Primary school children get less active with age, finds a University of Bristol cohort study (n=1,837) of Year 1 (5–6 year olds) to Year 4 (8–9 year olds).

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Primary school children get less active with age, finds a University of Bristol cohort study (n=1,837) of Year 1 (5–6 year olds) to Year 4 (8–9 year olds).