A study by academics at the University of Leeds and Northumbria University found coaches who were more focused on their own high standards and less interested in the opinions of others were significantly better at controlling feelings of anger than those who were very focused on others' opinions of their performance.
Dr Andrew Hill, lecturer in sports and exercise science in the University of Leeds' Faculty of Biological Sciences, who led the study, said: "Outbursts of anger from coaches are a familiar feature of many sports at many different levels-from Alan Pardew's headbutt to a recent attack by a coach on a linesman in an Under-14 rugby match. This isn't good for anybody. You want a calm and analytic mind on the sidelines, but we found that some features of personality may make this more difficult."
The researchers surveyed 238 coaches across a wide range of sports including football, rugby, hockey, netball, swimming and horse riding. Most of the coaches were involved in amateur sport and their average age was 24.
The results show that those with "high personal standards perfectionism" - meaning that they set their own high standards and focused less on other people's evaluations - were relatively good at regulating their emotions. They showed more ability to reappraise negative feelings and see situations in a more constructive manner.
Coaches who placed a higher emphasis on perceived pressures from others were more prone to a fear of making mistakes. They had less control over their emotions and were more at risk of losing control of angry feelings.
Dr Hill said: "Those who believe others expect them to be perfect appear to have more difficulty controlling their emotions. As a consequence, they will be more prone to emotional outbursts."
Co-author Dr Paul Davis, Senior Lecturer in Sport at Northumbria University, said: "The pursuit of perfect performance drives some coaches, but the dynamic nature of sport sets them up to experience intense emotions when their standards are not met.
"Moreover, emotions are contagious; a coach who is unable to regulate their own anger may actually undermine an athlete's performance. In a worst case scenario, a coach who has limited capacity to regulate their emotions is putting themselves in a position where they may end up doing the one thing they really want to avoid."
The findings are published online in 'Perfectionism and Emotion Regulation in Coaches: A test of the 2 X 2 model of dispositional perfectionism' in the journal 'Motivation and Emotion'.
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