Repositorio
Institucional

Merellano-Navarro, Eugenio

Godoy-Cumillaf, Andres

Fuentes-Merino, Paola

Farias-Valenzuela, Claudio

Duclos-Bastias, Daniel

Giakoni-Ramirez, Frano

Bruneau-Chavez, Jose

The Association between Sedentary Behavior, Physical Activity, and Physical Fitness with Body Mass Index and Sleep Time in Chilean Girls and Boys: A Cross-Sectional Study

MDPI

CHILDREN-BASEL

en

Background: In recent decades, the school population has undergone behavioral changes that have affected their health and adult life. The current educational scenario presents high levels of sedentary behavior, physical inactivity, low physical fitness, high levels of obesity, and non-compliance with sleep recommendations. In Chile, the scientific evidence on associations between these behaviors is incipient. Objective: To analyze the association between sedentary behavior, physical activity, and physical fitness with BMI and minutes of sleep in Chilean children aged 10 to 11 years. Methods: A non-probabilistic convenience sample of 222 schoolchildren aged 10 to 11 years. The variables measured were body composition (BMI), cardiorespiratory fitness (20 m shuttle run test), lower and upper muscular strength (long jump test and handgrip dynamometry), speed (4 x 10 m running), and flexibility (sit and reach test). Physical activity and sleep were measured by accelerometers. Results: Of the participants, 60.4% and 90.6% did not comply with sleep and physical activity recommendations, respectively. Physical fitness was higher in boys in all components. The results of the linear regression show that in girls, moderate-vigorous-intensity physical activity, lower- and upper-body muscular strength, and cardiorespiratory endurance were associated with BMI and sleep. In boys, light-intensity physical activity and upper-body muscular strength were associated with both variables. Conclusions: Physical activity intensity, strength, and cardiorespiratory fitness were associated with BMI and sleep, however, physical activity intensity and associated physical fitness components differed by gender.

2023

artículo original

10.3390/children10060981

PDF

cardiorespiratory fitness

strength

speed

agility

flexibility

accelerometer

children

sedentary behavior

sleep

body mass index

Pediatría

aptitud cardiorrespiratoria

fortaleza

velocidad

agilidad

flexibilidad

acelerómetro

niños

comportamiento sedentario

dormir

índice de masa corporal

artículo original

versión publicada

CC BY 4.0

CC BY 4.0

acceso abierto

acceso abierto

WOS:001014120600001

verde# dorado

Pediatría