PURPOSE: To describe physical activity levels of children (6-11 yr), adolescents (12-19 yr), and adults (20+ yr), using objective data obtained with accelerometers from a representative sample of the U.S. population. METHODS: These results were obtained from the 2003-2004 National Health and Nutritional Examination Survey (NHANES), a cross-sectional study of a complex, multistage probability sample of the civilian, noninstitutionalized U.S. population in the United States. Data are described from 6329 participants who provided at least 1 d of accelerometer data and from 4867 participants who provided four or more days of accelerometer data. RESULTS: Males are more physically active than females. Physical activity declines dramatically across age groups between childhood and adolescence and continues to decline with age. For example, 42% of children ages 6-11 yr obtain the recommended 60 min x d(-1) of physical activity, whereas only 8% of adolescents achieve this goal. Among adults, adherence to the recommendation to obtain 30 min x d(-1) of physical activity is less than 5%. CONCLUSIONS: Objective and subjective measures of physical activity give qualitatively similar results regarding gender and age patterns of activity. However, adherence to physical activity recommendations according to accelerometer-measured activity is substantially lower than according to self-report. Great care must be taken when interpreting self-reported physical activity in clinical practice, public health program design and evaluation, and epidemiological research.
PURPOSE: To describe physical activity levels of children (6-11 yr), adolescents (12-19 yr), and adults (20+ yr), using objective data obtained with accelerometers from a representative sample of the U.S. population. METHODS: These results were obtained from the 2003-2004 National Health and Nutritional Examination Survey (NHANES), a cross-sectional study of a complex, multistage probability sample of the civilian, noninstitutionalized U.S. population in the United States. Data are described from 6329 participants who provided at least 1 d of accelerometer data and from 4867 participants who provided four or more days of accelerometer data. RESULTS: Males are more physically active than females. Physical activity declines dramatically across age groups between childhood and adolescence and continues to decline with age. For example, 42% of children ages 6-11 yr obtain the recommended 60 min x d(-1) of physical activity, whereas only 8% of adolescents achieve this goal. Among adults, adherence to the recommendation to obtain 30 min x d(-1) of physical activity is less than 5%. CONCLUSIONS: Objective and subjective measures of physical activity give qualitatively similar results regarding gender and age patterns of activity. However, adherence to physical activity recommendations according to accelerometer-measured activity is substantially lower than according to self-report. Great care must be taken when interpreting self-reported physical activity in clinical practice, public health program design and evaluation, and epidemiological research.
Authors: U Ekelund; E Kolle; J Steene-Johannessen; K E Dalene; A K O Nilsen; S A Anderssen; B H Hansen Journal: Int J Obes (Lond) Date: 2017-08-04 Impact factor: 5.095
Authors: Kristine E Ensrud; Terri L Blackwell; Jane A Cauley; Thuy-Tien L Dam; Peggy M Cawthon; John T Schousboe; Elizabeth Barrett-Connor; Katie L Stone; Douglas C Bauer; James M Shikany; Dawn C Mackey Journal: J Am Geriatr Soc Date: 2014-11-03 Impact factor: 5.562
Authors: Julie Loebach Wetherell; Hayley S Ripperger; Michelle Voegtle; Beau M Ances; David Balota; Emily S Bower; Colin Depp; Lisa Eyler; Erin R Foster; Denise Head; Tamara Hershey; Steven Hickman; Noralinda Kamantigue; Samuel Klein; J Philip Miller; Michael D Yingling; Jeanne Nichols; Ginger E Nicol; Bruce W Patterson; Thomas L Rodebaugh; Joshua S Shimony; Abraham Snyder; Mary Stephens; Susan Tate; Mary L Uhrich; David Wing; Gregory F Wu; Eric J Lenze Journal: Clin Trials Date: 2020-06-27 Impact factor: 2.486
Authors: Lauren E Gyllenhammer; Amanda K Vanni; Courtney E Byrd-Williams; Marc Kalan; Leslie Bernstein; Jaimie N Davis Journal: J Phys Act Health Date: 2012-10-04