Kevin C. Deere

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OBJECTIVE To measure the levels and patterns of physical activity, using accelerometers, of 11-year-old children participating in the Avon Longitudinal Study of Parents and Children (ALSPAC). DESIGN Cross-sectional analysis. SETTING ALSPAC is a birth cohort study located in the former county of Avon, in the southwest of England. This study used data(More)
BACKGROUND Objective methods can improve accuracy of physical activity measurement in field studies but uncertainties remain about their use. METHODS Children age 11 years from the Avon Longitudinal Study of Parents and Children (ALSPAC), were asked to wear a uni-axial accelerometer (MTI Actigraph) for 7 days. RESULTS Of 7159 children who attended for(More)
PURPOSE This study examined the seasonal and intraindividual variation in objectively measured physical activity in 11- to 12-yr-olds. METHODS Children were asked to wear a uniaxial accelerometer for 7 d four times throughout the course of about a year. A random-intercepts model was used to separate the inter- and intraindividual components of physical(More)
PURPOSE Time spent in "sports/outdoor activity" has shown a negative association with incident myopia during childhood. We investigated the association of incident myopia with time spent outdoors and physical activity separately. METHODS Participants in the Avon Longitudinal Study of Parents and Children (ALSPAC) were assessed by noncycloplegic(More)
OBJECTIVE To investigate associations between physical activity at age 12 and subsequent adiposity at age 14. DESIGN Prospective birth cohort study with data collected between 2003 and 2007. SETTING Original recruitment in 1991-2 of 14,541 pregnant women living in the former County of Avon (United Kingdom). PARTICIPANTS At age 12, 11,952 children were(More)
OBJECTIVE To determine whether joint hypermobility (JH) in childhood is a risk factor for the subsequent development of musculoskeletal pain. METHODS JH was determined according to the Beighton score at age 13.8 years in children from the Avon Longitudinal Study of Parents and Children (ALSPAC), using a cutoff of ≥6 for the presence of hypermobility.(More)
OBJECTIVE The aims of this study were to develop an equation to predict energy expenditure and to derive cut-points for moderate and vigorous physical activity intensity from the Actigraph accelerometer output in children aged 12 years. METHODS The children performed a series of activities (lying, sitting, slow walking, fast walking, hopscotch and(More)
The pathological processes associated with development of cardiovascular disease begin early in life. For example, elevated blood pressure (BP) can be seen in childhood and tracks into adulthood. The relationship between physical activity (PA) and BP in adults is well-established, but findings in children have been inconsistent, with few studies measuring(More)
OBJECTIVE To examine factors in early life (up to age 5 years) that are associated with objectively measured physical activity in 11-12 year olds. DESIGN Prospective cohort study. SETTING Avon longitudinal study of parents and children, United Kingdom. PARTICIPANTS Children aged 11-12 years from the Avon longitudinal study of parents and children. (More)
Physical activity (PA) may need to produce high impacts to be osteogenic. The aim of this study was to identify threshold(s) for defining high impact PA for future analyses in the VIBE (Vertical Impact and Bone in the Elderly) study, based on home recordings with triaxial accelerometers. Recordings were obtained from 19 Master Athlete Cohort (MAC; mean 67.6(More)