Maternal physical activity before and during the prenatal period and the offspring's academic performance in youth. The UP&DOWN study.

Objective: To examine the association of maternal physical activity before and during pregnancy with academic performance in youth.

Methods: This study included 1868 youth (6-18 years) and their mothers. Mothers recalled their physical activity before and during pregnancy.

Relationships between training load, salivary cortisol responses and performance during season training in middle and long distance runners.

Purpose: Monitoring training from a multifactorial point of view is of great importance in elite endurance athletes. This study aims to analyze the relationships between indicators of training load, hormonal status and neuromuscular performance, and to compare these values with competition performance, in elite middle and long-distance runners.

Method: Fifteen elite middle and long-distance runners (12 men, 3 women; age = 26.

Physical activity and cognition in adolescents: A systematic review.

Objectives: The purpose of this report is to perform a systematic review of the evidence on the associations between physical activity and cognition by differentiating between academic and cognitive performance measures. Second-generation questions regarding potential mediators or moderators (i.e.

Independent and combined influence of the components of physical fitness on academic performance in youth.

Objective: To examine the independent and combined associations of the components of physical fitness with academic performance among youths.

Study Design: This cross-sectional study included a total of 2038 youths (989 girls) aged 6-18 years. Cardiorespiratory capacity was measured using the 20-m shuttle run test.

[Perception of physical fitness is associated with perception of body weight; sociodemographic analysis in Spain].

Introduction: The objective of this study was to analyse the relationship between sociodemographic characteristics, body weight perception and physical fitness perception.

Methods: Survey by means of personal interview. The sample consisted of 8,594 participants living in Spain between 15 and 97 years of age.