Departamento de Actividad Física y Deporte, Facultad de Ciencias del Deporte, Universidad de Murcia (UM), 30720 San Javier, Spain.
Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain.
Int J Environ Res Public Health. 2021 Apr 23;18(9):4490. doi: 10.3390/ijerph18094490.
Studies have reported the association between cardiorespiratory fitness and higher adherence to the Mediterranean diet as well as lower recreational screen time. Similarly, higher screen time has been negatively linked to a lower adherence to the Mediterranean diet. However, the mediator effect of cardiorespiratory fitness on the influence of screen time on adherence to the Mediterranean diet is still unknown. The aim of this study was two-fold: first, to assess the combined association of recreational screen time and cardiorespiratory fitness with adherence to Mediterranean diet among Spanish schoolchildren, and second, to elucidate whether the association between recreational screen time and adherence to the Mediterranean diet is mediated by cardiorespiratory fitness.
A descriptive and cross-sectional study was conducted. A total of 370 schoolchildren aged 6-13 years from six schools in the Region of Murcia (Spain) were included.
The mediation analysis showed that once screen time and cardiorespiratory fitness were included together in the model, cardiorespiratory fitness was positively linked to adherence to the Mediterranean diet ( = 0.020) and although screen time remained negatively related to adherence to the Mediterranean diet, this association was slightly attenuated (indirect effect = -0.027; 95% CI = (-0.080, -0.002)).
This research supports that cardiorespiratory fitness may reduce the negative association between screen time and Mediterranean dietary patterns.
研究报告称，心肺适能与更高的地中海饮食依从性以及更少的娱乐性屏幕时间有关。同样，更高的屏幕时间与较低的地中海饮食依从性呈负相关。然而，心肺适能对屏幕时间对地中海饮食依从性的影响的中介效应尚不清楚。本研究旨在双重评估：首先，评估西班牙学龄儿童的娱乐性屏幕时间和心肺适能与地中海饮食依从性的综合关联；其次，阐明娱乐性屏幕时间与地中海饮食依从性之间的关联是否受心肺适能的影响。
进行了一项描述性和横断面研究。共纳入来自西班牙穆尔西亚地区六所学校的 370 名 6-13 岁的学龄儿童。
中介分析表明，一旦将屏幕时间和心肺适能同时纳入模型，心肺适能与地中海饮食依从性呈正相关（ = 0.020），尽管屏幕时间仍与地中海饮食依从性呈负相关，但这种相关性略有减弱（间接效应 = -0.027；95%CI = (-0.080, -0.002)）。
本研究支持心肺适能可能会降低屏幕时间与地中海饮食模式之间的负相关。
