passages.id: 720
passages.type: sentence
passages.text: They wore a wrist-watch-like actimetry sensor to measure physical activity and sun exposure 24 hours a day .
entities.id: 721
entities.type: intervention
entities.text: physical activity
entities.id: 722
entities.type: intervention
entities.text: sun exposure
entities.id: 723
entities.type: outcome
entities.text: physical activity and sun exposure