The Checkup: The 12-Minute Butt Workout You Have to Try

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• My Instagram followers already know this, but here’s a confession for everyone else: I just came back from a surprise trip to South Beach. So while you may accuse me of having too much Miami on the brain and sun on the skin, trust me: This three-move glute workout from a trainer at South Beach’s Equinox gym is the real deal. Best part? You can do it in 12 minutes flat. [Q by Equinox]

• Ladies, chances are your sports bra sucks. Here’s what science says the ideal sports bra should look and act like. [Prevention]

• Hosting a holiday party this month? These six easy appetizers clock in at under 100 calories. Win! [Fitness Magazine]

• Here’s something we could all use: a study which looked at how to reduce sitting time at work. [Runner’s World]

• One for the bookmark bar: the year’s best gluten-free recipes in one easy-to-use guide. [POPSUGAR Fitness]