These .sav and .csv files are associated with the following publication: "Fedewa MV, Hathaway ED, Ward-Ritacco CL, Williams TD, Dobbs WC. Effect of chronic exercise training on plasma leptin: A systematic review and meta-analysis of randomized controlled trials. Sports Medicine. 2018."SAV files can be viewed/processed with SPSS (Statistical Package for the Social Sciences) software.CSV (Comma-separated value) files can be viewed/processed with spreadsheet software such as Microsoft Excel.Both of these files contain the same data set research.These .sav and .csv files are licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/).