The pole has always been an integral exercise apparatus, as evidenced by cave drawings depicting rudimentary pull-ups on brontosaurus-neck poles. Experience the natural evolution of pole-based fitness with today's Groupon to Sheila Kelley S Factor Chicago. Choose between the following two options:

• For $45, you get one introductory pole-dance workout and one Super Pole 1 class (an $85 value).
• For $45, you get one Super Pole 1 class and one Super Pole 2 class (a $90 value).

Harness the power of a curvaceous body to build confidence and muscle tone. Fun and inspirational teachers combine elements of ballet, yoga, and striptease (students will remain appropriately clothed throughout) to strengthen cores while boosting flexibility. As the seductress embedded deep within makes her way to the surface, students will engage rarely used muscles, sometimes resulting in day-after pangs of soreness and a confident saunter. Whether the goal is to spicy up or to tone up, S Factor will have every protective pole master arching her back as if she were a sexy, long-haired wildcat, not to be confused with the long-eared hedgehog, which is really more cute than sexy.

The warm and cozy S Factor studio is spacious enough to strut and flaunt with no danger of colliding with a low-hanging stalactite or inconveniently placed fruit cart. S Factor's female-only studios keep the focus on how to take newly discovered moves back home, to the club, or on a subway platform; it's ideal for a different kind of girls' day out. Classes are taught throughout the week at a variety of times; check out the Chicago class calendar for more info.

Call at least one day in advance to schedule your class. Participants must be at least 18 years of age.

Reviews

Read about the fitness trend in O, The Oprah Magazine, US Weekly, Self, OK! magazine, Healthy Living NYC, Fit, and Body Beautiful.

Yelpers give the Chicago location of Sheila Kelley S Factor 4.5 stars.

• This is the best workout I have ever done. It's fun and just makes me feel great. I go with a friend and we are now in our second session and have signed on for at least the next six months. – Julia H.
• If you are looking for an excellent work out and weekly get away to clear your mind and do something for yourself, S Factor is perfect. It's fun, and a safe place to let your inhibitions go without judgement [sic]. –donna m.