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More on cadence and running. Increasing it as little as 5% seems to decrease vertical loading rates in the achilles tendon. How can you do that? How about some music or a metronome?

"Rearfoot strike patterns had less peak AT stress (P < .001), strain (P < .001), and strain rate (P < .001) compared with the forefoot strike pattern. A reduction in peak AT stress and strain were exhibited with a +5% preferred step frequency relative to the preferred condition using a rearfoot (P < .001) and forefoot (P=.005) strike pattern. "

Lyght M, Nockerts M, Kernozek TW, Ragan R. Effects of Foot Strike and Step Frequency on Achilles Tendon Stress During Running. J Appl Biomech. 2016 Aug;32(4):365-72. doi: 10.1123/jab.2015-0183. Epub 2016 Mar 8.