northwestern university feinberg school of medicine obesity, physical activity, and sedentary...
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Northwestern University Feinberg School of Medicine
Obesity, Physical Activity, and Sedentary Behavior in College Students
Christine Pellegrini, PhDResearch Assistant ProfessorDepartment of Preventive Medicine
July 30, 2015
35% of Students are Overweight or Obese
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American College Health Association-National College Health Assessment: Reference Group Executive Summary Spring 2014
Underweight5%
Healthy Weight61%
Overweight23%
Obese12%
Weight Gain Greatest in Early to Mid-20’s
3 Lewis et al., 2000
Incidence of Metabolic Syndrome Highest Among Weight Gainers
Lloyd-Jones et al. Circulation. 2007;115:1004-1011
Prevent Weight Gain
Self-Reported Participation in Physical Activity
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Male Female Total0 days 22.5% 22.1% 22.3%1-4 days 54.4% 57.6% 56.5%5-7 days 23.1% 20.3% 21.2%
American College Health Association-National College Health Assessment: Reference Group Executive Summary Spring 2014
MODERATE Intensity Activity for ≥ 30 minutes over past 7 days
Male Female Total
0 days 33.1% 38.8% 36.9%
1-4 days 30.9% 30.0% 30.3%
5-7 days 36.1% 31.2% 32.9%
VIGOROUS Intensity Activity for ≥ 20 minutes over past 7 days
77.7%
63.2%
Caspersen et al, 2000
Rates of Inactivity Rise with Age
≥50% is Spent in Sedentary Behavior
Matthews et al. Am. J. Epidemiol. 2008;167:875-881
School - Lectures- Studying- Homework - Computer
Leisure - Computer- TV - Movies- Video games- Smartphone - Tablets - Socializing
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Owen et al., 2011
Multiple Levels of Influence on Behavior
Emerging Adulthood is Prime Time to Intervene to Preserve Health
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• Increased independence • New responsibilities• Autonomy in decision-making• Development of a self-identity • New support systems and interpersonal
influences• Establishment of health behaviors
Nelson et al., 2008
Discussion