Accuracy of FreeStyle Libre 3 During Moderate-Intensity Continuous Aerobic Exercise at Different Phases of the Menstrual Cycle in Females with Type 1 Diabetes
Authors' conclusion
The findings suggest that the accuracy of FSL3 is not affected by CONT, showing good accuracy levels in both phases of the menstrual cycle.
Study context
- Population
- Females with T1D; mean age 32.2 ± 6.1 years, mean diabetes duration 16.4 ± 8.4 years
- Participants
- 26 females
- Comparison
- FSL3 vs YSI 2500 during CONT in follicular vs luteal phase
- Outcome
- Accuracy of FSL3 vs YSI 2500 (MARD) during continuous moderate-intensity aerobic exercise
Methodological detailsprospectively registered, Cycle ergometer sessions; glucose measured every 10 min by FSL3 and YSI 2500, from 20 min before to 20 min after CONT
- Prospectively registered
- Cycle ergometer sessions; glucose measured every 10 min by FSL3 and YSI 2500, from 20 min before to 20 min after CONT
Performance
As reported in the abstract
MARD
Follicular
16.06%
Luteal
16.43
- FSL3 differed significantly from YSI in both phases; FSL3 higher
- about 16 mg/dL
Further findings
MARD pre- vs postexercise, follicular phase
- Pre-exercise
- 14.21%
- Postexercise
- 17.63%
- Exercise did not affect mean absolute relative differences (MARDs)
MARD pre- vs postexercise, luteal phase
- Pre-exercise
- 14.95%
- Postexercise
- 17.71%
Original publication
Accuracy of FreeStyle Libre 3 During Moderate-Intensity Continuous Aerobic Exercise at Different Phases of the Menstrual Cycle in Females with Type 1 Diabetes. Diabetes Technol Ther. Published 17 April 2025. doi:10.
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