“If you want to get toned and improve your muscle strength, it’s time to hoist heavier weights. Choose a weight that you can lift for 6-8 reps and make sure to do 3-4 sets of each move. Researchers have found that when you lift heavier weights at lower repetitions, you burn twice as many calories in the two hours post-workout compared to lifting a lighter weight for 15 reps.” — Tiffani Bachus, RDN, and Erin MacDonald RDN, of the nutrition and fitness blog, URockGirls.com, Phoenix, Arizona
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