There are a lot of terms thrown around in the fitness world: HIIT, circuits, intervals. What are the differences, and what’s right for you?
The post Turning Up the Intensity appeared first on Under Armour.
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There are a lot of terms thrown around in the fitness world: HIIT, circuits, intervals. What are the differences, and what’s right for you?
The post Turning Up the Intensity appeared first on Under Armour.
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