Reliability and validity of the MX3 portable sweat sodium analyser during exercise in warm conditions.
Harry A BrownBradley ClarkJulien D PeriardPublished in: European journal of applied physiology (2024)
The MX3 hydration testing system demonstrated very good single-trial reliability, moderate agreement and a very good CV relative to the Horiba LAQUAtwin-Na-11. To further validate its performance, the MX3 hydration testing system should be compared with analytical techniques known for superior reliability and validity.