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are negligible and estimates for more recent children are lower than those for children surveyed in the 1980s to the mid-1990s. ...
Table 5.2 Mean physical activity levels (PALs) of children and adolescents in industrial and developing countries Age (years) In ...
Questionnaires and Activity Diaries These instruments tend to provide less accurate assessments of physical activity, but are mo ...
approximations. Nevertheless, significant numbers of adolescents 13–15 years of age throughout the world did not meet the recomm ...
Physical Activity Report Cards Physical activity and sedentary behavior levels of children and adolescents are of interest to ma ...
Corresponding data for adolescents span variable time intervals, are based on self-report, and use variable criteria for activit ...
Recent Trends in Physical Inactivity Across Time Many physically inactive behaviors have been and still are a fact of life—schoo ...
85%. Youth in 7–12th grades spent 1:35 per day sending–receiving text messages in 2009. Overall, boys spent more time with media ...
decreased among children 6–8 years from 1997 to 2003, but increased in children 9 – 12 years. Time in sports decreased across su ...
Correlates of Physical Activity and Inactivity More attention has been given to potential correlates of physical activity than t ...
Correlates Among Younger Children Among young children (* 3 – 8 years), several factors are consistently associated with physica ...
children and adolescents and other potential correlates. Several questions merit consideration. What factors, biological, behavi ...
flow, is obtained for individual girls followed prospectively at relatively short intervals during adolescence (3–6 months, thou ...
choose to participate or drop out from a sport, selection decisions in most sports are ordinarily made by adults without input f ...
Studies spanning early (Fisher et al. 2005 ; Williams et al. 2008 ) and later (Wrotniak et al. 2006 ; Lopes et al. 2011 ) childh ...
(one mile run, pull-ups, sit-ups, sit and reach, skinfold thickness) and physical activity (accelerometry, parental report, chil ...
Overview of Correlates The preceding data are largely derived from studies of children and adolescents in economically better-of ...
Fitness and Health Benefits of Physical Activity There is considerable interest in the health andfitness benefits of a physicall ...
Table 5.6 Relationships between habitual physical activity (PA) and indicators of health and fitness, and trends in studies of t ...
of sexual maturation and the adolescent spurt. Several outcomes of interest (e.g., bone mineral content, aerobicfitness, HDL-C, ...
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