Glucose‐lowering effects of physical activity in type 1 diabetes: A causal modelling and matched‐pair analysis approach
Main finding · Glucose changeResult — go to the resultMean difference −1.9 mmol/LAuthors' conclusion
Using PA to lower high glucose levels is an effective and safe strategy, and when guided by CGM, it can become a personalised tool for type 1 diabetes education.
Study context
- Population
- Individuals with T1D in the T1DEXI and T1DEXIP cohorts, during hyperglycaemia (glucose >10 mmol/L)
- Participants
- 1,546 physical activity (PA) bouts
- Exposure
- PA bouts vs matched non-PA periods
- PAn = 1,546
- Outcome
- Change in glucose from PA onset to 20 min post-activity
- Follow-up
- 20 min post-activity
Methodological detailswithin-subject matched-pairs, weighted k-nearest neighbours matching (SMD <0.01)
- Within-subject matched-pairs
- Weighted k-nearest neighbours matching (SMD <0.01)
Main finding
Glucose change · PA onset to 20 min post-activity
Mean difference
−1.9 mmol/L
P < 0.0001
Change by group
PA
−2.2
mean · mmol/L
Non-PA
0.3
mean · mmol/L
As reported in the abstract
Observational data: associations, not effects.
Secondary outcomes
Glucose change by age, activity type or intensity
- No significant differences by age, activity type or intensity
Predictors of PA-induced glucose change
- Strongest predictors (in order): glucose rate of change, starting glucose, CV, duration and insulin on board (IOB)
Safety
- PA-induced hypoglycaemia risk very low
- <2%
Original publication
Glucose‐lowering effects of physical activity in type 1 diabetes: A causal modelling and matched‐pair analysis approach. Diabet Med. Published 8 October 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →