Gender differences in nonlinear motor performance following concussion

摘要: Abstract Purpose To quantify differences in nonlinear aspects of performance on a seated visual-motor tracking task between clinically asymptomatic males and females with without self-reported mild traumatic brain injury (mTBI) history. Methods Seventy-three individuals concussion history (age: 21.40 ± 2.25 years) 75 21.50 ± 2.00 completed the task. Participants pressed an index finger against force sensor, tracing line across computer screen (visual-motor tracking). The produced signal's root-mean-square error ( RMSE ), sample entropy (SampEn, measure regularity), average power (AvP) 0 12 Hz were calculated. Results Males or 1 had greater (worse performance) than p  0.0001) p  = 0.052). Additionally, 2+ concussions exhibited lower SampEn no  = 0.001)  = 0.026). Finally, 8–12 Hz AvP  = 0.031). Few observed male participants. Conclusion Females multiple tracking-task output structure as compared to those reported their counterparts. Lower 8 12 Hz indicated persistent impairment visual processing feed-forward predictive motor control systems.