Lifestyle and Physical Activity in Spanish Children and Teenagers: The Impact of Psychosocial and Biological Factors

The research focused on the relationships between frequency of physical activity (FPA), general self‐efficacy perception and motor self‐efficacy perception (GSP and MSP), and cardiorespiratory adapting capacity (CAC). Participants in the study were 2,809 Spaniards between the ages of 9 and 17 (12.6 ± 2.8). Scales to assess GSP, MSP, FPA, and Ruffier's test to measure CAC was used. Results show high percentages of inactive population, especially in older girls; they also indicate a significant correlation (p