Benavente-Marín Juan Carlos, Barón-López Francisco Javier, Gil Barcenilla Begoña, Longo Abril Guadalupe, Rumbao Aguirre José M, Pérez-Farinós Napoleón, Wärnberg Julia
EpiPHAAN Research Group, Universidad de Málaga-Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain.
Plan Integral de Obesidad Infantil de Andalucía (PIOBIN), Consejería de Salud y Consumo. Junta de Andalucía, Sevilla, Spain.
PeerJ. 2024 Mar 8;12:e16990. doi: 10.7717/peerj.16990. eCollection 2024.
Physical activity (PA) is associated with numerous health benefits. Vigorous PA (VPA) may have a greater impact on public health than lower-intensity PA. The incorporation of a specific recommendation on VPA could complement and improve existing recommendations for average daily moderate-vigorous PA (MVPA). Physical education classes could have a positive impact on children's adherence to average daily physical activity recommendations. The aim was to investigate the association between MVPA and VPA in children, as well as adherence to recommendations, and obesity and the presence of physical education classes.
A cross-sectional study of physical activity was conducted in a sample of 8 and 9-year-old children in Andalusia (Spain). GENEActiv accelerometers were used, placed on the non-dominant wrist for at least eight consecutive days (24-h protocol). School days with and without physical education class, and weekend days were defined. ROC curves were used to calculate the threshold associated with obesity for average daily MVPA and VPA for recommendations.
A total of 360 schoolchildren were included in the analyses (184 girls). An average of 7.7 (SD 1.4) valid days per participant were evaluated, with 19.9 (SD 10.5) and 11.4 (SD 5.1) minutes of VPA performed by boys and girls respectively. 25.8% of the participants were classified with central obesity. The optimal threshold determined with ROC analysis was 12.5 and 9.5 minutes of average daily VPA for boys and girls, respectively (RecVPA), and 75 minutes of average daily MVPA for both sexes (RecMVPA). The RecVPA showed stronger association with obesity. On school days with physical education class, compared to days without this class, children showed increased VPA and MVPA engagement and better compliance with recommendations, with smaller differences in adherence according to sex or obesity.
On days with physical education class, more physical activity was accumulated at all intensities and greater adherence to the recommendations than on days without this class. VPA had a stronger correlation with the absence of obesity than lower-intensity activity. It was also observed that boys were physically more active and had higher adherence to the recommendations than girls.
体育活动（PA）对健康有诸多益处。剧烈体育活动（VPA）可能比低强度体育活动对公众健康的影响更大。纳入关于VPA的具体建议可以补充和完善现有的每日中等至剧烈体育活动（MVPA）建议。体育课可能对儿童遵守每日体育活动建议产生积极影响。目的是调查儿童MVPA与VPA之间的关联，以及遵守建议的情况、肥胖状况和是否有体育课。
对西班牙安达卢西亚8岁和9岁儿童样本进行了一项体育活动横断面研究。使用GENEActiv加速度计，连续至少八天（24小时方案）佩戴在非优势手腕上。定义了有体育课和没有体育课的上学日以及周末。使用ROC曲线计算与肥胖相关的每日平均MVPA和VPA建议阈值。
共有360名学童纳入分析（184名女孩）。每位参与者平均评估了7.7（标准差1.4）个有效日，男孩和女孩分别进行了19.9（标准差10.5）和11.4（标准差5.1）分钟的VPA。25.8%的参与者被归类为中心性肥胖。通过ROC分析确定的最佳阈值分别为男孩和女孩每日平均VPA 12.5分钟和9.5分钟（RecVPA），以及男女每日平均MVPA 75分钟（RecMVPA）。RecVPA与肥胖的关联更强。在有体育课的上学日，与没有体育课的日子相比，儿童的VPA和MVPA参与度增加，对建议的遵守情况更好，根据性别或肥胖状况在遵守情况上的差异较小。
与没有体育课的日子相比，在有体育课的日子里，各个强度的体育活动积累更多，对建议的遵守情况更好。与低强度活动相比，VPA与无肥胖的相关性更强。还观察到男孩比女孩身体更活跃，对建议的遵守程度更高。
