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. 2021 Apr 8;6(2):34. doi: 10.3390/jfmk6020034

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Comparison of (a) reaction time (ms) separated by rings (ring 3, ring 4, ring 5), (b) reaction time (ms) separated by upper and lower quadrants between baseline (BL; white), helmet + light facemask (HL; light grey), helmet + medium facemask (HM; grey), helmet + heavy (HH; black), and helmet + extra heavy (HXH; black striped) conditions. Data are presented as mean ± SD. * indicates significant difference from baseline (p < 0.05). ‡ indicates significant difference from HXH (p < 0.05). # indicates significant difference from HL (p < 0.05). † indicates significant difference from HM (p < 0.05). ¥ indicates significant difference from ring 3 (p < 0.05). $ indicated significant difference from ring 4 (p < 0.05).