In the early stages of evolution, fitness routines consisted of hurling crude spears at jungle cats and diving behind boulders to avoid personal mauling. Break the monotony and despair of traditional exercise with today’s Groupon: for $25, you get a fitness pass for five classes at CrossFit Dunamis (a $75 value).

Structured around high-intensity workouts and constantly varied movements, CrossFit is a coach-led conditioning program designed to improve 10 recognized fitness domains, including strength, flexibility, and cardio-respiratory endurance. This comprehensive approach to fitness employs functional movements, such as squats and pull-ups, as opposed to the stationary bikes and highly ineffective grunting machines.

Within the 2,200-square-foot body-buffing complex, motivating coaches lead students through an ever-changing, custom-made exercise program built around power jumps, rope climbs, medicine-ball throws, and cardio-boosting activities that rarely repeat within the same year. Without the clutter of bulky machinery, CrossFit blocks off open spaces for exercises requiring larger ranges of motion, such as full-speed running and synchronized sweat-angel routines. Experienced fitness experts prepare all programs, which rarely last longer than 45 minutes.