Visceral adiposity index, cardiorespiratory fitness, and fasting plasma glucose associations in adolescents.

BACKGROUND

The global rise in the prevalence of type 2 diabetes mellitus (T2DM) in children and adolescents is partly linked to the increasing rates of childhood obesity and physical inactivity.

AIM

To explore the independent relationships of visceral adiposity index (VAI) and cardiorespiratory fitness (CRF) with fasting plasma glucose (FPG) in adolescents.

METHODS

This descriptive cross-sectional study included 403 adolescents (202 boys and 201 girls) aged 11-19 years. Participants were evaluated for VAI, CRF, and FPG. Regression models, adjusted for age and maturity status, were used to assess the associations between VAI, CRF, and FPG.

RESULTS

The prevalence of T2DM risk was 15.3% (girls = 7.4%; boys = 7.9%). In boys, high VAI was positively associated with FPG ( = 0.190, = 0.009), while low CRF was negatively associated with FPG ( = -0.206, = 0.010). These associations persisted even after adjusting for CRF and VAI. However, no significant associations between VAI, CRF, and FPG were observed in girls ( > 0.05). Adolescents with high VAI and low fitness levels demonstrated poorer glycemic profiles.

CONCLUSION

Among boys, both VAI and CRF were independently associated with T2DM risk, with CRF showing a stronger association. These associations were not observed in girls. Promoting regular aerobic exercise and healthy diets may serve as essential public health promotion strategies in preventing and managing T2DM risk in adolescents.