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Int J Sports Med 2022; 43(10): 875-880
DOI: 10.1055/a-1828-8499
Physiology & Biochemistry

Validity and Reliability of Two Near-infrared Spectroscopy Devices to Measure Resting Hemoglobin in Elite Cyclists

Alexis Gandia-Soriano 
1   Department of Physiology, University of Valencia, Biophysics and Medical Physics Group (GIFIME), Valencia, Spain
,
José-Antonio Salas-Montoro 
2   Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
,
Alejandro Javaloyes
3   Department of Sport Sciences, Sports Research Centre (Department of Sport Sciences), Universidad Miguel Hernández de Elche, Spain
,
Carlos Lorente-Casaus
1   Department of Physiology, University of Valencia, Biophysics and Medical Physics Group (GIFIME), Valencia, Spain
,
Mikel Zabala 
2   Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
,
Jose Ignacio Priego-Quesada 
1   Department of Physiology, University of Valencia, Biophysics and Medical Physics Group (GIFIME), Valencia, Spain
4   Consejo Superior de Deportes (CSD), Red Española de Investigación del Rendimiento Deportivo en Ciclismo y Mujer (REDICYM), Madrid, Spain
5   Department of Physical Education and Sports, University of Valencia, Research Group in Sport Biomechanics (GIBD), Valencia, Spain
,
Manuel Mateo March 
3   Department of Sport Sciences, Sports Research Centre (Department of Sport Sciences), Universidad Miguel Hernández de Elche, Spain
6   Universidad Europea de Madrid, Sport Sciences, Spain
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Abstract

A new method to monitor internal training load from muscle oxygen saturation using near-infrared spectroscopy could be of practical application for research and training purposes. This technology has been validated in different scientific fields, including sports science, and Humon Hex and Moxy are two leading brands. However, its relationship with hemoglobin has not been studied. Forty-eight professional cyclists, 19 men and 29 women, underwent a blood test to measure hemoglobin in the early morning. Immediately afterwards, hemoglobin and muscle oxygenation were monitored at rest by Moxy and Humon Hex on their right quadriceps (where the skinfold was measured). Venous blood hemoglobin was higher than the measurement for both devices (p<0.001). Both hemoglobin (p<0.001) and muscle oxygen saturation measurements (p<0.05) were higher in Humon Hex than for Moxy, and there was a reasonable reproducibility (ICC=0.35 for hemoglobin and 0.26 for muscle oxygen saturation). Skinfold had an inverse relationship with hemoglobin measurement (r=–0.85 p<0.001 for Humon Hex and r=–0.75 p<0.001 for Moxy). These findings suggest that resting hemoglobin data provided by these devices are not coincident with those of blood sample, and skinfold has an inverse relationship with blood hemoglobin measurement.

Key words

muscle oxygen saturation - blood sample - skinfold thickness - humon hex - moxy


Publikationsverlauf

Eingereicht: 10. Januar 2022

Angenommen: 19. April 2022

Accepted Manuscript online:
19. April 2022

Artikel online veröffentlicht:
07. Juni 2022

© 2022. Thieme. All rights reserved.

Georg Thieme Verlag
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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