Reply to Gronwald et al.: Exercise intensity does indeed matter; maximal oxygen uptake is the gold-standard indicator.
Kazuya SuwabeKyeongho ByunKazuki HyodoZachariah M ReaghJared M RobertsAkira MatsushitaKousaku SaotomeGenta OchiTakemune FukuieKenji SuzukiYoshiyuki SankaiMichael A YassaHideaki SoyaPublished in: Proceedings of the National Academy of Sciences of the United States of America (2019)