Weight Gain in College Freshmen: Emerging Adulthood and Health Responsibility

Background and Purpose: College freshmen gain weight at double the rate of same-age peers, and personal, interpersonal, and situational factors play a role in this phenomenon. The objectives of the study were to quantify weight change in first semester college students and to identify predictors of weight gain. Methods: In fall 2011, 76 unmarried freshmen, living in dormitories at a public, southwestern U.S. university, participated in the study. Heights and weights were measured at the beginning and end of the semester, and an on-line survey was administered at both times. Results: In the first semester of college, 43% gained clinically significant weight (> 3.5 pounds) and 15% gained more than 10 pounds. The group at highest risk was students with a normal BMI; 50% of this cohort gained clinically significant weight. Two variables predicted 12% of weight gain: a low level of health responsibility and a normal BMI. Conclusion: For college freshmen at highest risk of precipitous weight gain, health promotion strategies aimed at maximizing health responsibility is needed. Additionally, an integration of mediating influences related to the developmental stage of emerging adulthood, such as perceived social norms, positive peer influence and self-efficacy may result in improved long-term lifestyle practices.