Stress reduction and exercise : Dose electroencephagram (EEG) reflect such change?

近年来，一些研究人员声称，锻炼和体育锻炼对改善心理健康和减轻压力有积极作用。锻炼和心理益处之间的积极关系已经得到了很好的证实。然而，对解释这些益处的机制的了解还不是特别清楚。基于运动后积极情绪会增加和运动会导致压力减轻的假设，研究了运动后积极情绪的变化。确定能带来最大心理益处的运动强度并不是一件容易的事情。舒适的自定步速(CSEP)已被证明能在运动后产生最大的积极影响(愉悦、放松、满意)。本研究的目的是确定CSEP是在运动中和运动后激发积极情绪的最佳运动强度，并考察积极情绪与…之间的关系运动后情绪和脑电(EEG)α不对称性增加。结果一致地表明，与CSEP以上或以下的强度相比，CSEP在运动中和运动后产生更多的积极情绪，因此，CSEP可能是一种最理想的运动强度，可以在运动后产生最大的积极情绪。分别于运动前、运动后采集脑电(F3、F4、P3、P4)和情感。与运动前相比，运动后15分钟和30分钟，积极情绪增加，状态焦虑降低，而阿尔法功率无明显变化。结论：CSEP可能是一种确定运动后获得最大积极情绪的方法，但本研究不能用脑电α不对称性的变化来解释运动后积极情绪的增加。为了更好地理解运动强度、运动后情绪和反映这种情绪的心理生理指标之间的关系，有必要进行进一步的研究。较少

In the recent year, a number of researchers have claimed that exercise and physical activity have positive effects for improving mental health and reducing stress. The positive relationship between exercise and psychological benefits is well established. Knowledge of the mechanisms that explain these benefits, however, is not particularly clear. Based on the hypotheses that positive affect would increase following exercise and that exercise would lead to stress reduction, changes in positive affect following exercise were investigated. Determining an exercise intensity that will lead to the greatest psychological benefit is not an easy task. Comfortable Self-Established Pace (CSEP) has been demonstrated to elicit maximal positive affect (pleasantness, relaxation, satisfaction) following exercise. The purpose of this study was to confirm that CSEP is an optimal exercise intensity for eliciting positive affect during and following exercise, and to examine the relationship between positiv … More e affect and electroencephalogram (EEG) alpha asymmetry following exercise. Results consistently indicated that running at CSEP led to increased positive affect during and following exercise compared to intensities above or below CSEP.Therefore, this suggests that CSEP might be an optimal exercise intensity by which one can produce the greatest positive affect following exercise. EEG (F3, F4, P3, P4) and affect were collected before and following exercise. Compared with preexercise levels, increases in positive affect and decreases in state anxiety were found at 15 and 30 min postexercise, while no remarkable changes in alpha power were found postexercise. It is concluded that CSEP might be a method determining for gaining maximal positive affect following exercise, but that increases in positive affect following exercise could not be explained by changes in EEG alpha asymmetry in this study. Further investigations are necessary to better understand the relations between exercise intensity, postexercise affect, and psychophysiological measures indicative of such affect. Less