Performance can be enhanced by arousal, but only to a certain degree. Performance declines when arousal levels rise unhealthy levels.
According to the "inverted U" idea, there is a threshold point at which arousal levels stop improving athletic performance. Arousal levels above the threshold have a negative impact on performance. Performance quality is worse when arousal levels are low.
The impact of elevated mood and arousal on athletes' performance at their maximum strength. While studies on the reversal theory suggests that strong positive arousal may actually improve performance, optimal arousal models maintain that excessive arousal inhibits sports performance.
In general, arousal has two kinds of effects on performance. First, it increases muscle tension and affects co-ordination. Too much tension is detrimental to performance. Second, arousal affects attention.
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