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Cardiorespiratory fitness has declined among French children since 1999, although the decline appears to be getting smaller
Scandinavian Journal of Medicine & Science in Sports ( IF 3.5 ) Pub Date : 2024-04-29 , DOI: 10.1111/sms.14641 Jérémy Vanhelst 1 , Justin J Lang 2, 3, 4 , David Matelot 5 , François Carré 6 , Daniel Mercier 7 , Zékya Ulmer 8 , Jean-Michel Oppert 1, 9 , Georges Baquet 10 , Serge Berthoin 10 , Alicia Fillon 11, 12 , Laurent Béghin 13 , Grant R Tomkinson 4
Scandinavian Journal of Medicine & Science in Sports ( IF 3.5 ) Pub Date : 2024-04-29 , DOI: 10.1111/sms.14641 Jérémy Vanhelst 1 , Justin J Lang 2, 3, 4 , David Matelot 5 , François Carré 6 , Daniel Mercier 7 , Zékya Ulmer 8 , Jean-Michel Oppert 1, 9 , Georges Baquet 10 , Serge Berthoin 10 , Alicia Fillon 11, 12 , Laurent Béghin 13 , Grant R Tomkinson 4
Affiliation
BackgroundCardiorespiratory fitness (CRF) is a strong marker of current and future health. The aim of this study was to assess the national temporal trends in CRF for French children and adolescents between 1999 and 2022.MethodsCRF data were obtained from several cross‐sectional studies on 15 420 (51.1% boys) French children and adolescents aged 9–16 years between 1999 and 2022. The 20‐m shuttle run test (20mSRT) estimated CRF. Body mass index (BMI) was calculated from measured height and body mass, with BMI z ‐scores (BMIz) calculated using WHO growth curves. The 20mSRT results were corrected for protocol and converted to z ‐scores (20mSRTz) using international sex‐ and age‐specific norms. With additional adjustment for BMIz, temporal trends in mean 20mSRT performance (20mSRTz) were estimated using linear regression, with the distance max (D max ) method used to locate a breakpoint and linear segments fitted to points below and above the breakpoint. Trends in distributional characteristics were assessed visually and described as the ratio of the coefficients of variation (CVs).ResultsAfter adjustment for protocol, age, sex, and BMIz, a large decline in mean 20mSRT performance (trend per decade (95% CI): −1.42 SDs (−1.45, −1.39) or −18.4% (95% CI: −18.8, −18.0)) between 1999 and 2022 was found. D max located a breakpoint for the two‐linear‐segment model in year 2010. There was a large decline in mean 20mSRT performance pre‐2010 (trend per decade (95% CI): −2.31 SDs (−2.39, −2.24)), which reduced 0.06‐fold to a negligible decline post‐2010 (trend per decade (95% CI): –0.15 SD (−0.20, −0.10)). We also found that the trend in mean 20mSRT performance was not uniform across the population distribution. Between 1999 and 2022, there was a small trend in distributional asymmetry, with slightly smaller declines experienced by the high performers (above the 75th percentile).ConclusionsOur data suggest a large decline in the 20mSRT performance of French children and adolescents since 1999. This declining trend seems to have diminished considerably since 2010. Such declines in CRF could translate into declines in health status. Although a slowing in the declining trend in CRF in recent years is encouraging, more data are needed to confirm these findings.
