Portal de Periódicos da CAPES

Why Some Boys “Bash and Crash”

2015; Lippincott Williams & Wilkins; Volume: 47; Issue: 5S Linguagem: Inglês

10.1249/01.mss.0000478739.28078.71

1530-0315

James A. Janssen, Jacek Kołacz, Lilly Shanahan, Meghan J. Gangel, Vanessa V. Volpe, Susan D. Calkins, Susan P. Keane, Laurie Wideman,

Obesity, Physical Activity, Diet

PURPOSE: To determine the relationship between childhood temperament and patterns of self-reported physical activity (PA) and screen time (ST) in adolescence. METHODS: Data from an ongoing longitudinal study were utilized [N=118; 57% female, M age=15yr]. When children were 4, 5, and 7 years old, caregivers completed the Activity Level (AL), High Intensity Pleasure (HIP), and Low Intensity Pleasure (LIP) subscales of the Child Behavior Questionnaire (CBQ). AL assesses the child’s gross motor activity, while HIP and LIP measures the enjoyment of tasks based on intensity, rate and complexity of the stimuli. At 15 years of age, participants self-reported PA and total ST using the Godin Leisure-Time Exercise Questionnaire and Youth Risk Behavior Survey (YRBS), respectively. From this, participants were divided into four groups, representing patterns of low and high PA and ST. The “bash and crash” group was defined based upon ≥3 bouts of strenuous exercise per week (high PA) and ≥3 daily hours of ST (high ST). Poisson regressions were used to predict hours of PA and ST from temperament subscales. Logistic regressions were used to predict membership in the “bash and crash” group. All models were estimated separately for males and females and BMI, SES, and race were used as covariates. RESULTS: In males, AL at age 7 predicted both PA (B=.35, p<.01) and ST (B=.14, p=.01) at age 15. “Bash and crash” behavior was more prevalent among males than females (18% of females, 45% of males). Male “bash and crash” behavior at age 15 was positively predicted by HIP at age 4, 5, and 7 (OR: 3.44, 2.88, 6.99; p’s<.05) and LIP at age 4 (OR: 8.36; p<.05). Temperament did not predict PA, ST, or “bash and crash” behavior in females. CONCLUSION: The relationships between temperament and PA/ST are different between males and females. Some temperament characteristics, such as AL, appear important for both increased PA and ST for males. A propensity for high intensity pleasure (the seeking of more intense stimuli) may be satisfied by higher levels of strenuous PA and ST (“bash and crash”) in these adolescents. The lack of association between childhood temperament and adolescent PA/ST in females may be reflective of environment (peer, family, school) being more influential for female health behaviors. Support provided by NIMH 58144, NICHD R01 HD078346-01A1