Now that the calendar has flipped over to December, it's often harder than ever to fit in a workout. Your schedule between Thanksgiving and Christmas may be packed with work, social events and family get-togethers, so what you need is a quick, no-equipment routine that'll raise your heart rate when you're in a pinch.

And since you don't need anything but a bit of space, 20 minutes to spare and a set of workout headphones, it's ideal when you're tight on time at home or while traveling. The session, developed by personal training duo Juice & Toya, is low-impact too, so it's easy on your joints; perfect if you have sore knees or want to keep the noise down.

I know a lot of people see "low-impact" and think that means it's an "easy" option, but that's not necessarily the case. These routine

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