AUTHOR=Niu Yueyue , Chen Xingjuan , Feng Ling TITLE=Can weekend warriors and other leisure-time physical activity patterns reduce the atherogenic index of plasma (AIP)? A cross-sectional analysis based on NHANES 2007-2018 JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1511888 DOI=10.3389/fendo.2025.1511888 ISSN=1664-2392