"For either running or walking, slopes between 20 and 35 degrees require nearly the same amount of energy to climb the hill at the same vertical velocity,” said Rodger Kram, an associate professor in CU-Boulder’s Department of Integrative Physiology and senior author of the study."
"For either running or walking, slopes between 20 and 35 degrees require nearly the same amount of energy to climb the hill at the same vertical velocity,” said Rodger Kram, an associate professor in CU-Boulder’s Department of Integrative Physiology and senior author of the study."
https://running.pocketoutdoormedia.com/whats-the-perfect-slope-researchers-study-uphill-mountain-running_142099