中文翻译:
自 1999 年以来,法国儿童的心肺健康水平一直在下降,尽管下降幅度似乎正在缩小
背景心肺健康(CRF)是当前和未来健康的重要标志。本研究的目的是评估 1999 年至 2022 年间法国儿童和青少年 CRF 的全国时间趋势。方法 CRF 数据来自对 15 420 名(51.1% 男孩)法国 9-16 岁儿童和青少年的多项横断面研究。 1999 年至 2022 年间。20 米穿梭跑测试 (20mSRT) 估计了 CRF。体重指数(BMI)是根据测量的身高和体重计算得出的,BMI z ‐使用 WHO 生长曲线计算的分数 (BMIz)。 20mSRT 结果根据协议进行校正并转换为z ‐使用国际性别和年龄特定标准的分数 (20mSRTz)。通过对 BMIz 进行额外调整,使用线性回归估计平均 20mSRT 表现 (20mSRTz) 的时间趋势,距离最大值 ( D最大限度) 方法用于定位断点以及适合断点下方和上方点的线性段。分布特征的趋势通过视觉评估并描述为变异系数 (CV) 的比率。结果在调整方案、年龄、性别和 BMIz 后,平均 20mSRT 表现大幅下降(每十年趋势 (95% CI): 1999年至2022年间发现-1.42个标准差(-1.45,-1.39)或-18.4%(95% CI:-18.8,-18.0))。 D最大限度在 2010 年找到了双线性段模型的断点。2010 年之前平均 20mSRT 性能大幅下降(每十年趋势 (95% CI):−2.31 SD (−2.39, −2.24)),这2010 年后减少了 0.06 倍,降幅可忽略不计(每十年趋势 (95% CI):–0.15 SD (-0.20, -0.10))。 我们还发现,平均 20mSRT 表现的趋势在整个人群分布中并不均匀。 1999 年至 2022 年间,分布不对称出现了小趋势,高绩效者(第 75 个百分位数以上)的下降幅度略小。结论我们的数据表明,自 1999 年以来,法国儿童和青少年的 20mSRT 绩效大幅下降。自 2010 年以来,这种趋势似乎已大大减弱。CRF 的这种下降可能会转化为健康状况的下降。尽管近年来 CRF 下降趋势的放缓令人鼓舞,但仍需要更多数据来证实这些发现。
更新日期:2024-04-29
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
自 1999 年以来,法国儿童的心肺健康水平一直在下降,尽管下降幅度似乎正在缩小
背景心肺健康(CRF)是当前和未来健康的重要标志。本研究的目的是评估 1999 年至 2022 年间法国儿童和青少年 CRF 的全国时间趋势。方法 CRF 数据来自对 15 420 名(51.1% 男孩)法国 9-16 岁儿童和青少年的多项横断面研究。 1999 年至 2022 年间。20 米穿梭跑测试 (20mSRT) 估计了 CRF。体重指数(BMI)是根据测量的身高和体重计算得出的,BMI z ‐使用 WHO 生长曲线计算的分数 (BMIz)。 20mSRT 结果根据协议进行校正并转换为z ‐使用国际性别和年龄特定标准的分数 (20mSRTz)。通过对 BMIz 进行额外调整,使用线性回归估计平均 20mSRT 表现 (20mSRTz) 的时间趋势,距离最大值 ( D最大限度) 方法用于定位断点以及适合断点下方和上方点的线性段。分布特征的趋势通过视觉评估并描述为变异系数 (CV) 的比率。结果在调整方案、年龄、性别和 BMIz 后,平均 20mSRT 表现大幅下降(每十年趋势 (95% CI): 1999年至2022年间发现-1.42个标准差(-1.45,-1.39)或-18.4%(95% CI:-18.8,-18.0))。 D最大限度在 2010 年找到了双线性段模型的断点。2010 年之前平均 20mSRT 性能大幅下降(每十年趋势 (95% CI):−2.31 SD (−2.39, −2.24)),这2010 年后减少了 0.06 倍,降幅可忽略不计(每十年趋势 (95% CI):–0.15 SD (-0.20, -0.10))。 我们还发现,平均 20mSRT 表现的趋势在整个人群分布中并不均匀。 1999 年至 2022 年间,分布不对称出现了小趋势,高绩效者(第 75 个百分位数以上)的下降幅度略小。结论我们的数据表明,自 1999 年以来,法国儿童和青少年的 20mSRT 绩效大幅下降。自 2010 年以来,这种趋势似乎已大大减弱。CRF 的这种下降可能会转化为健康状况的下降。尽管近年来 CRF 下降趋势的放缓令人鼓舞,但仍需要更多数据来证实这些发现。