Average acceleration and intensity gradient of 9–11-year-old rural and urban Kenyan school-going children and associations with cardiorespiratory fitness and BMI: The Kenya-LINX project - Stanley K. Kinuthia; Gareth Stratton; Lucy J. Wachira; Victor O. Okoth; George Evans Owino; Sophie Ochola; Festus Kiplamai; Vincent Onywera; Nils Swindell (PLoS ONE, 2025)