AI Insight
This longitudinal study of 851 Chinese middle school students tracked physical activity and social anxiety over multiple time points using validated assessment tools and growth curve modeling. Researchers found that physical activity levels initially decreased then increased over time, while social anxiety showed the opposite pattern of first increasing then decreasing. Higher initial physical activity levels were significantly associated with lower baseline social anxiety and slower rates of social anxiety increase during adolescence.
Why it matters
The findings suggest that promoting regular physical activity among adolescents could serve as a practical intervention strategy to reduce social anxiety and buffer against its development during this vulnerable developmental period. This has implications for school-based mental health programs and preventive care approaches.
Understand the Science
ObjectiveThis study examined the dynamic association between adolescents’ physical activity levels and social anxiety using a latent growth curve model.MethodsA longitudinal survey was conducted with 851 students from five middle schools in Sichuan, Jiangsu, and Guangdong provinces, China. Assessments were conducted at 3-month intervals. Physical activity and social anxiety were measured using the IPAQ and the Social Anxiety Scale for Adolescents. Latent growth curve models were estimated using Mplus 8.0.Results(1) Physical activity followed a nonlinear trend, initially decreasing and then increasing (initial level = 3.267, p < 0.01; linear rate = −0.087, p < 0.01; nonlinear rate = 0.026, p < 0.01). (2) Social anxiety showed an “increase-then-decrease” trajectory (initial level = 2.713, p < 0.01; linear rate = 0.178, p < 0.01; nonlinear rate = −0.064, p < 0.01). (3) The initial level of physical activity negatively predicted social anxiety’s initial level (β = −0.250, p < 0.001) and change rate (β = −0.154, p < 0.001).ConclusionHigher physical activity levels were associated with lower social anxiety and slower increases in social anxiety over time. Promoting regular physical activity may help support adolescent mental health.
Source: The impact of physical activity on adolescent social anxiety: a growth curve model analysis