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Shorts length is sport-specific. The optimal inseam varies from 3 to 9 inches depending on training type. Here is the comparative guide.

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The optimal long-run distance has been debated in running research for decades. Here is what the data actually shows, and how to dial yours.

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Up to 80% of women wear the wrong sports bra size. Sister sizing is the framework that fixes it. Here is how it works.

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RPE (Rate of Perceived Exertion) is the most-used internal-load tool in serious strength research. Here is how it works and how to use it.

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Functional fitness combines lifting, conditioning, and full-body movement. Apparel needs to keep up. Why Catar Cottega works for HIIT and Hyrox training.

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