Accelerometer based independent and combined associations of physical activity and sedentary time on physical fitness in preschool children: a cross-sectional study. - Fang, Chunyi; Li, Longkai; Jin, Zhenhua; He, Changshuang; Liang, Feng; Ye, Xiangming; Lu, Yaofei; Quan, Minghui (Scientific Reports, 2025)