Reference standards for power at the lactate threshold 2 for cycle ergometry throughout the lifespan in Germany.

IF 2.5 2区 医学 Q2 SPORT SCIENCES
Journal of Sports Sciences Pub Date : 2025-08-01 Epub Date: 2025-06-19 DOI:10.1080/02640414.2025.2517913
Janis Fiedler, Maximiliane Thron, Stefan Altmann, Sascha Härtel, Friedrich Barsch, Lars Schlenker, Susanne Krug, Klaus Bös, Alexander Woll
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引用次数: 0

Abstract

Cardiovascular fitness is an important health marker but reference values for the performance at lactate thresholds are lacking. This study aimed to provide reference standards for the performance on the cycle ergometer at fixed and individual lactate threshold 2 concepts throughout the lifespan. Data from two nationwide studies in Germany (KiGGS wave 2 and DEGS1 study) were pooled to a final sample of 2389 female and 2801 male participants aged 14-64. The data includes the results of an incremental bicycle ergometer test for the parameters absolute (W) and relative (W/kg) power at a fixed (3 mmol/l, LT2fix) and at an individual lactate threshold 2 (base lactate + 1 mmol/l, LT2ind). Generalized additive models for location, scale, and shape (GAMLSS) were used to calculate the reference values. The LT2ind was reached at lower power than the LT2fix. Throughout the lifespan, relative power had its peak at 14 years, declined until age 20 and then declined further but slower until the maximum age of 64 years. Absolute power remained fairly stable until age 45 after which it slowly declined until maximum age. The presented reference values can be used for estimating cardiorespiratory fitness among adolescents and adults in Germany.

德国在整个生命周期中乳酸阈值功率2的参考标准。
心血管健康是一个重要的健康指标,但缺乏乳酸阈值的参考值。本研究旨在为在整个生命周期中固定和个体乳酸阈值2概念下的循环劳力计性能提供参考标准。来自德国两项全国性研究(KiGGS wave 2和DEGS1研究)的数据汇集到最终样本中,包括2389名女性和2801名年龄在14-64岁之间的男性参与者。数据包括固定(3 mmol/l, LT2fix)和单个乳酸阈值2(乳酸碱+ 1 mmol/l, LT2ind)下的绝对(W)和相对(W/kg)功率参数增量自行车测力仪测试的结果。采用位置、尺度和形状广义加性模型(GAMLSS)计算参考值。在比LT2fix更低的功率下达到LT2ind。在整个生命周期中,相对权力在14岁时达到顶峰,到20岁时下降,然后进一步下降,但下降速度较慢,直到64岁时达到最大值。在45岁之前,绝对权力保持相当稳定,之后逐渐下降,直到最大年龄。提出的参考值可用于估计德国青少年和成人的心肺健康。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Sports Sciences
Journal of Sports Sciences 社会科学-运动科学
CiteScore
6.30
自引率
2.90%
发文量
147
审稿时长
12 months
期刊介绍: The Journal of Sports Sciences has an international reputation for publishing articles of a high standard and is both Medline and Clarivate Analytics-listed. It publishes research on various aspects of the sports and exercise sciences, including anatomy, biochemistry, biomechanics, performance analysis, physiology, psychology, sports medicine and health, as well as coaching and talent identification, kinanthropometry and other interdisciplinary perspectives. The emphasis of the Journal is on the human sciences, broadly defined and applied to sport and exercise. Besides experimental work in human responses to exercise, the subjects covered will include human responses to technologies such as the design of sports equipment and playing facilities, research in training, selection, performance prediction or modification, and stress reduction or manifestation. Manuscripts considered for publication include those dealing with original investigations of exercise, validation of technological innovations in sport or comprehensive reviews of topics relevant to the scientific study of sport.
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