smjournalСпортивная медицина: наука и практикаSports medicine: research and practice2223-25242587-9014NEICON10.47529/2223-2524.2026.1.7smjournal-760Research ArticleФИЗИОЛОГИЯ И БИОХИМИЯ СПОРТАSPORTS PHYSIOLOGY AND BIOCHEMISTRYОценка точности измерения лактата в крови спортсменов с использованием трех портативных анализаторовAssessment of blood lactate measurement accuracy in athletes using three portable analyzershttps://orcid.org/0000-0002-5945-0722ДикунецМ. А.DikunetsM. A.

Дикунец Марина Александровна, к.х.н., ведущий научный сотрудник лаборатории биохимии

105005, Москва, Елизаветинский переулок, д. 10, стр. 1

Marina A. Dikunets, Cand. Sci. (Chem.), Leading Researcher, Biochemistry Laboratory

10, bldg. 1 Elizavetinsky Lane, Moscow, 105005

dikunets.m.a@vniifk.ruhttps://orcid.org/0000-0002-1064-3283ДудкоГ. А.DudkoG. A.

Дудко Григорий Алексеевич, старший научный сотрудник лаборатории биохимии

105005, Москва, Елизаветинский переулок, д. 10, стр. 1

Grigory A. Dudko, Senior Researcher, Biochemistry Laboratory

10, bldg. 1 Elizavetinsky Lane, Moscow, 105005

dudko.g.a@vniifk.ruhttps://orcid.org/0000-0001-7814-8409АрхипкинА. А.ArkhipkinA. A.

Архипкин Александр Алексеевич, к.б.н., заведующий клинико-диагностической лабораторией, врач КЛД

1050662, Москва, ул. Садовая-Черногрязская, д. 16–18

Alexander A. Arkhipkin, Cand. Sci. (Bio.), Head of Clinical Diagnostic Laboratory

16–18, Sadovaya-Chernogryazskaya, Moscow, 1050662

arkhipkin@efis.ruhttps://orcid.org/0000-0001-9423-8092КрючковА. С.KryuchkovA. S.

Крючков Андрей Сергеевич, к.п.н., начальник национального центра спорта

105005, Москва, Елизаветинский переулок, д. 10, стр. 1

Andrey S. Kryuchkov, Cand. Sci. (Pedagogy), Head of National Sports Center

10, bldg. 1 Elizavetinsky Lane, Moscow, 105005

kriuchkov.a.s@vniifk.ruhttps://orcid.org/0000-0002-6732-6991АбалянА. Г.AbalyanA. G.

Абалян Авак Геньевич, д.п.н., доцент, генеральный директор

105005, Москва, Елизаветинский переулок, д. 10, стр. 1

Avak G. Abalyan, Dr. Sci. (Pedagogy), Associate Professor, Director General

10, bldg. 1 Elizavetinsky Lane, Moscow, 105005

director@vniifk.ruФГБУ «Федеральный научный центр физической культуры и спорта»РоссияFederal Science Center of Physical Culture and Sport (VNIIFK)Russian FederationООО «Научный центр ЭФиС»РоссияLLC Scientific Center EFISRussian Federation2026200620261611223Copyright © Дикунец М.А., Дудко Г.А., Архипкин А.А., Крючков А.С., Абалян А.Г., 20262026Дикунец М.А., Дудко Г.А., Архипкин А.А., Крючков А.С., Абалян А.Г.Dikunets M.A., Dudko G.A., Arkhipkin A.A., Kryuchkov A.S., Abalyan A.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.smjournal.ru/jour/article/view/760Цель исследования

Цель исследования: оценить точность измерения концентрации лактата в крови тремя портативными анализаторами по сравнению со стационарным эталонным прибором.

Материалы и методы

Материалы и методы. Образцы капиллярной крови отбирались у высококвалифицированных спортсменов во время проведения этапного комплексного обследования в лабораторных условиях. Концентрация лактата в крови в состоянии покоя и после проведения теста со ступенчато-возрастающей нагрузкой на лыжном эргометре, велоэргометре или беговой дорожке определялась тремя портативными анализаторами лактата (Lactate Plus, YST и Eaglenos) и с использованием полуавтоматического фотометрического анализатора (BTS-350).

Результаты

Результаты. Пределы согласованности результатов измерения лактата анализаторами Lactate Plus, YST и Eaglenos и эталонным прибором превышали допустимый интервал, установленный на уровне ± 2,1 ммоль/л. Все портативные лактометры систематически занижали концентрации лактата на 2,0–4,0 ммоль/л относительно эталонного анализатора, что критически искажает оценку интенсивности нагрузки. Стандартные ошибки оценки измерения концентраций лактата во всем диапазоне анализаторами Lactaten Plus, YST и Eaglenos составили 0.95, 0.63 и 0.91 ммоль/л соответственно и увеличивались с ростом концентрации лактата в крови.

Заключение

Заключение. Рассматриваемые в исследовании портативные лактометры не могут быть рекомендованы для точного измерения лактата в крови спортсменов в полевых и лабораторных условиях.

Objective

Objective. To evaluate the accuracy of blood lactate concentration measurements using three portable analyzers compared to a stationary reference instrument.

Materials and methods

Materials and methods. Capillary blood samples were collected from highly qualified athletes during staged comprehensive examinations under laboratory conditions. Blood lactate concentrations at rest and following incremental exercise tests on a ski ergometer, cycle ergometer or treadmill were determined using three portable lactate analyzers (Lactate Plus, YST and Eaglenos) and a semi-automatic photometric analyzer (BTS-350).

Results

Results. The limits of agreement for lactate measurements by the Lactate Plus, YST and Eaglenos analyzers compared to the reference instrument exceeded the acceptable interval set at ±2.1 mmol/L. All portable lactometers systematically underestimated lactate concentrations by 2.0–4.0 mmol/L relative to the reference analyzer, which critically distorts the assessment of exercise intensity. Standard errors of estimate of lactate concentration measurements across the entire range were 0.95, 0.63 and 0.91 mmol/L for Lactate Plus, YST and Eaglenos, respectively, and increased with rising blood lactate concentration.

Conclusion

Conclusion. The portable lactometers examined cannot be recommended for accurate blood lactate measurement in athletes under field or laboratory conditions.

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The authors declare that there are no conflicts of interest present.