Trunk muscle quality and quantity are associated with renal volume in nondiabetic people.

"CONFLICT OF INTEREST STATEMENT H.O. received grant support from the Japan Society for the Promotion of Science and received personal fees from MSD K.K., Mitsubishi Tanabe Pharma Corporation, Sumitomo Dainippon Pharma Co., Ltd, Novo Nordisk Pharma Ltd, Daiichi Sankyo Co., Ltd, Eli Lilly Japan K.K., Kyowa Hakko Kirin Company Ltd, Kissei Pharmaceutical Co., Ltd, Takeda Pharmaceutical Co., Ltd, Kowa Pharmaceutical Co., Ltd, Ono Pharmaceutical Co., Ltd and Sanofi K.K. Y.H. received grants from Asahi Kasei Pharma, and received personal fees from Novo Nordisk Pharma Ltd, Sanofi K.K., Takeda Pharmaceutical Co., Ltd, Ono Pharmaceutical Co., Ltd, Sumitomo Dainippon Pharma Co., Ltd, Mitsubishi Tanabe Pharma Corp., Daiichi Sankyo Co., Ltd and Kowa Company, Ltd outside the submitted work. M.F. received grants from Ono Pharma Co., Ltd, Oishi Kenko Inc., Yamada Bee Farm, Nippon Boehringer Ingelheim Co., Ltd, Kissei Pharma Co., Ltd, Mitsubishi Tanabe Pharma Corp., Daiichi Sankyo Co., Ltd, Sanofi K.K., Takeda Pharma Co., Ltd, Astellas Pharma Inc., MSD K.K., Kyowa Kirin Co., Ltd, Sumitomo Dainippon Pharma Co., Ltd, Kowa Pharma Co., Ltd, Novo Nordisk Pharma, Ltd, Sanwa Kagagu Kenkyusho Co., Ltd, Eli Lilly, Japan, K.K., Taisho Pharma Co., Ltd, Terumo Corp., Tejin Pharma, Ltd, Nippon Chemiphar Co., Ltd, Abbott Japan Co., Ltd, Johnson & Johnson K.K. Medical Co. and TERUMO CORPORATION, and received personal fees from Nippon Boehringer Ingelheim Co., Ltd, Kissei Pharma Co., Ltd, Mitsubishi Tanabe Pharma Corp., Daiichi Sankyo Co., Ltd, Sanofi K.K., Takeda Pharma Co., Ltd, Astellas Pharma Inc., MSD K.K., Kyowa Kirin Co., Ltd, Sumitomo Dainippon Pharma Co., Ltd, Kowa Pharma Co., Ltd, Novo Nordisk Pharma Ltd, Ono Pharma Co., Ltd, Sanwa Kagaku Kenkyusho Co., Ltd, Eli Lilly Japan K.K., Taisho Pharma Co., Ltd, Bayer Yakuhin, Ltd, AstraZeneca K.K., Mochida Pharma Co., Ltd, Abbott Japan Co., Ltd, Teijin Pharma, Ltd, Arkray Inc., Medtronic Japan Co., Ltd, Nipro Corp. and TERUMO CORPORATION, outside the submitted work. Sponsors were not involved in any data collection, analysis or its interpretation; the design of the study; or in the writing or final submission of this manuscript. Affiliated research foundations, or authors and their immediate families have not received any financial support or other benefits from any company associated with the subject matter of this manuscript. Although affiliated with a department that is financially supported by pharmaceutical companies, the authors have not received specific funding for this investigation, and this did not affect their following of journal policies with regard to the sharing of data and materials. The other authors declare that they have no conflicts of interest to disclose."

"FUNDING No specific funding or any other benefit was received for this investigation or for publishing this manuscript."