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- 19:58, 7 September 2020 (diff | hist) . . (+5,001) . . N Running Time As A Measure Of Heart Health (Created page with "The intervals ought to be challenging, and the Tempo Day run must be done at a tough but comfy tempo. It burns as much as 340 energy an hour (at a 3.5 to 4 mph tempo). While y...") (current)
