| Objective: Through his years of experience and a large number of investigations of national excellent fitness athletes body composition tests, study and analysis on the athletes’ body composition, features of fitness athletes body composition, and analyze the influence of body composition competition performance, the indicators of its. Can be targeted to scientific training and fitness athletes body composition monitor effectively, for fitness athletes more scientific training and training effect evaluation provides the theoretical basis, the players, the game in the gym and get better grades, can also be used for selecting excellent fitness athletes provides detailed data and theoretical support.Methods: in this paper, using the literature material method, the anthropometric method, interview method, mathematical statistics method and other methods, research and analysis on the athletes’ body composition, features of fitness athletes body composition, the indicators and analysis of body composition on its competition results.Results:1fitness athletes 9-15 and 8 compared with lean body weight percentage and muscle muscle percentage and competition results in a highly positive correlation of R values were r=0.862 and r=0.831, T value test showed significant difference(P < 0.05). Show fitness athletes better lean body mass and muscle percentage higher percentage.2 fitness athletes 9-15 and 8 compared to body fat percentage and protein percentage were highly correlated with Competition Results r values were r=0.981 and r=0.973, T value of the test has a very significant difference(P < 0.01) shows fitness athletes better lower body fat percentage, protein percentage is higher.3 fitness athletes 9-15 and 8 compared with the percentage of total body water and although competition results are positively correlated but no significant difference(P > 0.05); intracellular fluid, extracellular fluid and minerals and the achievement is negatively related to no significant difference(P > 0.05), but this does not mean that exercise strengthen training and control in this area.Conclusion: 1. body fat, lean body mass, muscle protein, body composition index is the main achievement competition affect the fitness of athletes.2 fitness athletes better lean body weight and percentage of body water is higher, the lower the percentage of body fat, muscle weight accounted for the percentage of body weight increases, the more the better amount of protein in the muscle of athletes.Body fat content of 3 fitness athletes than in the general population is low, the protein content higher than normal, the body of minerals and intracellular and extracellular fluid content was not what difference with ordinary people. |