The Relationship between Coaches' Independent Support Behavior, Psychological Tenacity, and Athlete Engagement

Athlete engagement is not only a lasting, positive cognitive and emotional experience in sports, but also an important indicator to measure the positive aspect of athletes, which can effectively avoid psychological fatigue in athletes. Therefore, it is particularly important to explore the influencing factors of athletes 'investment and to explore the ways to improve athletes' investment for them to play their sports skills steadily in sports training and competition. Results: Coach autonomy support significantly positively predicts athlete engagement level; Instructor self-support significantly positively predicts mental toughness. Conclusion: From the above results, Good behavior of coaches can promote better participation in sports training and competition.