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Pediatric Endocrinology Diabetes and Metabolism
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4/2021
vol. 27
 
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abstract:
Original paper

Assessment of changes in blood lactate levels in children and adolescents with type 1 diabetes during a football tournament (GoalDiab Study)

Justyna Flotyńska
1
,
Andrzej Gawrecki
1
,
Aleksandra Araszkiewicz
1
,
Mikołaj Parchimowicz
1
,
Marcin Michalski
1
,
Olga Różańska
1
,
Marta Stopczyńska-Szymecka
1
,
Mikołaj Kamiński
1
,
Aleksandra Cieluch
1
,
Grzegorz Biegański
2
,
Arkadiusz Michalak
3, 4
,
Katarzyna Domaszewska
5
,
Dorota Zozulińska-Ziółkiewicz
1

  1. Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poland
  2. Department of Infectious Diseases and Paediatric Neurology, Poznan University of Medical Sciences, Poland
  3. Department of Paediatrics, Diabetology and Endocrinology, and Nephrology, Medical University of Lodz
  4. Department of Biostatistics and Translational Medicine, Medical University of Lodz
  5. Department of Physiology and Biochemistry, Poznan University of Physical Education
Pediatr Endocrinol Diabetes Metab 2021; 27 (4): 237–244
DOI: https://doi.org/10.5114/pedm.2021.109272
Online publish date: 2021/12/30
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Introduction
Monitoring physical activity is a very important issue, especially in type 1 diabetes. One of the parameters assessing the intensity of exercise is the concentration of lactate in the blood.

Aim of the study
We assessed the intensity of PE and changes in lactate levels in children and adolescents with type 1 diabetes (T1D) during a football tournament.

Material and methods
We enrolled 141 participants, the results of 70 of whom were analyzed, playing in two age categories: 10–13 and 14–17 years. Lactate levels were measured in the capillary blood before and after matches. Blood lactate of 4 mmol/l (Onset Blood Lactate Accumulation OBLA) was used as parameter indicating the prevalence of anaerobic metabolic changes.

Results
The median lactate level was 1.8 mmol/l before and 4.4 mmol/l after matches (p < 0.001). The increase in lactate levels was higher in the older age category (4.3 vs. 1.8, p = 0.001) and was independent on gender (3.2 vs. 2.1, p = 0.597), personal insulin pump vs insulin pen use (3.0 vs. 1.5, p = 0.145) or training in a sports club (1.4 vs. 3.0, p = 0.084). A positive correlation was noted between increased lactate levels and age (Rs = 0.253, p = 0.034). 61% of the participants exceeded lactate levels ≥ 4 mmol/l. In univariate logistic regression analysis age was a significantly associated with lactate level ≥ 4 mmol/l [OR = 1.45 (1.08–1.95)] independent of HbA1c, gender, treatment method and training in a sports club.

Conclusions
PE intensity levels during football matches were found to be mixed aerobic-anaerobic. Increases in lactate levels were greater in the older subjects independently on the assessed factors.

keywords:

physical activity, lactate, type 1 diabetes, physical exercise intensity

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