An evaluation of how exercise position statement guidelines are being used in the real world in type 1 diabetes: Findings from the type 1 diabetes exercise initiative (T1DEXI)
Authors' conclusion
Free-living datasets may be used to evaluate usage and benefit of position statement guidelines. Evidence suggests OL participants who reduced meal insulin prior to exercise and did not have low glucose in the prior 24 h had less time below range.
Study context
- Population
- Adults with T1D on open-loop (OL) or automated insulin delivery (AID) therapy
- Participants
- 561 adults
- Exposure
- Exercise sessions with vs without use of exercise position statement guidelines, OL and AID therapy
- Outcome
- Glucose outcomes during exercise, post-exercise and overnight
Methodological details4-week, free-living
- 4-week
- Free-living
Main finding
As reported in the abstract
OL: reduced meal insulin before exercise, difference in time <3.9 mmol/L (P=0.02)
−2.2 %
AID: reduced meal insulin before exercise, difference in time <3.9 mmol/L, not significant (P=0.27)
−1.4 %
Observational data: associations, not effects.
Further findings
Guideline usage
- Guidelines requiring behaviour modification were rarely used; guidelines not requiring modification were often used
Time <3.9 mmol/L during exercise: no recent low glucose vs low glucose in prior 24 h
- Sessions without recent low glucose had lower time <3.9 mmol/L (P<0.001)
- −1.2 %
AID guideline: no carbohydrates before exercise when CGM flat or increasing
- Not associated with improved glycaemia
Original publication
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