The purpose of this study was to verify the agreement between two criteria for flexibility on children and adolescents and between the tests results. The sample involved 59 boys and 54 girls in the age range from 8 to 16 years old, belonging to the same elementary school from the city of Londrina, Parana, Brazil. The data collection used the "Sit-and-Reach" Test (PHYSICAL BEST) and the Back Saver "Sit-and-Reach" Test (FITNESSGRAM) using a bench with specific dimensions. The results indicated a moderate agreement level between the criteria for girls (K=0.594, P<0.001) and good for boys (K=0.619, P<0,001). The passing rates of the criteria were lower in boys using the PHYSICAL BEST. The agreement of tests results were within acceptable levels (mean difference of -0.38 to 1.38 cm) and it were found a strong to very strong relationship (r=0.844 to r=0.914). The criteria classification and the obtained results in the tests were similar.
Joint range of motion; Physical fitness; "Sit-and-reach" test
