Jeff Beliveau1, Maxime Perreault-Briere1, David Jeker1, Thomas A Deshayes1,2, Ana Durán-Suárez3, Lindsay B Baker4, Eric D B Goulet5,6. 1. Performance, Hydration and Thermoregulation Laboratory, Faculty of Physical Activity Sciences, University of Sherbrooke, 2500 Boul. de l'Université, Sherbrooke, QC, J1K 2R1, Canada. 2. Research Centre on Aging, University of Sherbrooke, Sherbrooke, QC, Canada. 3. Universidad Autónoma de Nuevo León, Facultad de Organización Deportiva, San Nicolás de los Garza, Nuevo León, Mexico. 4. Gatorade Sports Science Institute, Barrington, IL, USA. 5. Performance, Hydration and Thermoregulation Laboratory, Faculty of Physical Activity Sciences, University of Sherbrooke, 2500 Boul. de l'Université, Sherbrooke, QC, J1K 2R1, Canada. Eric.Goulet@usherbrooke.ca. 6. Research Centre on Aging, University of Sherbrooke, Sherbrooke, QC, Canada. Eric.Goulet@usherbrooke.ca.
Abstract
PURPOSES: This study investigated the impact of permanently tattooed skin on local sweat rate, sweat sodium concentration and skin temperature and determined whether tattoos alter the relationship between local and whole-body sweat sodium concentration. METHODS: Thirteen tattooed men (27 ± 6 years) completed a 1 h (66 ± 4% of [Formula: see text]) cycling trial at 32 °C, 35% relative humidity. Sweat rate and sweat sodium concentration were measured using the whole-body washdown and local absorbent patch techniques. Patches and skin-temperature probes were applied over the right/left thighs and tattooed/non-tattooed (contralateral) regions. RESULTS: Local sweat rates did not differ (p > 0.05) between the right (1.11 ± 0.38) and left (1.21 ± 0.37) thighs and the permanently tattooed (1.93 ± 0.82) and non-tattooed (1.72 ± 0.81 mg cm-2 min-1) regions. There were no differences in local sweat sodium concentration between the right (58.2 ± 19.4) and left (55.4 ± 20.3) thighs and the permanently tattooed (73.0 ± 22.9) and non-tattooed (70.2 ± 18.9 mmol L-1) regions. Difference in local skin temperature between the right and left thighs (- 0.043) was similar to that between the permanently tattooed and non-tattooed (- 0.023 °C) regions. Prediction of whole-body sweat sodium concentration for the permanently tattooed (41.0 ± 6.7) and the non-tattooed (40.2 ± 5.3 mmol L-1) regions did not differ. CONCLUSION: Permanent tattoos do not alter local sweat rate, sweat sodium concentration or local skin temperature during moderate-intensity cycling exercise in a warm environment. Results from a patch placed over a tattooed surface correctly predicts whole-body sweat sodium concentration from an equation developed from a non-tattooed region.
PURPOSES: This study investigated the impact of permanently tattooed skin on local sweat rate, sweat sodium concentration and skin temperature and determined whether tattoos alter the relationship between local and whole-body sweat sodium concentration. METHODS: Thirteen tattooed men (27 ± 6 years) completed a 1 h (66 ± 4% of [Formula: see text]) cycling trial at 32 °C, 35% relative humidity. Sweat rate and sweat sodium concentration were measured using the whole-body washdown and local absorbent patch techniques. Patches and skin-temperature probes were applied over the right/left thighs and tattooed/non-tattooed (contralateral) regions. RESULTS: Local sweat rates did not differ (p > 0.05) between the right (1.11 ± 0.38) and left (1.21 ± 0.37) thighs and the permanently tattooed (1.93 ± 0.82) and non-tattooed (1.72 ± 0.81 mg cm-2 min-1) regions. There were no differences in local sweat sodium concentration between the right (58.2 ± 19.4) and left (55.4 ± 20.3) thighs and the permanently tattooed (73.0 ± 22.9) and non-tattooed (70.2 ± 18.9 mmol L-1) regions. Difference in local skin temperature between the right and left thighs (- 0.043) was similar to that between the permanently tattooed and non-tattooed (- 0.023 °C) regions. Prediction of whole-body sweat sodium concentration for the permanently tattooed (41.0 ± 6.7) and the non-tattooed (40.2 ± 5.3 mmol L-1) regions did not differ. CONCLUSION: Permanent tattoos do not alter local sweat rate, sweat sodium concentration or local skin temperature during moderate-intensity cycling exercise in a warm environment. Results from a patch placed over a tattooed surface correctly predicts whole-body sweat sodium concentration from an equation developed from a non-tattooed region.
Authors: Kelly A Barnes; Melissa L Anderson; John R Stofan; Kortney J Dalrymple; Adam J Reimel; Timothy J Roberts; Rebecca K Randell; Corey T Ungaro; Lindsay B Baker Journal: J Sports Sci Date: 2019-06-22 Impact factor: 3.337
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Authors: Lindsay B Baker; Ryan P Nuccio; Adam J Reimel; Shyretha D Brown; Corey T Ungaro; Peter John D De Chavez; Kelly A Barnes Journal: Physiol Rep Date: 2020-08