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Sports 2016, 4(4), 46; doi:10.3390/sports4040046

Airflow-Restricting Mask Reduces Acute Performance in Resistance Exercise

1
Group of Studies and Research in Exercise Physiology (GEPEFEX), Federal University of São Paulo, São Paulo 11.015-020, Brazil
2
Institute of Physical Activity Sciences and Sport, Cruzeiro do Sul University, São Paulo 03.342-000, Brazil
3
Postgraduate Program in Human Movement Sciences and Rehabilitation, Group of Studies and Research in Exercise Physiology (GEPEFEX), Federal University of São Paulo, São Paulo 11.015-020, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Alessandro Pezzoli
Received: 3 August 2016 / Revised: 12 September 2016 / Accepted: 18 September 2016 / Published: 23 September 2016
(This article belongs to the Special Issue Environment and Sport Performance)
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Abstract

Background: The aim of this study was to compare the number of repetitions to volitional failure, the blood lactate concentration, and the perceived exertion to resistance training with and without an airflow-restricting mask. Methods: Eight participants participated in a randomized, counterbalanced, crossover study. Participants were assigned to an airflow-restricting mask group (MASK) or a control group (CONT) and completed five sets of chest presses and parallel squats until failure at 75% one-repetition-maximum test (1RM) with 60 s of rest between sets. Ratings of perceived exertion (RPEs), blood lactate concentrations (Lac), and total repetitions were taken after the training session. Results: MASK total repetitions were lower than those of the CONT, and (Lac) and MASK RPEs were higher than those of the CONT in both exercises. Conclusions: We conclude that an airflow-restricting mask in combination with resistance training increase perceptions of exertion and decrease muscular performance and lactate concentrations when compared to resistance training without this accessory. This evidence shows that the airflow-restricting mask may change the central nervous system and stop the exercise beforehand to prevent some biological damage. View Full-Text
Keywords: lactate; strength training; central fatigue; lactate paradox lactate; strength training; central fatigue; lactate paradox
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MDPI and ACS Style

Motoyama, Y.L.; Joel, G.B.; Pereira, P.E.A.; Esteves, G.J.; Azevedo, P.H.S.M. Airflow-Restricting Mask Reduces Acute Performance in Resistance Exercise. Sports 2016, 4, 46.

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