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Comment & Response
November 2019

Is 4400 Steps per Day the New 10 000 Steps per Day?

Author Affiliations
  • 1Department of Kinesiology, University of Massachusetts, Amherst
  • 2Department of Mathematical Sciences, United States Military Academy, West Point, New York
JAMA Intern Med. 2019;179(11):1601. doi:10.1001/jamainternmed.2019.4704

To the Editor We read with interest the recently published Original Investigation by Lee and colleagues1 regarding the association of step volume and intensity with all-cause mortality using data from the Women’s Health Study. We commend the authors on their pursuit of this question, particularly given the recently identified2 dearth of longitudinal evidence related to steps per day and risk of mortality. The findings of Lee and colleagues provide further empirical evidence toward the question of how many steps per day are enough to improve health in adults.3,4

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