Effect of exposure to high temperatures in the excretion of cadmium and lead
Related Experiment Video
Updated: Dec 22, 2025

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium
Published on: December 17, 2018
J Siquier-Coll1, I Bartolomé1, M Pérez-Quintero1
1Department of Physiology, School of Sport Sciences, University of Extremadura, Spain.
Objective:
This study aims to observe the effect on urine and sweat excretion levels of cadmium (Cd) and lead (Pb) in healthy men in a maximum incremental test until exhaustion and repeated exposure to heat.
Methods:
twenty-nine adult men divided into control group (CG; n = 14) and experimental group (EG; n = 15) performing two maximum tests until exhaustion in normothermia (22 °C) and hyperthermia (42 °C). EG experienced 9 sessions of heat exposure at high temperatures (100 °C) (HEHT). After the nine sessions, the initial tests were repeated in both groups. Urine samples were collected before and after each test. After the hyperthermia tests, sweat samples were gathered.
Results:
Urinary Cd increased after initial tests in GC and in hyperthermia in EG (p < 0.05). Urinary excretion of Pb rose after HEHT (p < 0.05). Pb in sweat was higher in EG than in CG after HEHT (p < 0.05).
Conclusion:
Heat exercise and constant exposure to heat can be a valid method to increase the excretion of toxic metals.
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