| （临沂师范学院 体育学院，山东 临沂 276005） 摘 要：采用NDI-200(海神号)神经电检诊仪，对山东师范大学健康大学生志愿者(n=63人)进行了定量负荷(PWC170)运动前后的视觉诱发电位(VEP)记录分析，观察定量负荷运动对视觉诱发电位各指标的影响。结果显示：(1)运动时间平均为(9.22±1.89) min，最大吸氧量平均为(37.52±6.30) mL•min-1•kg-1；(2)与运动前((100.89±6.63) ms)相比，P100潜伏期在运动后即刻((97.82±6.32) ms)缩短，差异存在非常显著性(P＜0.01)；与运动前((5.78±2.22) μV)相比，N75-P100峰峰值在运动后即刻((4.87±1.95) μV)下降，差异存在显著性(P＜0.05)；恢复后的VEP与运动前相比，差异不存在显著性。说明定量负荷(PWC170)运动只能使视觉诱发电位各指标发生暂时改变，并不对其产生长期的影响。 |
LI Yun-xiang，ZHU Yu-zhen
| （School of Physical Education，Linyi Normal University，Linyi 276005，China） Abstract: By using NDI-200 (Nereus) neuroelectric diagnostor, the authors recorded and analyzed visually evoked potentials (VEP) produced before and after exercising with a quantitative load done by 63 healthy on-campus vol-unteer college students at Shandong Normal University, observed the effects of exercising with a quantitative load on various indexes of visually evoked potentials, and revealed the following findings: 1) the average exercising time was (9.22±1.89) min, the average maximum oxygen intake was (37.52±6.30) mL•min-1•kg-1; 2) the latent period of P100 was shorten (to (97.82±6.32) ms) immediately after exercising as compared to the same before exercising ((100.89±6.63) ms), which showed a significant difference (P<0.01); the peak value of N75-P100 was reduced (to (4.87±1.95) μV) immediately after exercising as compared to the same before exercising ((5.78±2.22) μV), which showed a significant difference (P<0.05); there was no significant difference between the VEP after recovery and the VEP before exercising, which indicated that exercising with a quantitative load (PWC170) can only produce temporary changes to various indexes of visually evoked potentials, but has no long term effects on them. |
下载本期全文：点击下载