Want to add more cardio and intense core to your normal Fierce routine? SAY NO MORE! The HIIT + Core class combines 25 minutes of High-Intensity Interval Training off the machine and 20 minutes of center core + obliques for the most badass, calorie burning, efficient workout ever. Bring your tennis shoes and sticky socks and be prepared to SWEAT. š« We recommend that you take about 10 Fierce Classes prior to signing-up for HIIT + Core š«
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