Effects of Music on Table Tennis Stroke Performance Among Mentally Fatigued University Players

Before and after the intervention, stroke performance will be measured to see the difference. the stroke performance will be calculate based on formula: PI=Average speed × ball accuracy， the higher scores，the better stroke performance will be.

Before and after the intervention, ball speed will be measured to see the differences. the instrument of ball speed will be High speed camera, then input the videos into software Kinovea for measuring the fast speed

Before and after the intervention, ball accuracy will be measured to see the differences. the instrument of ball speed will be target position, for scoring 0-2 scores.

Emotional state will be measured by Emotion Report Forms subjectively. This form consists of nine items, which are: Amusement, Anger, Anxiety, Contentment, Disgust, Fear, Happiness, Sadness, and Serenity, rated on a 9-point Likert scale. Participants report that higher scores represent a stronger current emotional state. A higher score for positive emotion items indicate a higher level of positive emotion was induced. The emotional state will be measured in baseline(before inducing mental fatigue); before and after the music intervention to observe any differences.

Scope of attention will be measured by Global-local Processing Task, total 8 sets of stimulation. In each stimulation, participants will be instructed to select one figure (base on global configuration aspect or the local elements),which is more similar compare the the Standard figure. The more selection based on the global configuration by participants, means the more breadth of attention. Scope of attention will be measured in baseline(before inducing mental fatigue); before and after the music intervention to observe any differences.

Thought-action repertoire will be measured by Twenty Statement Test. Participants will be encouraged to fill the twenty blanks with:"i would like to " as many as possible, the more blanks filled by participants, the more score will be reported. the higher scores mean the more breadth of thought-action repertoire. Thought-action repertoire will be measured in baseline(before inducing mental fatigue); before and after the music intervention to observe any differences.