Objectively measured physical activity and sedentary time in youth: the International children's accelerometry database (ICAD). [No authors listed] GSID: B2R5zoh_oocJ
Objectively measured physical activity and sedentary time during childhood, adolescence and young adulthood: a cohort study. Konstabel K, Ortega FB. FB Ortega, K Konstabel, E Pasquali, JR Ruiz… - PloS one, 2013 - journals.plos.org GSID: hRj1TIrZdQQJ
Timing of the decline in physical activity in childhood and adolescence: Gateshead Millennium Cohort Study. [No authors listed] GSID: NLt7sD2MmOgJ