Challenge your core and cardio skills with this 10-minute HIIT workout led by fitness trainer Natalie White. She's joined by class members Luisa Fonseca and Madisyn Maniff for this high-energy cardio ...

Depending on your fitness level, you can use this to get started or give yourself an easy day. This workout gets the heart pumping and works the entire core system (from hips to shoulders), which is ...