Most creatures react to danger with a “fight or flight” response, which means they either box their opponent or commandeer a nearby blimp. Hone your pugilistic instinct with today’s Groupon to Amerikick, valid at 14 locations in Pennsylvania and New Jersey. All classes must be redeemed at the same location. Choose from the following options:

• For $15, you get 15 drop-in cardio kickboxing classes (a $150 value).<p>

• For $25, you get 25 drop-in cardio kickboxing classes (a $250 value).<p>

• For $30, you get a kickboxing-class package (a $220 total value) that includes:<p>
• 15 drop-in cardio kickboxing classes (a $150 value)
• One 40-minute private lesson (a $45 value)

• One pair of boxing gloves (a $25 value)<p>

• For $35, you get a kickboxing-class package (a $320 total value) that includes:<p>
• 25 drop-in cardio kickboxing classes (a $250 value)
• One 40-minute private lesson (a $45 value)
• One pair of boxing gloves (a $25 value)<p>

To find class times, choose the your location from the list and click to link to its personal information page.

Grandmaster Dennis Tosten founded the first Amerikick in 1967 and has since taught several champion fighters, police officers, and everyday students karate and self-defense. Today, the lauded chain teaches martial-arts-inspired fitness classes, including cardio kickboxing in six states. Cardio kickboxing, like running a marathon with a secret-service agent, combines high-intensity exercise with self-defense techniques. Students torch calories and oust unwanted curves as they kick and punch their way through the course’s regimen. Amerikick’s instructors all have a certification in teaching kickboxing from the National Association of Professional Martial Artists as well as black belts in karate, a rank as difficult to attain as the snake charmer’s belt of live cobras.

Those who opt for the kickboxing-class packages receive extra face time during a 40-minute private lesson. Decorated instructors oversee each session, tweaking technique and taming wild punches with sugar cubes. A pair of personal boxing gloves rounds out the package, cushioning fingers in a pillowy fort while exercisers throw punches in solo and group lessons.