Dose-Response Relationships between Objectively Measured Daily Steps and Mortality among Frail and Nonfrail Older Adults.

"The authors declare that they have no competing interests. The authors declare that the results of this study are presented clearly, honestly, and without fabrication, falsification, or inappropriate data manipulation. The results of the present study do not constitute endorsement by the American College of Sports Medicine."

"The Kyoto–Kameoka study was conducted with JSPS KAKENHI and was supported by a research grant provided to Misaka Kimura (24240091), Yosuke Yamada (15H05363), and Daiki Watanabe (21K17699); a grant and administrative support by the Kyoto Prefecture Community-based Integrated older adults Care Systems Promotion Organization since 2011; Kameoka City under the program of the Long-term Care Insurance and Planning Division of the Health and Welfare Bureau for the older adults, Ministry of Health, Labour, and Welfare; and the World Health Organization (WHO) Collaborating Centre on Community Safety Promotion."