This paper is to detect the characteristics and the correlations between serum leptin and body component,and to examine acute effects of resistance training on serum leptin in male wrestlers.Thirty eight young men(12 for professional wrestler group,14 for sports lover group,and 12 for sports non-lover group) participated in testing and analyzing serum leptin and body component.A comparative research was performed about the changes of serum leptin concentration before and after 30 minutes of resistance training. It was found that the serum lep...