Does Physical Fatigue Affect Color Vision?

• Published in: Sports medicine international open Vol. 1; no. 5; pp. E155 - E159
• Main Authors: Tekavcic, Bor, Milić, Radoje Čedomir, Pompe, Manca Tekavcic
• Format: Journal Article
• Language: English
• Published: Stuttgart · New York Georg Thieme Verlag KG 01.08.2017
• Subjects: Clinical Sciences; anaerobic metabolic body conditions; color discrimination changes
• ISSN: 2367-1890; 2367-1890
• DOI: 10.1055/s-0043-115378

Abstract The purpose of this study was to establish whether physical fatigue affects color vision. Thirty healthy participants were included in the study (M:F=15:15), age 25.3±4.4 y, all professional or top amateur athletes. They were exhausted using the Wingate test (WT). Physical fatigue was determined by blood lactate level before the WT and 1, 3, 5, 7 and 10 min after. Color vision was evaluated using the Hardy-Rand-Rittler (HRR) and the Mollon-Reffin Minimalist (MRM) tests before the WT and 5, 10 and 30 min after. Five minutes after the WT 2/30 (6%) showed affected color vision in the protan axis and 25/30 (83%) in the tritan axis. Ten and 30 min after the WT all the participants showed normal color vision in both the deutan and protan axes, whereas 12/30 (40%) and 8/30 (26%), respectively, showed affected color vision in the tritan axis. A gender difference was observed in color vision deficiency and improvement, with female participants being affected more and longer. The study showed that intense physical effort affects color vision with the tritan axis being predominantly affected.