Pregledni rad
https://doi.org/10.69589/hsv.41.1.12
Validation of portable blood lactate analyzers versus laboratory reference methods in sport and exercise physiology: A systematic review
Sara Beram
; Sveučilište u Zagrebu Kineziološki fakultet, Zagreb, Hrvatska
Damir Stručić
; Hrvatsko vojno učilište „Dr. Franjo Tuđman“, Zagreb, Hrvatska
Sažetak
Lactate is a central component of energy metabolism across a wide range of exercise intensities. The understanding of lactate has evolved from its traditional classification as a metabolic by-product of anaerobic metabolism to its recognition as a key intermediary in cellular energy production. In sport and exercise physiology, blood lactate concentration is widely used to monitor exercise intensity and guide useful training methods. The aim of this systematic review was to evaluate the validity, accuracy, reliability, and precision of portable blood lactate analyzers used in sport and exercise physiology. A systematic literature search was conducted using different scientific databases to identify studies comparing portable blood lactate analyzers with laboratory-based reference analyzers in laboratory and field testing relevant to sport performance. Nine studies met the inclusion criteria and were included in this review. Across studies, portable lactate analyzers demonstrated acceptable analytical precision but variable agreement with reference analyzers. Measurement of bias and limits of agreement between portable and laboratory devices commonly reached ±1–2 mmol·L⁻¹ blood lactate, with larger discrepancies observed at higher lactate concentrations after 8-10 mmol·L⁻¹. Blood sampling methodology, including the site of sample collection (earlobe or fingertip), was identified as a major contributor to measurement variability, in some cases exceeding device-related errors. In conclusion, portable blood lactate analyzers can be effectively used in sport performance when their methodological limitations are acknowledged. Standardized sampling procedures and cautious interpretation of absolute lactate values are essential, particularly at high exercise intensities.
Ključne riječi
Hrčak ID:
348766
URI
Datum izdavanja:
30.6.2026.
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