摘要
Abstract
Objective The study aims to establish physiological reference ranges of dynamic vestibulo-ocular reflex(VOR)function in military pilot cadets using the video head impulse test(vHIT)to optimize vestibular function evaluation protocols and provide an objective tool amogh selection criteria for this population.Methods A total of 276 male pilot cadets,aged 17～22 years(mean±SD,19.09±1.09),were enrolled.Vestibulo-ocular reflex parameters were assessed in two vHIT paradigms—the head impulse paradigm(HIMP)and suppression head impulse paradigm(SHIMP)—in all participants.HIMP was used to test bilateral anterior(ASC),horizontal(HSC)and posterior semicircular canals(PSC),while SHIMP was used to test only the horizontal semicircular canals.Results HIMP gain values were:0.85(0.79,0.92)for left ASCs,0.90±0.09 for right ASCs,0.92(0.88,0.96)for left HSCs,0.98(0.93,1.02)for right HSCs,0.77(0.72,0.82)for left PSCs and 0.91(0.84,0.98)for right PSCs.Gain asymmetry values were:3%(2%～4%)between right and left HSCs,3%(1%～6%)between left ASC and right PSC,and 7%(5%～11%)right ASC and left PSC.SHIMP gain values were 0.84(0.81,0.88)for the left and 0.86(0.82,0.93)for the right HSCs,with a gain asymmetry value at 2%(1%～4%)favoring the right side HSC(P<0.05).Gain values of HSCs exceeded those of vertical semicircular canals(P<0.05),with HIMP gains greater than SHIMP gains(P<0.05).Conclusion This study has established vHIT physiological reference ranges for pilot cadets for both HIMP and SHIMP paradigms,laying crucial groundwork for developing standardized vestibular assessment protocols for this population.关键词
军事飞行学员/视频头脉冲测试/前庭-眼反射Key words
military flying cadets/the video head impulse test/vestibular-ocular reflex
