Table 10. Hertfordshire Cohort Study Vertical Impact on Bone in the Elderly (VIBE) study.

Objective:	To characterise levels and patterns of physical activity in older people and to investigate how physical activity affects bone health, muscle strength, physical capability, and osteoarthritis.
Methodology:	Participants completed a postal questionnaire. Wearable physical activity accelerometers were delivered and returned by post. This study was conducted in collaboration with the University of Bristol.
Key data availability:
•    Marital status •    Highest educational qualification •    Self-rated general health •    Co-morbidity •    Current medications •    Smoking status •    Alcohol consumption •    Dietary dairy intake •    Fried frailty self-reported components •    Warwick-Edinburgh Mental Well-being Scale •    Physical activity in the past 7 days •    Physical activity previously throughout life •    Fracture history since 45 years of age •    Falls history in the past year •    Falls Efficacy Scale fear of falling •    Use of a walking aid •    History of joint replacement •    Reproductive history (women only) •    Household composition •    Housing tenure •    Internet access at home •    Sources of income (own and spouse/partner’s) •    How well managing financially •    Receipt of care (from household members or external sources) •    SF-36 physical functioning scale •    Townsend disability scale •    Knee pain questionnaire •    Life-Space Assessment (University of Alabama at Birmingham scale) •    Short food frequency questionnaire •    7-day hip-worn triaxial accelerometer assessment of physical activity