Psychophysiological Acute Effects of Functional Neurology Intervention on Vestibulo-Ocular Reflex Dysfunction.

Abstract

Objectives: The present study aimed to analyze the psychophysiological and neuromuscular reflex modifications following a single functional neurology intervention in individuals presenting vestibulo-ocular reflex (VOR) cancellation dysfunction. Methods: A total of 66 healthy participants, comprising an experimental group (n = 48; 22 females, 26 males; mean age 28.1 ± 7.8 years) and a control group (n = 18; 9 females, 9 males; mean age 28.6 ± 7.0 years), underwent comprehensive assessments at four distinct measurement moments: baseline, post-indicator muscle failure pre-intervention, immediately post-functional neurology intervention, and post-intervention indicator muscle failure, assessing neuromuscular (handgrip strength) and psychophysiological parameters, including blood oxygen saturation, heart rate, cortical arousal (critical flicker fusion threshold, CFFT), and pain perception (pressure pain threshold, PPT). The functional neurology treatment was tailored based on the ^®NeuroReEvolution protocol, emphasizing individualized proprioceptive recalibration, trigger point desensitization, and holistic neuroreflex modulation. Results: Statistical analyses indicated significant improvements within the experimental group following intervention. Specifically, tolerance to VOR cancellation stimuli significantly increased from a baseline of 1.0 ± 0.0 to 129.0 ± 36.7 post-intervention (p < 0.001, η² = 0.926), whereas the control group demonstrated no meaningful change. Furthermore, significant enhancements were noted in pressure pain threshold (27.49 ± 0.67 to 35.69 ± 0.60 kgf; p = 0.029), handgrip strength (20.41 ± 0.72 N to 26.56 ± 0.52 N; p = 0.012), and critical flicker fusion threshold (32.24 ± 0.45 Hz to 38.32 ± 0.60 Hz; p = 0.003). Conclusions: The results of this study demonstrate that a single functional neurology intervention significantly improved psychophysiological responses and neuromuscular reflex performance in participants with vestibulo-ocular reflex (VOR) cancellation dysfunction. Specifically, the intervention led to marked enhancements in pain tolerance, cortical arousal, and handgrip strength, and notably, an increased tolerance to VOR cancellation stimuli, indicating improved vestibular control. Cardiovascular parameters remained stable, highlighting the safety of the intervention. These findings support functional neurology as an effective therapeutic approach to address VOR-related dysfunctions by promoting neurophysiological resilience and motor function optimization.