Abstract

Background

Three commonly used non-invasive protocols are implemented to estimate the timing at which PHV most likely occurs. Accurate estimation of circumpubertal years can aid in managing training load of adolescent athletes.

Aim

Three protocols were compared against observed age at PHV: an estimate of 13.8 ± 1.0 years – generic age at PHV (from longitudinal measures); an estimate based on the maturity offset equation, predicted age at PHV ±1.0 year; a window of PHV based on 85–96% of predicted adult height at time of observation.

Subjects and methods

A final sample of 23 (from 28) adolescent male participants were selected from the academy of an English Premier League club. Anthropometric measures were collected across five playing seasons; age at PHV was estimated with Super-Imposition by Translation and Rotation (SITAR). The three protocols were compared based on measures at 13.0 years.

Results and Conclusions: An age window based on predicted maturity offset did not improve estimation of PHV compared to generic age method; however, the percentage of predicted adult height window showed improvement in performance shown by the following results. Predicted age at PHV correctly assigned 15 participants (65%) as experiencing PHV, while the percentage height correctly assigned 17 participants (74%). Generic age and predicted age at PHV correctly predicted observed age at PHV for 14 participants (61%), percentage of adult height window correctly predicted 22 participants (96%).

中文翻译：

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预测精英青年足球运动员青春期增长高峰的时机：方法评估。

摘要

背景

实施三种常用的非侵入性协议以估计最有可能发生PHV的时间。准确估计青春期后的年龄可以帮助管理青春期运动员的训练负担。

目标

将三种方案与观察到的PHV年龄进行了比较：估计为13.8±1.0岁– PHV的普通年龄（根据纵向测量）；基于成熟度补偿方程的估计值，PHV±1.0年的预测年龄；PHV的窗口基于观察时成人预计身高的85–96％。

主题与方法

从英超联赛俱乐部的学院中选择了23名（来自28名）青春期男性参与者的最终样本。在五个比赛季节中收集了人体测量学数据；通过平移和旋转叠加法（SITAR）估算了PHV的年龄。根据13.0年时的测量结果比较了这三个协议。

结果与结论：与通用年龄方法相比，基于预测的成熟度偏移的年龄窗口并不能改善对PHV的估计。但是，预测的成年人身高窗口百分比显示出以下结果所示的性能改善。在PHV的预测年龄正确分配了15名参与者（65％）为经历PHV，而在身高百分比中正确分配了17名参与者（74％）。普通年龄和PHV的预测年龄正确地预测了14位参与者在PHV的观察年龄（61％），成人身高窗的百分比正确地预测了22位参与者（96％）。