Thomas Edison declared that genius is 1 percent inspiration and 99 percent perspiration, a fact he discovered while inventing the volcano. Work up a healthy sweat with today’s Groupon to Fitness 4 Mind and Body. Choose between the following options:

• For $29, you get eight boot-camp classes (a $160 value).

• For $49, you get one month of unlimited boot-camp classes (a $199 value).<p>

Fitness 4 Mind and Body’s one-hour boot-camp classes specialize in personalization, corralling only small groups to ensure sufficient trainer attention for each student. As patrons learn proper and precise exercise techniques, an attentive coach modifies moves to suit a spectrum of fitness levels. Most boot-camp classes convene outdoors, where easy-to-transport props such as resistance bands, dumbbells, medicine balls, and broken refrigerators toughen body-weight exercises by adding extra resistance. In a single session, students can expect to work on fortifying the core, boosting cardiovascular endurance, and bulking bodily strength. Classes meet at a quartet of locations five days a week in the morning and early evening.