In TODAY.com's Expert Tip of the Day, a trainer reveals the equipment-free hack to know you're exercising intensely enough.
Fit_bymary on MSN
Burn Belly Fat FAST! Standing HIIT Abs with Weights (No Floor Work!)
Get a killer core workout in minutes — strengthen, sculpt, and sweat right from home! #StandingAbsHIIT #HomeWorkout #FitnessGoals #WeightedAbs #HIITChallenge ...
Strengthen your abs and obliques with this 12-minute core circuit that you can do anywhere without any equipment bar a yoga mat.
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