like merengue, mambo, reggaeton, and cha-cha over the course of a 50-minute class that stretches endurance, keeps the heart pumping, and woos passing pan flute-playing satyrs. To commemorate your dance-a-thon, you'll get to gird your revered wrist in a fancy Zumba bracelet.

You can also put your punch card toward Kerri's 30-minute courses in Pilates, the now-classic contortionism discipline that uses controlled movements, breathing, and mat exercises to forge fitness of the whole body and mind. After your Groupon's quintet of classes, you'll leave with improved posture, a stronger core, tighter muscle tone, reduced joint pain, and a head fit for professional rubbernecking.