Erik A Willis1, Lauren T Ptomey2, Amanda N Szabo-Reed2, Jeffery J Honas2, Jaehoon Lee3, Richard A Washburn2, Joseph E Donnelly2. 1. Cardiovascular Research Institute, Department of Internal Medicine, The University of Kansas Medical Center, Kansas City, KS, USA. Electronic address: ewillis@ku.edu. 2. Cardiovascular Research Institute, Department of Internal Medicine, The University of Kansas Medical Center, Kansas City, KS, USA. 3. Institute for Measurement, Methodology, Analysis and Policy, Texas Tech University, Lubbock, TX, USA.
Abstract
BACKGROUND: Accumulating moderate-to-vigorous physical activity (MVPA) in bouts of 10 min is associated with improved cardio-metabolic risk factors (CMRF) in adults. PURPOSE: To assess the association between the lengths of MVPA bouts and CMRF in elementary school age children. METHODS: The sample included 396, 2nd and 3rd grade students from eastern Kansas (182 boys, 214 girls; age 7.6 ± 0.6 years; Body Mass Index Percentile [BMI%ile]: 61.6 ± 9.3) in the fall of 2011. Analyses were conducted in 2014. MVPA bouts were defined as sporadic (<5 min), short (5-<10 min) or medium-to-long (≥10 min). Latent profile analysis was used to identify distinct subgroups (classes) based on the composition of MVPA bouts. Bayesian probability-based Wald chi-square test was used to compare CMRF between classes controlling for age, sex, BMI%ile, and total moderate and total vigorous PA. RESULTS: Three classes of accumulated physical activity were identified: A (n=78); 97% sporadic 2%, short, 1% medium-to-long bouts; B (n=174); 93% sporadic, 5% short, 2% medium-to-long; C (n=144); and 86% sporadic, 9% short, 5% medium-to-long bouts. Class C had significantly lower BMI%ile (57.3 ± 2.3 (SE)), waist circumference (WC; 55.8 ± 0.5 cm) compared with Class A (BMI%ile=70.9±0.5, p<0.01.030, WC=61.0 ± 1.0 cm, p=0.<0.01). Class B had significantly lower WC (56.6 ± 0.6 cm), p<0.01 than Class A. No significant differences between classes were shown in other outcomes. CONCLUSION: Children who accumulated MVPA with a higher percentage of short (5-<10 min) and medium-to-long bouts (≥10min) had lower BMI%ile, and WC compared with children who accumulated MVPA with a lower percentage short and medium-to-long bouts.
BACKGROUND: Accumulating moderate-to-vigorous physical activity (MVPA) in bouts of 10 min is associated with improved cardio-metabolic risk factors (CMRF) in adults. PURPOSE: To assess the association between the lengths of MVPA bouts and CMRF in elementary school age children. METHODS: The sample included 396, 2nd and 3rd grade students from eastern Kansas (182 boys, 214 girls; age 7.6 ± 0.6 years; Body Mass Index Percentile [BMI%ile]: 61.6 ± 9.3) in the fall of 2011. Analyses were conducted in 2014. MVPA bouts were defined as sporadic (<5 min), short (5-<10 min) or medium-to-long (≥10 min). Latent profile analysis was used to identify distinct subgroups (classes) based on the composition of MVPA bouts. Bayesian probability-based Wald chi-square test was used to compare CMRF between classes controlling for age, sex, BMI%ile, and total moderate and total vigorous PA. RESULTS: Three classes of accumulated physical activity were identified: A (n=78); 97% sporadic 2%, short, 1% medium-to-long bouts; B (n=174); 93% sporadic, 5% short, 2% medium-to-long; C (n=144); and 86% sporadic, 9% short, 5% medium-to-long bouts. Class C had significantly lower BMI%ile (57.3 ± 2.3 (SE)), waist circumference (WC; 55.8 ± 0.5 cm) compared with Class A (BMI%ile=70.9±0.5, p<0.01.030, WC=61.0 ± 1.0 cm, p=0.<0.01). Class B had significantly lower WC (56.6 ± 0.6 cm), p<0.01 than Class A. No significant differences between classes were shown in other outcomes. CONCLUSION:Children who accumulated MVPA with a higher percentage of short (5-<10 min) and medium-to-long bouts (≥10min) had lower BMI%ile, and WC compared with children who accumulated MVPA with a lower percentage short and medium-to-long bouts.
Authors: Robert J Kuczmarski; Cynthia L Ogden; Shumei S Guo; Laurence M Grummer-Strawn; Katherine M Flegal; Zuguo Mei; Rong Wei; Lester R Curtin; Alex F Roche; Clifford L Johnson Journal: Vital Health Stat 11 Date: 2002-05
Authors: Richard P Troiano; David Berrigan; Kevin W Dodd; Louise C Mâsse; Timothy Tilert; Margaret McDowell Journal: Med Sci Sports Exerc Date: 2008-01 Impact factor: 5.411
Authors: Calum Mattocks; Andy Ness; Sam Leary; Kate Tilling; Stephen N Blair; Julian Shield; Kevin Deere; Joanne Saunders; Joanne Kirkby; George Davey Smith; Jonathan Wells; Nicholas Wareham; John Reilly; Chris Riddoch Journal: J Phys Act Health Date: 2008
Authors: Chris J Riddoch; Lars Bo Andersen; Niels Wedderkopp; Maarike Harro; Lena Klasson-Heggebø; Luis B Sardinha; Ashley R Cooper; Ulf Ekelund Journal: Med Sci Sports Exerc Date: 2004-01 Impact factor: 5.411
Authors: Gabrielle P Jenkins; Kelly R Evenson; Amy H Herring; Derek Hales; June Stevens Journal: Med Sci Sports Exerc Date: 2017-09 Impact factor: 5.411
Authors: Simone J J M Verswijveren; Karen E Lamb; Lisa A Bell; Anna Timperio; Jo Salmon; Nicola D Ridgers Journal: PLoS One Date: 2018-08-16 Impact factor: 3.240
Authors: Jakob Tarp; Abbey Child; Tom White; Kate Westgate; Anna Bugge; Anders Grøntved; Niels Wedderkopp; Lars B Andersen; Greet Cardon; Rachel Davey; Kathleen F Janz; Susi Kriemler; Kate Northstone; Angie S Page; Jardena J Puder; John J Reilly; Luis B Sardinha; Esther M F van Sluijs; Ulf Ekelund; Katrien Wijndaele; Søren Brage Journal: Int J Obes (Lond) Date: 2018-07-13 Impact factor: 5.095
Authors: Janelle A Gifford; Josephine D Gwynn; Louise L Hardy; Nicole Turner; Lily C Henderson; Christine Innes-Hughes; Victoria M Flood Journal: Children (Basel) Date: 2018-07-13