Effects of high-intensity interval training on physical morphology, cardiopulmonary function, and metabolic indicators in older adults: a systematic review and meta-analysis - Men, Jie; Zhao, Chengrui; Xiang, Chenmin; Zhu, Guoyu; Yu, Zhengyang; Wang, Pengbo; Wu, Simin; Zhang, Yuxi; Li, Yishan; Wang, Liuliu; Gong, Xueyan; Yang, Xiang; et al. (Frontiers in Endocrinology, 2025)