Objective

To identify which factors adolescents perceive as preventing them from undertaking physical activity in their spare time.

Methods

A cross sectional descriptive and quantitative methodology was followed. The sample consisted of a total of 324 students (54.3 % girls and 45.7 % boys) enrolled in Mandatory Secondary Education with a mean age of 14.01±1.35 years old. The data was selected using the Short Scale of Perceived Barriers for the Physical Activity in Adolescents. The analyzed variables include self-perception of motor competence, motivation or interest, social support, and incompatibility with other activities. These barriers are analyzed in relation to gender and grade level.

Results

There are significant differences between self-perception of motor competence and motivation in relation to gender. Furthermore, there are significant differences in all variables except in the one of incompatibility with other activities in relation to grade level.

Conclusion

Girls have a worse self-perception of motor competence and motivation to practice physical activity. However, the oldest students (15-16 years old) present better self-perception of motor competence, motivation and social support.