Background
To compare the adding effect of virtual reality exercises (VRE) versus high volume resistance training (HVRT) to low calorie diet (LCD) on blood biomarkers and body fat in obese adult females.
Methods
Sixty sedentary obese females (aged 40–60 years; BMI 30–40 kg/m2) were randomly assigned to three groups: VRE plus LCD, HVRT and LCD, or LCD only. Both exercise interventions were conducted three times weekly for 12 weeks. The outcome measures were lipid profile, glycated hemoglobin (Hb A1C), C-reactive protein (CRP), percentage of body fat (PBF), trunk fat (TF), waist hip ratio (WHR), skinfold thickness (SFT), quality of life (QOL), and fatigue severity (FS). All measurements were taken at baseline and after twelve weeks. Data were analyzed using mixed-model MANOVA with Bonferroni post-hoc tests (α < 0.05).
Results
Significant multivariate effects were found for group, time, and group-time interaction (p < 0.001). Both VRE and HVRT groups demonstrated significant reductions in total cholesterol, triglycerides, LDL, HbA1c, CRP, PBF, TF, WHR, and skinfold thickness, with increased HDL and improved QOL and FS (p < 0.01). No significant differences were observed between VRE and HVRT groups (p > 0.05), whereas both were superior to LCD alone across all outcomes (p < 0.05).
Conclusion
Combining VRE or HVRT with a LCD resulted in comparable improvements on lipid profile, HbA1c, CRP, PBF, TF, WHR, SFT, QOL, and FS, exceeding the benefits of dietary intervention alone. Virtual reality exercise may offer an engaging alternative to traditional resistance training for obesity management in women.
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