The purpose of the study was to propose a correction chart for the prediction of the maximal speed aerobic (MAS) in the Course Navette of 20metre test (CN-20m) in both sexes.

A total of 77 subjects (46 men and 31 women), physical education students, participated voluntarily. They were evaluated on 3 occasions, the first of which was an anthropometric assessment in the laboratory. On the following two occasions they were randomly assessed in the field using the CN-20m test and the MAS-EVAL (T-MAS) test. The differences and relationships between the speeds and other quantitative characteristics of both tests were analysed by applying the Student t test for related samples, and the Pearson correlation coefficient. A linear regression analysis was performed to prepare the correction chart for prediction of the MAS.

The results showed that the speeds reached in the T-MAS (14.0±1.4km/h in men and 11.6±1.0km/h in women) were significantly higher than those obtained in the CN-20 m (12.0±0,8km/h in men and 10.3±0,6km/h in women) (Pℜ.0001). There was a high correlation between the speeds for the males (r=0,87) and moderate to high for the women (r=0,77). The linear regression equation to predict the MAS starting from the speed reached in the CN-20m was (1.468·Vmax)–3.597 in men, and (1.2·Vmax)–0,7 in women.

Men and women reached significantly higher speeds in the T-MAS in comparison with the CN-20 m test.