Exercise keeps the body in peak condition, which explains the marbleized ThighMaster lying next to Michelangelo’s David. Enjoy an anatomical renaissance with today’s Groupon to The Firm in Lexington. Choose between the following options:

• For $29, you get a punch card for 10 group fitness classes (up to a $100 value).
• For $29, you get a one-month membership (up to a $150 value), which includes the following:
• 30 consecutive days of unlimited group fitness classes
• Complimentary childcare<p>

Known across the country for their body-sculpting workout DVDs, The Firm’s fitness gurus lead more than 30 weekly classes designed to deliver fast, figure-firming results. An experienced instructor helms each session, helping participants tailor the movements to suit their fitness levels, goals, and dreams of one day becoming a gazelle. Aerobic Weight Training, the studio’s signature class, challenges the entire body with intervals of heart-bolstering cardio and strength-boosting exercises. An excellent conditioning workout and calorie burner, Firm Cardio features high- and low-impact moves performed on floors, steps, and the tops of pianos, and an athletic combination of deep stretches and muscle-toning poses comprise all-levels yoga classes that build flexibility as they dissolve pent-up stress.

Students who purchase the one-month membership can attend any class and keep their metabolisms maximized by using barbells, dumbbells, and cardio machines in the studio’s weight gym. Available by reservation, complimentary childcare is available to members who normally travel with their own pintsize entourage, allowing them to sweat in peace knowing their kids are safely housed in a supervised space filled with games, naps, and puppets made from recycled legwarmers.

Though The Firm sometimes offers online discounts, today’s Groupon is still the best deal available.