BACKGROUND: Minority girls are disproportionately affected by overweight and obesity. The independent effects of physical activity (PA), sedentary behavior (SB), and diet are not well understood. OBJECTIVE: This study examined the individual influences of PA, SB and diet on fat mass in Latina and African American (AA) girls, aged 8-11. METHODS: Baseline data from a longitudinal cohort study in minority girls is presented. Multiple linear regression analysis assessed the effects of PA, SB, and energy intake on fat mass, adjusting for lean mass, age, Tanner stage and ethnicity. RESULTS: Participants were 53 Latina and AA girls (77% Latina; M age=9.8 +/- .9; M(BMI%)=80.8 +/- 23.1). Moderate-to-vigorous physical activity (MVPA) by accelerometry (beta= -.13, P<.01) and lean mass (beta=.69, P<.001) were associated with fat mass (Model R2=.63; P<.0001). MVPA by 3-day-physical-activity-recall (beta=-.04, P=.01) and lean mass (beta=.75, P<.001) were associated with fat mass (Model R2=.61; P<.0001). SB and energy intake were not associated with fat mass in any model. CONCLUSION: Using both objective and subjective measures of PA, MVPA, but not SB or diet, was associated with higher fat mass in Latina and AA girls, independent of lean mass, age, Tanner stage, and ethnicity. Prospective studies are needed to clarify the differential impact of diet and activity levels on adiposity in this population.
BACKGROUND: Minority girls are disproportionately affected by overweight and obesity. The independent effects of physical activity (PA), sedentary behavior (SB), and diet are not well understood. OBJECTIVE: This study examined the individual influences of PA, SB and diet on fat mass in Latina and African American (AA) girls, aged 8-11. METHODS: Baseline data from a longitudinal cohort study in minority girls is presented. Multiple linear regression analysis assessed the effects of PA, SB, and energy intake on fat mass, adjusting for lean mass, age, Tanner stage and ethnicity. RESULTS:Participants were 53 Latina and AA girls (77% Latina; M age=9.8 +/- .9; M(BMI%)=80.8 +/- 23.1). Moderate-to-vigorous physical activity (MVPA) by accelerometry (beta= -.13, P<.01) and lean mass (beta=.69, P<.001) were associated with fat mass (Model R2=.63; P<.0001). MVPA by 3-day-physical-activity-recall (beta=-.04, P=.01) and lean mass (beta=.75, P<.001) were associated with fat mass (Model R2=.61; P<.0001). SB and energy intake were not associated with fat mass in any model. CONCLUSION: Using both objective and subjective measures of PA, MVPA, but not SB or diet, was associated with higher fat mass in Latina and AA girls, independent of lean mass, age, Tanner stage, and ethnicity. Prospective studies are needed to clarify the differential impact of diet and activity levels on adiposity in this population.
Authors: B E Ainsworth; W L Haskell; M C Whitt; M L Irwin; A M Swartz; S J Strath; W L O'Brien; D R Bassett; K H Schmitz; P O Emplaincourt; D R Jacobs; A S Leon Journal: Med Sci Sports Exerc Date: 2000-09 Impact factor: 5.411
Authors: Sue Y S Kimm; Nancy W Glynn; Andrea M Kriska; Bruce A Barton; Shari S Kronsberg; Stephen R Daniels; Patricia B Crawford; Zak I Sabry; Kiang Liu Journal: N Engl J Med Date: 2002-09-05 Impact factor: 91.245
Authors: Charles E Matthews; Kong Y Chen; Patty S Freedson; Maciej S Buchowski; Bettina M Beech; Russell R Pate; Richard P Troiano Journal: Am J Epidemiol Date: 2008-02-25 Impact factor: 4.897
Authors: Stewart G Trost; Russell R Pate; James F Sallis; Patty S Freedson; Wendell C Taylor; Marsha Dowda; John Sirard Journal: Med Sci Sports Exerc Date: 2002-02 Impact factor: 5.411
Authors: Janet E Fulton; Shifan Dai; Lyn M Steffen; Jo Anne Grunbaum; Syed M Shah; Darwin R Labarthe Journal: Am J Prev Med Date: 2009-07 Impact factor: 5.043
Authors: June Stevens; Fang-Shu Ou; Kimberly P Truesdale; Donglin Zeng; Amber E Vaughn; Charlotte Pratt; Dianne S Ward Journal: Food Nutr Res Date: 2015-12-17 Impact factor: 3.894
Authors: Charles S Layne; Nathan H Parker; Erica G Soltero; José Rosales Chavez; Daniel P O'Connor; Martina R Gallagher; Rebecca E Lee Journal: BMC Public Health Date: 2015-09-18 Impact factor: 3.295