A strong core has many benefits, most notably that it can double as a table for sledgehammering a large ice block into a refined, more usable swan ice sculpture. Reap the benefits of a reinforced core with today's Groupon: for $40, you get three group classes at Grace Anatomy Pilates Studio in Studio City (a $90 value).

Working out on Grace Anatomy's reformers—the roller-and-spring contraptions that work core muscles in a variety of exercises—provides an intense, core-strengthening regimen on cutting-edge Stott Pilates equipment. Grace limits class sizes to six participants, ensuring that each participant receives individual attention from the studio's experienced instructors. Classes, offered for four skill levels, are plentiful, with 48 offerings per week on Grace's schedule, catering to the busy lives of working parents, harried professionals, and road-weary carnival barkers alike.

In addition to providing core-fortifying workouts, Grace's facility and equipment are kept as immaculate as Salvador Dalí's moustache. Private showers and a free towel service help smooth the transition to the slack-cored world. The accommodations, paired with Grace's relaxed, welcoming approach to Pilates and spectacular results, have won it rave testimonials from customers, including celebrities such as Ray Romano, as well as the voice of Ray Romano, Kermit the Frog.

Valid for new clients only. Socks required.

Reviews

While Grace Anatomy Pilates Studio has yet to receive many online reviews, eight Yelpers give it a perfect five-star rating, as do three Citysearchers:

• Since I've been working with Grace, I have much more power and strength. She is truly the best, you don't even realize you are exercising. – Bella C., Yelp
• Grace Anatomy is the studio you should be at if you want to change your body for the better. – Jessica G., Yelp
• My whole body feels better and looks better and it has only been a short time. – majorpash, Citysearch