Like a good horror movie, a good exercise regimen shocks the body out of its lethargy, which is why so many personal trainers chase their clients on treadmills while brandishing anacondas. Get in less terrified shape with today’s Groupon to Core Fitness in Ludlow. Choose from the following options:

• For $20, you get a punch card good for 5 Zumba classes (a $50 value).
• For $35, you get a punch card good for 10 Zumba classes (an $80 value).
• For $49, you get a three-month gym membership (a $159 value).

In addition to an ample selection of workout equipment, Core Fitness houses an experienced team of Zumba instructors, who propel clients of all levels through fitness-based dance classes inspired by the Latin rhythms. Participants undulate through a fun set of varying dance routines designed to help them lose weight, tone musculature, and hone rose-clenching abilities. Otherwise, opt for the three-month membership, which welcomes fledgling shape shifters to a bevy of cardio and weight-training gear as well as inspiring group classes such as cardio kickboxing and CrossFit. Athletes can train for a marathon on the treadmills, build leg strength on ellipticals, or scale the stair climbers to the gym’s secret attic stash of chocolate dumbbells.