title: Adolescent predictors of objectively measured physical activity and sedentary behaviour at age 42: the Amsterdam Growth and Health Longitudinal Study (AGAHLS).
abstract: BACKGROUND
  This study investigated the associations of physical characteristics and personality in adolescence with physical activity and sedentary behaviour in adulthood.
  
  
  RESULTS
  Physical characteristics (i.e. objectively measured BMI, sum of skin folds, MOPER test battery performance), and personality (i.e. self-reported inadequacy, social inadequacy, rigidity, self-sufficiency/recalcitrance, dominance, achievement motivation, facilitating anxiety, debilitating anxiety, and social desirability) were assessed in 217 adolescent boys (Mean 13.0, SD 0.6) and girls (Mean 12.9, SD 0.6). Twenty-nine years later, at the age of 42, their physical activity and sedentary behaviour were assessed by means of accelerometry. Boys who scored lower on self-sufficiency/recalcitrance and higher on facilitating anxiety spent more time sedentary in adulthood. Girls with a superior standing high jump performance, and a lower score on social desirability spent more time sedentary in adulthood. In contrast with sedentary behaviour, physical activity at age 42 year could not be predicted by physical characteristics or personality in adolescence.
  
  
  CONCLUSIONS
  Sedentary behaviour in adulthood was partly explained by physical characteristics and/or personality in adolescence. Thus, our results suggest that it may be possible to identify people who are at risk of becoming sedentary at a rather young age.
authors.affiliation: Department of Public and Occupational Health, EMGO+ Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
authors.forename: Léonie
authors.initials: L
authors.lastname: Uijtdewilligen
authors.forename: Amika S
authors.initials: AS
authors.lastname: Singh
authors.forename: Jos W R
authors.initials: JW
authors.lastname: Twisk
authors.forename: Lando L J
authors.initials: LL
authors.lastname: Koppes
authors.forename: Willem
authors.initials: W
authors.lastname: van Mechelen
authors.forename: Mai J M
authors.initials: MJ
authors.lastname: Chinapaw
mesh_terms: D000293:Adolescent; D000328:Adult; D001007:Anxiety; D015992:Body Mass Index; D002648:Child; D015444:Exercise / Q000523:psychology; D005260:Female; D015438:Health Behavior; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009068:Movement; D009426:Netherlands; D010551:Personality; D010809:Physical Fitness; D012929:Psychological Distance; D057185:Sedentary Behavior; D020377:Self Efficacy; D012737:Sex Factors; D012885:Skinfold Thickness