Xu-Peng Zhang

Dynamic risk prediction of physical fitness failure in college students: a four-year longitudinal landmark supermodel study

Purpose To develop and validate a dynamic risk prediction model (Landmark Supermodel) for identifying college students at risk of physical fitness failure by senior year, and to determine the optimal intervention window through sequential risk updating. Methods A total of 4,006 college students (2,745 males; 1,261 fema...