To get the most out of your Core workouts, we'd recommend joining a class regularly.
Attending just once won't give you the results you're hoping for. So, Portsmouth gym members usually attend Les Mills Core classes twice a week.
If you're trying to lose weight, mix in a Core class with cardio work on the gym floor to help blitz calories and burn fat.
If you're keen to build muscle, 2-3 times a week of Core will help get you there.