Efeitos psicofisiológicos da utilização da máscara de algodão em um teste progressivo máximo

Since the appearance of the SARS-CoV2 virus and its consequent worldwide spread, several measures have been taken to reduce contamination, including the use of masks. The aim of this study was to evaluate the psychophysiological effects of using the Tricoline cotton mask while performing a maximum progressive test. A study with experimental cross-design was developed with a sample composed of 13 men, aged 33 ± 5.8 years. The Leger back-and-forth test, the Borg Effort Subjective Perception Scale, was applied. Heart rate was recorded using a Garmin® cardiofrequency meter. The heart rate deflection point (FCdef) and its associated speed (Vdef) was calculated using the Dmax method. For data analysis, the IBM SPSS Statistics 20 software was used. To observe the agreement of the tests with and without the use of the protection mask, Bland, Altman graphics were generated. p<0.05 was considered significant. The differences in the tests for variables “FCdef” and “Vdef” showed an average value of -0.76 bpm and 0.10 Km / h respectively, indicating a virtually null disagreement. For the variables t teste and PSE the differences were 20s and -0.41 respectively, indicating a probable disagreement of the tests. The results demonstrate that the use of the protective mask in the practice of physical exercise does not seem to affect the physiological mechanisms, however, by directly influencing the mechanisms of regulation of the subjective perception of effort, it can prematurely anticipate the duration of a maximum or submaximal effort.