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ABSTRACT
Objective: The purpose of this study was to examine the effect of a fatigue protocol on Vestibular/Ocular Motor Screening (VOMS) performance.
Design: Within subjects, repeated measures, crossover.
Methods: Fifteen healthy, physically-active participants (22.20 ± 1.424 years) completed 2 sessions under 2 conditions. A pretest VOMS, condition protocol, and a posttest VOMSwere performed. The control condition consisted of rest, while the experimental consisted of a fatigue protocol.
Results: The primary outcome measures were VOMS performance scores and Near Point of Convergence (NPC) measurements. Statistically significant interaction effects for NPC, F(1,14) = 9.38, p = .008, and total VOMS score, F(1,14) = 10.96, p = .005 were observed. For NPC, posttest (9.12 ± 4.99 cm) was significantly different, t(14) = −2.60, p = .021, than pretest scores (7.12 ± 3.19 cm). For total VOMS score, posttest experimental scores (4.93 ± 5.12) were significantly different, t(14) = −3.06, p = .009, than pretest severity scores (1.73 ± 3.67).
Conclusions: Significant increases were found in total VOMS and NPC scores following exertional fatigue. Exertional fatigue affects symptoms associated with vestibular, and/or ocular motor system assessments. Clinicians should use the VOMS with caution immediately following activity and allow time for recovery from acute fatigue.
Conflicts of Interest and Source of Funding
None declared