The effect of exercise on leptin, insulin, cortisol and lipid profiles in obese children

Area of Science:

• Pediatric Endocrinology
• Exercise Physiology
• Cardiovascular Risk Management

Background:

• Childhood obesity is a growing concern with significant health implications.
• Obesity is associated with metabolic dysregulation and increased cardiovascular risk.
• Hormonal and lipid profiles are often adversely affected in obese children.

Purpose of the Study:

• To investigate the impact of a structured aerobic exercise program on key metabolic and hormonal markers in obese boys.
• To compare the effects of exercise versus no exercise on body mass index (BMI), leptin, insulin, cortisol, and lipid profiles.
• To assess the potential of exercise in mitigating cardiovascular risk factors in pediatric obesity.

Main Methods:

• Prospective, randomized controlled trial involving 40 obese boys (aged 10-12 years, BMI ≥ 30 kg/m²).
• Participants were randomized into an exercise group (12-week aerobic program) and a non-exercise control group.
• Measurements included BMI, low-density lipoprotein (LDL), high-density lipoprotein (HDL), cortisol, leptin, and insulin levels before and after the intervention.

Main Results:

• The exercise group showed significant reductions in BMI, LDL, cortisol, leptin, and insulin levels post-intervention.
• High-density lipoprotein (HDL) levels significantly increased in the exercise group.
• The control group exhibited significant increases in LDL, cortisol, and leptin, with a decrease in HDL.
• Insulin and leptin levels were significantly lower in the exercise group compared to the control group.

Conclusions:

• Regular aerobic exercise is effective in improving body weight and metabolic profiles in obese children.
• Exercise plays a crucial role in regulating hormones like leptin and insulin, and improving lipid profiles.
• Aerobic exercise can be a valuable strategy for protecting obese children against cardiovascular risk factors.