A 400-Calorie Treadmill Workout That Targets Your Butt
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A 400-Calorie Treadmill Workout That Targets Your Butt



Target your tush! Get a toned booty while burning tons of calories and boosting endurance. We call that a triple threat!

If you want to burn 100 calories in 10 minutes, and tone your tush and legs at the same time, go for a run. For even greater lower-body-sculpting power, you'll

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