Elevation Training Mask Do High Altitude Training Masks Work?

Certain face masks claim to improve endurance performance by restricting how much air you can breathe in. But are they legit? Here’s what the experts and research say.

ELEVATION TRAINING MASK THE PINNACLE OF BREATHING PERFORMANCE

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Altitude Masks for Running: What are the Benefits? - The WOD Life

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Can elevation training masks improve your endurance?

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