I tried 'polarized training' for running without a smartwatch — here’s how I paced the 80/20 rule

T2Covered by 1 source · first reported by TechRadar / Tom's Guide / PCWorld / Pocket-lint / Stuff at 04 Nov, 10:30 UTC

I paced the 80/20 polarized training rule for running without a smartwatch; here's how.

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• T2I tried 'polarized training' for running without a smartwatch — here’s how I paced the 80/20 ruleTechRadar / Tom's Guide / PCWorld / Pocket-lint / Stuff04 Nov, 10:30