Trainers say circuit training is the most efficient type of workout you can do (plus: 3 example workouts)

It combines strength and cardio into one total body sweat session.
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This Quick 5-Minute Ab Workout Will Still Seriously Challenge Your Obliques

Time is a precious commodity, and sometimes, finding time to squeeze in physical activity, like a 30-minute HIIT workout, or a group fitness class can be challenging. However, coach Raneir Pollard has ...
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Get Energized With This 30-Minute Caribbean HIIT Fusion Class

This fun workout combines high intensity interval training (HIIT) with energizing movements inspired by Caribbean dance. Led by Selena Watkins, founder of Socanomics, and assisted by Tiff Marie on the ...
Yahoo

HIIT Workouts Are Overrated. Try These 3 Alternatives Instead.

If you've bought into the hype and you don't need to do anything other than High-Intensity Interval Training (HIIIT) to stay healthy and fit, there’s a good chance you're missing out on your goals and ...