Abstract

Background

It is unclear if puberty timing influences future physical activity (PA).

Aim

To investigate the association of puberty timing with PA across adolescence and adulthood.

Subjects and methods

Data were from two British cohorts. Participants from an adolescent birth cohort (females = 2349, males = 1720) prospectively reported age at menarche and voice break and had PA recorded by Actigraph accelerometers at ages 14 years and 16 years. A cohort of middle-aged and older adults (40–70 years; females = 48,282; males = 36,112) recalled their age at puberty and had PA (mean acceleration; mg) measured by AxivityAX3 accelerometers.

Results

After adjustment for age, education, smoking and BMI, per 1-year older age at menarche was associated with higher mean counts/minute at age 14 years (0.07 SD counts/minute; 95% CI = 0.04–0.11) with associations attenuated at age 16 years (0.02; −0.03–0.07). Differences in mean acceleration per older year at menarche were close to the null in women aged 40–49 years (0.02 mg; 0.01–0.03), 50–59 years (0.01; 0.00–0.02) and 60–70 years (0.01; 0.00–0.01). Age at voice break and PA associations were close to the null in both cohorts.

Conclusion

We found a positive association between puberty timing and PA in females which weakened at older ages and limited evidence of an association at any age in males.

中文翻译：

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青春期年龄和加速度计测量的体力活动：来自两个独立的英国队列的研究结果。

 抽象的

 背景

目前尚不清楚青春期时间是否会影响未来的体力活动 (PA)。

 目的

调查青春期时间与青春期和成年期 PA 的关系。

 主题和方法

数据来自两个英国队列。来自青少年出生队列的参与者（女性 = 2349 名，男性 = 1720 名）前瞻性地报告了初潮和声音中断的年龄，并在 14 岁和 16 岁时通过 Actigraph 加速度计记录了 PA。一组中老年人（40-70 岁；女性 = 48,282；男性 = 36,112）回忆起他们青春期的年龄，并通过 AxivityAX3 加速度计测量了 PA（平均加速度； mg ）。

 结果

调整年龄、教育程度、吸烟情况和 BMI 后，初潮年龄每增加 1 岁，14 岁时每分钟的平均计数就会增加（0.07 个 SD 计数/分钟；95% CI = 0.04-0.11），而 14 岁时这种关联减弱。 16 岁（0.02；-0.03–0.07）。在 40-49 岁（0.02 mg；0.01-0.03）、50-59 岁（0.01；0.00-0.02）和 60-70 岁（0.01；0.00）女性中，初潮时每晚平均加速度的差异接近零。 –0.01）。两个队列中声音中断时的年龄和 PA 关联都接近零。

 结论

我们发现，女性的青春期时机与 PA 之间存在正相关关系，这种相关关系随着年龄的增长而减弱，而在男性的任何年龄段，这种相关性的证据有限。