What question did this study set out to answer?

To explore the relationship between physical activity and heart rate variability (HRV) in adults with type 2 diabetes.

Relationship Between Physical Activity and Autonomic Responses in Adults with Type 2 Diabetes

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To explore the relationship between physical activity and heart rate variability (HRV) in adults with type 2 diabetes.
Cross-sectional observational study design
41 adults with type 2 diabetes classified as active or inactive
Resting HRV measurements taken under standardized conditions
Analyzed HRV indices including RMSSD, SDNN, LF, and HF
Conducted quantile regression to assess the association between physical activity and HRV.
Active participants had higher HRV indices including SDNN (p = 0.021) and RMSSD (p = 0.028)
HRV indices LF (p = 0.032) and HF (p = 0.030) were also greater in active individuals
BMI negatively correlated with mean RR (ρ = −0.339, p = 0.030)
Positive association of physical activity with LF (p = 0.015) and SDNN (p = 0.021) after adjusting for HbA1c
Habitual physical activity associated with enhanced autonomic modulation.

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Cross-sectional study shows physical activity enhances heart rate variability in type 2 diabetes, suggesting exercise interventions as beneficial.

Persiani et al. (2025) studied this question.

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Cross-sectional study shows physical activity enhances heart rate variability in type 2 diabetes, suggesting exercise interventions as beneficial.