Brainstem Auditory And Visual Evoked Potential In The Functional Evaluation Of Athletes Of The Longitudinal Study

Purpose:Discusses 6-8 week inferior maximal dose of the oxygen movement (THR=85%HRmax) to induce Visual Evoked Potential and Brainstem Auditory Evoked Potentials the influence,in order to appraisesinduces the electric potential technology in the athlete function appraisal application value.Methods:After uses the Shanghai sea god medical service electron instrumentplant production NDI-200 the meterrecord and the analysis peaceful condition,the quota load movementinstantly the body temperature restores after the movement to themovement in front of the level induces the trying vision and the brainstem sense of hearing the electric potential.The electrode for the silver chloride disc electrode, the physiological load of exercise implementation uses Monark which Swedenproduces the 839E power bicycle and the heart rate testing tool. The Visual Evoked Potential of the test: Let adapt trying in the darkroom 5 minutes,eliminates the tense psychology.The selection places the electrode the correct spot,places the electrodespot with the soapy water clean the skin,and with 75% ethyl alcohollint ball degreasing, causes the resistance value to be lower than 5kΩ. Leads the association combination way selection forehead double poleto lead the association: Will record the electrode to set to onoccipital bone thick prosperous approximately 1.5cm place,thereference electrode sets middle the volume,the earth electrode setsto the top of the head.The test under the darkroom,the natural pupilcarries on,stimulates the way to use the black and white graph turnover check (2.5×2.5cm), stimulates the screen size is 12 inches monitors. Is received trying to sit in front of the screen 75cm place,in addition will lean the eye to cover carries on the simpleeye test,the screen central fixed point with will examine the eye in the identical horizontal altitude,test period the trying attention high degree of concentration,is examined the eye not to be able the short period of time.Stimulates the frequency is 2Hz,brightness is 90cdp,the contrastgradient is 80%,the filter scope is 1Hz～100Hz,the sensitivity is 10μV,superimposes 100 time.The Brainstem Auditory Evoked Potentials of the test:Let adapt trying in the darkroom 5minutes, eliminates the tense psychology.The selection places theelectrode the correct spot, places the electrode spot with the soapywater clean the skin,and uses 75% ethyl alcohol lint ball degreasing.Leads the association combination way selection forehead double poleto lead the association:Will record the electrode to set to a crown,the reference electrode sets to receiving measured the ear mastoidprocess place,the earth electrode will set to the forehead place. acoustic stimulus the single track stimulates the left ear,the shortsparse sound "click" will spread after the earphone is measured theear,the intensity of stimulation will be 102dB, will stimulate thefrequency is 30Hz,to will cock the ears by the white noise concealed.The oscillogram recording filter scope is 100～3000Hz,thesensitivity is 5μV, superimposes 2,000 time.BRUCE has the oxygen movement training test process:①Let the trying understanding this experiment goal,the significance as well as the concrete implementation process.②In front of the test movementis induced the trying vision the electric potential,the brain stemsense of hearing to induce the electric potential,the heart rate,the body temperature and the age.③In receives in front of the tryingchest to wear the heart rate table.④And so on is dropped thetrying heart rate to the normal water usually carries on the treadmillmovement, the power vehicle rotation control in each minute 60.⑤When the trying heart rate was achieved myself maximum heart rate when 85% stops the movement.⑥After the movement instantly tests the trying vision is induced the electric potential and the brain stemsense of hearing induces the electric potential.⑦When is restored the trying body temperature to is peaceful tests its vision to inducethe electric potential and the brain stem sense of hearing induces theelectric potential.Results: Inferior maximal dose of the oxygen movement training after 6-8 week-longorder:①The Visual Evoked Potential of N75 and P100 of the Peak Latencies all assumes significance the drop, this kind of droptendency and the training number of times assumes significance negative correlation.②The Visual Evoked Potential of N145-P100 of the Inter Peak Latencies and the movement number of times assumes significance the correlation.③The Visual Evoked Potential of P100-N75 of the Inter Peak Value to assume significance the drop, with movement of week significance negative correlation.④The Brainstem Auditory Evoked Potentials ofⅢwave of the Peak Latencies to assume significance the drop.⑤The Brainstem Auditory Evoked Potentials ofⅢ-Ⅰwave of the Inter Peak Value becomes significance reducing.Under the different state of motion obtains the change as follows:①After tests the group movement the instantly Visual Evoked Potential of targets parameter and the movement assumes significance the difference.②After the movement instantly the Brainstem Auditory Evoked Potentials ofⅤwave of the Peak Latencies and the movement assumes significance the difference.③After the movement instantly the Brainstem Auditory Evoked Potentials of III - I wave of the Inter Peak Value and the movement assumes significance the difference.Conclusion: 6-8 week inferior maximal dose of the oxygen movement causes the Visual Evoked Potential of N75 and P100 of the Peak Latencies significance reduces, causes the Visual Evoked Potential of N145-N100 of the Inter Peak Latencies has significance lengthens, causes the Visual Evoked Potential of P100-N75 of the Inter Peak Value to assume significance the drop, causes the Brainstem Auditory Evoked Potentials ofⅢwave of the Peak Latencies significance to reduce,causes the Brainstem Auditory Evoked Potentials ofⅢ-Ⅰwave of the Inter Peak Value to become significance the drop. Around inferior maximal dose of the oxygen movement, after tests the group movement the instantly Visual Evoked Potential in front of the electricpotential incubation period various targets parameter and the movementhas significance the difference, after the experimental group movement instantly the Brainstem Auditory Evoked Potentials of Ⅴwave in front of the incubation period and the movement assumes significance the difference, after the experimental group movement instantly of Brainstem Auditory Evoked PotentialsⅢ-Ⅰwave of the Inter Peak Value and the movement assumes significance the difference.