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Cuerda Del Pino A, Martín-San Agustín R, Laguna Sanz AJ, Diez JL, Palanca A, Rossetti P, Gumbau-Gimenez M, Ampudia-Blasco FJ, Bondia J. Accuracy of Two Continuous Glucose Monitoring Devices During Aerobic and High-Intensity Interval Training in Individuals with Type 1 Diabetes. Diabetes Technol Ther 2024. [PMID: 38215205 DOI: 10.1089/dia.2023.0535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
BBACKGROUND This study aimed to evaluate the accuracy of Dexcom G6 (DG6) and FreeStyle Libre-2 (FSL2) during aerobic training and HIIT in individuals with type 1 diabetes (T1D). METHODS Twenty-six males (mean age 29.3 ± 6.3 years and mean duration of diabetes 14.9 ± 6.1 years) participated in this study. Interstitial glucose levels were measured using DG6 and FSL2, while plasma glucose levels were measured every 10 min using YSI 2500 as the reference for glucose measurements in this study. The measurements began 20 min before the start of exercise and continued for 20 min after exercise. Seven measurements were taken for each subject and exercise. RESULTS Both DG6 and FSL2 devices showed significant differences compared to YSI glucose data for both aerobic and HIIT exercises. Continuous glucose monitoring (CGM) devices exhibited superior performance during HIIT than aerobic training, with DG6 showing a mean absolute relative difference (MARD) of 14.03% versus 31.98%, respectively. In the comparison between the two devices, FSL2 demonstrated significantly higher effectiveness in aerobic training, yet its performance was inferior to DG6 during HIIT. According to the 40/40 criteria, both sensors performed similarly, with marks over 93% for all ranges and both exercises, and above 99% for HIIT and in the >180 mg/dL range, which is in accordance with FDA guidelines. CONCLUSIONS The findings suggest that the accuracy of DG6 and FSL2 deteriorates during and immediately after exercise, but remains acceptable for both devices during HIIT. However, accuracy is compromised with DG6 during aerobic exercise. This study is the first to compare the accuracy of two CGMs, DG6 and FSL2, during two exercise modalities, using plasma glucose YSI measurements as the gold standard for comparisons.
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Affiliation(s)
- Alba Cuerda Del Pino
- University of Valencia, 16781, Department of Physiotherapy, Valencia, None, Spain;
| | - Rodrigo Martín-San Agustín
- University of Valencia, 16781, Department of Physiotherapy, C/Gasco Oliag 5, Valencia, None, Spain, 46010;
| | - Alejandro José Laguna Sanz
- Universidad Politécnica de Valencia, Instituto de Automática e Informática Industrial, Camino de Vera s/n, Valencia, Valencia, Spain, 46022;
| | - Jose Luis Diez
- Universitat Politecnica de Valencia, Institut d'Automàtica i Informàtica Industrial, Valencia, Spain;
| | | | - Paolo Rossetti
- Hospital Universitari i Politècnic La Fe, 16273, Endocrinology and Metabolism, Avda de Fernando Abril Martorell, n.106, Valencia, Spain, 46026;
| | - Maria Gumbau-Gimenez
- University of Valencia, 16781, Department of Physiotherapy, Valencia, None, Spain;
| | - F Javier Ampudia-Blasco
- Clinic University Hospital, Diabetes Reference Unit, Endocrinology and Nutrition Dep., Avda. Blasco Ibañez, 17, Valencia, Spain, 46010
- University of Valencia, Department of Medicine, Avda. Blasco Ibánez, 15, Valencia, Spain, 4610;
| | - Jorge Bondia
- Universitat Politècnica de València, 16774, Instituto Universitario de Automática e Informática Industrial, Camino de Vera, s/n, Valencia, Spain, 46022
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, 468627, Madrid, Spain, 28029;
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