I think we will not agree on this but there are a number of research papers here are two examples.
Impact of Coach's Swearing on Team Dynamics and Performance" (2012) by Langevin & Parent:
- This paper specifically investigates the effects of swearing by coaches on team dynamics in sports. The findings suggest that while some athletes might view swearing as a sign of passion, the majority see it as detrimental to team cohesion and trust. The study concludes that swearing generally has a negative impact on team performance and should be avoided
The Effects of Verbal Aggression in Sports: Perceptions and Outcomes" (2008) by Mazer, Barnes, & Greer:
- This research explores athletes' perceptions of verbal aggression, including swearing, by their coaches. The study found that athletes often perceive such behavior as disrespectful and demotivating, which can harm their relationship with the coach and reduce their commitment to the team.