How do over ambitious parents affect the performance of their children in sports?

Times New Roman, 12-point, 1.5 or 2.0 vertical spacing,APA style, 3-4 pages.Use at least 4 academic references,that can be found online; 3 must be from high-quality journals (peer-reviewed or equivalent level versus a website for example; one textbook reference is ok. Main format : table of contents, introduction, body of paper,conclusion and reference list.