Exercise is vital to a healthy life, but sometimes the colder weather isn’t exactly inviting—and that’s exactly why you should join a local indoor group fitness class.

“Group exercise breeds motivation, excitement, and adherence to the program because people feel like they are part of something special,” says John Graham of St Luke’s Fitness & Sports Performance Centers.

Fortunately, the Lehigh Valley has plenty of them to offer:

METCON CLASSES AT ST. LUKE’S

This metabolic conditioning program uses the MYZONE app to award points for working in the optimum heart rate range, says Graham. The class “is a combination of strength, core, and cardiovascular metabolic movements from your neck to your knees (jumping jacks, burpees, mountain climbers).”

St. Luke’s offers some of the best fitness classes in the Valley, including Aerobic Fusion, Body Sculpting, Cardio Kickbox, Lebarre, Max Fusion, Pilates, Power Yoga, Boot Camp, and Zumba, to name a few. For more information, check out getfit.sluhn.org.

FORCE GYMNASTICS ADULT CLASSES

Thought gymnastics was just for kids? Nope! Give your body an exciting change of pace with classes open to those 18 and up, with or without prior gymnastics experience. For more information, visit forcegymnastics.com/gymnastics-classes.

RODALE AQUATIC CENTER CLASSES

It’s never too cold to get in the water! Adult aquatic fitness offerings include swimming, Lap and Learn, Aqua Pilates, Arthritis Shallow Water, Deep Water Running, Moms in Motion, and more. For information, visit cedarcrest.edu/rac.

BARRE3

A mix of yoga, Pilates, and energetic (and constant) motion set to an upbeat soundtrack, barre3—with studios in Bethlehem and Allentown—gets your heart moving and wakes your legs up with the smallest isometric movements. For more information, visit barre3.com.