Kéringer, Patrik and Borbásné Farkas, Kornélia and Gede, Noémi and Hegyi, Péter and Rumbus, Zoltán and Varjú-Solymár, Margit and Garami, András (2020) Menthol can be safely applied to improve thermal perception during physical exercise : a meta-analysis of randomized controlled trials. SCIENTIFIC REPORTS, 10 (1). ISSN 2045-2322
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Abstract
Menthol is often used as a cold-mimicking substance to allegedly enhance performance during physical activity, however menthol-induced activation of cold-defence responses during exercise can intensify heat accumulation in the body. This meta-analysis aimed at studying the effects of menthol on thermal perception and thermophysiological homeostasis during exercise. PubMed, EMBASE, Cochrane Library, and Google Scholar databases were searched until May 2020. Menthol caused cooler thermal sensation by weighted mean difference (WMD) of - 1.65 (95% CI, - 2.96 to - 0.33) and tended to improve thermal comfort (WMD = 1.42; 95% CI, - 0.13 to 2.96) during physical exercise. However, there was no meaningful difference in sweat production (WMD = - 24.10 ml; 95% CI, - 139.59 to 91.39 ml), deep body temperature (WMD = 0.02 °C; 95% CI, - 0.11 to 0.15 °C), and heart rate (WMD = 2.67 bpm; 95% CI - 0.74 to 6.09 bpm) between the treatment groups. Menthol improved the performance time in certain subgroups, which are discussed. Our findings suggest that different factors, viz., external application, warmer environment, and higher body mass index can improve menthol's effects on endurance performance, however menthol does not compromise warmth-defence responses during exercise, thus it can be safely applied by athletes from the thermoregulation point of view.
| Item Type: | Article |
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| Additional Information: | Funding Agency and Grant Number: National Research, Development and Innovation Office [FK 124483, KFI_16-1-2017-0409, K112364]; Medical School, University of Pecs [KA-2019-27]; Higher Education Institutional Excellence Program of the Ministry of Human Capacities in Hungary [20765-3/2018/FEKUTSTRAT]; GINOP STAY ALIVE [2.3.2-15-2016-00048]; EFOP LIVE LONGER [3.6.2-16-2017-00006]; Janos Bolyai Scholarship of the Hungarian Academy of SciencesHungarian Academy of Sciences Funding text: This work was supported by the National Research, Development and Innovation Office (FK 124483 to Andras Garami; KFI_16-1-2017-0409 and K112364 to Zsolt Lohinai), the Medical School, University of Pecs (KA-2019-27 to Andras Garami), the Higher Education Institutional Excellence Program of the Ministry of Human Capacities in Hungary (20765-3/2018/FEKUTSTRAT to Peter Hegyi and Andras Garami; Therapy Research Module to Semmelweis University), GINOP STAY ALIVE (2.3.2-15-2016-00048 to Peter Hegyi), and EFOP LIVE LONGER (3.6.2-16-2017-00006 to Peter Hegyi, Zsolt Lohinai, Kasidid Ruksakiet and Gabor Varga). Andras Garami acknowledges the Janos Bolyai Scholarship of the Hungarian Academy of Sciences. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. |
| Subjects: | R Medicine / orvostudomány > R1 Medicine (General) / orvostudomány általában |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 24 Sep 2020 13:21 |
| Last Modified: | 24 Sep 2020 13:21 |
| URI: | http://real.mtak.hu/id/eprint/114456 |
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