https://well.blogs.nytimes.com/2015/02/19/walk-hard-walk-easy-repeat/?_r=0
“exercise walking” – Japanese study in the “Journal of Applied Physiology”
Article in NY Times
Original article: https://www.ncbi.nlm.nih.gov/pubmed/25539937
https://well.blogs.nytimes.com/2015/02/19/walk-hard-walk-easy-repeat/?_r=0