Forget weights and sit-ups — this 10-minute standing ab workout will blast your core

To mix things up, I rolled my best yoga mat away and tried this 10-minute standing ab workout, designed by YouTube trainers Juice and Toya. The result? I was surprised by how much my abs ached after ...
Well+Good

This Equipment-Free HIIT Workout Will Have Your Core and Glutes Feeling the Burn In Under 17 Minutes

Though it’s brief, it’s a solid sweat sesh that will fire up your booty and core, and leave you dripping in sweat. Atkins warms us up with some mobility drills, then heads into the strength work.
PopSugar

This 10-Minute HIIT Core Workout Will Have Both Your Abs and Lungs Burning

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 ...