Home resistance training and leisure activity both improve blood sugar and boost helpful GLP-1 hormone in children with type 1 diabetes

• Both structured home resistance training and self-chosen leisure activities effectively reduce fasting blood glucose in children with type 1 diabetes
• Exercise increases GLP-1 secretion and decreases miRNA-192 expression, potentially supporting pancreatic β-cell health
• Home-based resistance training produces superior cardiovascular fitness gains compared to leisure-time activities

This research applies to children with type 1 diabetes (average age 12-13 years) who have been diagnosed for at least 2 years and are not currently engaged in regular exercise. The findings may be particularly relevant for families looking for practical, home-based or recreational physical activity options.

The study was quite small with only 20 children total, which limits how confidently we can apply these findings. The 8-week timeframe was relatively short, and longer studies are needed to see if these benefits persist and lead to meaningful improvements in long-term diabetes control (HbA1c). The leisure activity group had less structured exercise, so intensity and type varied between participants. Both groups showed improvements, but we don't know how they compare to children who don't exercise at all.

• Very small sample size (10 participants per group) limits statistical power and generalizability
• Short 8-week duration may be insufficient to detect HbA1c changes
• No true control group (no exercise comparison)
• Exercise intensity in leisure group was not controlled or monitored