Fatness, fitness, and cardiometabolic risk factors among sixth-grade youth

Russell Jago, Kimberly L. Drews, Robert G. McMurray, Debbe Thompson, Stella L. Volpe, Esther Moe, John M. Jakicic, Trang H. Pham, Steve Bruecker, Tara B. Blackshear, Zenong Yin

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Purpose: Examine whether cardiometabolic risk factors are predicted by fitness or fatness among adolescents. Methods: Participants are 4955 (2614 female) sixth-grade students with complete data from 42 US middle schools. Fasting blood samples were analyzed for total cholesterol, HDL-and LDL-cholesterol, triglyceride, glucose, and insulin concentrations. Waist circumference and blood pressure were assessed. Body mass index (BMI) was categorized as normal weight, overweight, or obese as a measure of fatness. Fitness was assessed using the multistage shuttle test and was converted into gender-specific quintiles. Gender-specific regression models, adjusted for race, pubertal status, and household education, were run to identify whether BMI group predicted risk factors. Models were repeated with fitness group and both fitness and fatness groups as predictors. Results: Means for each risk factor (except HDL, which was the reverse) were significantly higher (P <0.0001) with increased fatness and differed across all BMI groups (P <0.001). Waist circumference, LDL-cholesterol, triglycerides, diastolic blood pressure, and insulin were inversely associated with fitness (P <0.001). When both fatness and fitness were included in the model, BMI was associated (P <0.001) with almost all cardiometabolic risk factors; fitness was only associated with waist circumference (both genders), LDL-cholesterol (males), and insulin (both genders). Other associations between fitness and cardiometabolic risk factors were attenuated after adjustment for BMI group. Conclusions: Both fatness and fitness are associated with cardiometabolic risk factors among sixth-grade youth, but stronger associations were observed for fatness. Although maintaining high levels of fitness and preventing obesity may positively affect cardiometabolic risk factors, greater benefit may be obtained from obesity prevention.

Original languageEnglish (US)
Pages (from-to)1502-1510
Number of pages9
JournalMedicine and Science in Sports and Exercise
Volume42
Issue number8
DOIs
StatePublished - Aug 2010

Fingerprint

Body Mass Index
Waist Circumference
LDL Cholesterol
Insulin
Blood Pressure
Obesity
HDL Cholesterol
Fasting
Students
Education
Weights and Measures
Glucose
low density lipoprotein triglyceride

Keywords

  • ADOLESCENTS
  • CARDIOVASCULAR DISEASE
  • CHILDREN
  • FIT
  • OBESITY

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Fatness, fitness, and cardiometabolic risk factors among sixth-grade youth. / Jago, Russell; Drews, Kimberly L.; McMurray, Robert G.; Thompson, Debbe; Volpe, Stella L.; Moe, Esther; Jakicic, John M.; Pham, Trang H.; Bruecker, Steve; Blackshear, Tara B.; Yin, Zenong.

In: Medicine and Science in Sports and Exercise, Vol. 42, No. 8, 08.2010, p. 1502-1510.

Research output: Contribution to journalArticle

Jago, R, Drews, KL, McMurray, RG, Thompson, D, Volpe, SL, Moe, E, Jakicic, JM, Pham, TH, Bruecker, S, Blackshear, TB & Yin, Z 2010, 'Fatness, fitness, and cardiometabolic risk factors among sixth-grade youth', Medicine and Science in Sports and Exercise, vol. 42, no. 8, pp. 1502-1510. https://doi.org/10.1249/MSS.0b013e3181d322c4
Jago, Russell ; Drews, Kimberly L. ; McMurray, Robert G. ; Thompson, Debbe ; Volpe, Stella L. ; Moe, Esther ; Jakicic, John M. ; Pham, Trang H. ; Bruecker, Steve ; Blackshear, Tara B. ; Yin, Zenong. / Fatness, fitness, and cardiometabolic risk factors among sixth-grade youth. In: Medicine and Science in Sports and Exercise. 2010 ; Vol. 42, No. 8. pp. 1502-1510.
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