Abstract

Background

The influence of maturity-status on athletic performance is reasonably well-documented. Methodological and practical issues of assessment and lack of longitudinal data have impacted the success of various models.

Aim

To develop age- and sex-specific developmental curves for sprint acceleration in elite youth tennis players and to address variation in performance relative to chronological and biological age.

Subjects and methods

Measures of acceleration were available for 3120 elite youth tennis players aged 8–15 years attending National and Regional Talent Identification days. Variation in acceleration by chronological and estimated biological ages was evaluated in corresponding data for an independent sample of elite youth players 8.9 to 15.1 years of age.

Results

Acceleration varied as a function of chronological and biological age relative to developmental curves. Early maturing males and females had significantly poorer performances when acceleration was considered relative to biological age. Significant discrepancy in percentiles relative to biological versus chronological ages was also evident between early and late maturing players of each sex.

Conclusion

Evaluating performance relative to developmental curves and maturity status may be a practical means of monitoring long-term athlete development in tennis.

中文翻译：

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发育适应性曲线：评估精英初中网球运动员相对于年龄和成熟状态的冲刺加速度。

摘要

背景

成熟状态对运动成绩的影响已得到充分证明。评估的方法和实践问题以及缺乏纵向数据已经影响了各种模型的成功。

目标

制定年龄和性别特定的发育曲线，以提高精英青年网球运动员的冲刺速度，并解决相对于时间和生物学年龄的性能差异。

主题与方法

可为参加国家和地区人才鉴定日的3120名8-15岁的青少年青年网球运动员提供加速措施。对于年龄在8.9至15.1岁之间的精英青年球员的独立样本，在相应的数据中评估了按年龄和估计的生物学年龄得出的加速度变化。

结果

相对于发育曲线，加速度随时间和生物年龄的变化而变化。当考虑相对于生物学年龄的加速时，早熟的雄性和雌性的性能明显较差。每种性别的早熟和晚熟球员之间，相对于生物学年龄和按年龄排列的年龄百分位数也存在明显差异。

结论

评估相对于发育曲线和成熟状态的表现可能是监测网球运动员长期发展的一种实用手段。