Int J Sports Physiol Perform. 2021 Sep 1;16(9):1261-1269. doi: 10.1123/ijspp.2020-0662. Epub 2021 Mar 10.
Numerous methods exist to quantify training load (TL). However, the relationship with performance is not fully understood. Therefore the purpose of this study was to investigate the influence of the existing TL quantification methods on performance modeling and the outcome parameters of the fitness-fatigue model.
During a period of 8 weeks, 9 subjects performed 3 interval training sessions per week. Performance was monitored weekly by means of a 3-km time trial on a cycle ergometer. After this training period, subjects stopped training for 3 weeks but still performed a weekly time trial. For all training sessions, Banister training impulse (TRIMP), Lucia TRIMP, Edwards TRIMP, training stress score, and session rating of perceived exertion were calculated. The fitness-fatigue model was fitted for all subjects and for all TL methods.
The error in relating TL to performance was similar for all methods (Banister TRIMP: 618 [422], Lucia TRIMP: 625 [436], Edwards TRIMP: 643 [465], training stress score: 639 [448], session rating of perceived exertion: 558 [395], and kilojoules: 596 [505]). However, the TL methods evolved differently over time, which was reflected in the differences between the methods in the calculation of the day before performance on which training has the biggest positive influence (range of 19.6 d).
The authors concluded that TL methods cannot be used interchangeably because they evolve differently.
有许多方法可以量化训练负荷（TL）。然而，其与表现的关系尚未完全明确。因此，本研究的目的是调查现有的 TL 量化方法对表现建模和适应-疲劳模型的结果参数的影响。
在 8 周的时间里，9 名受试者每周进行 3 次间歇训练。每周通过在固定自行车上进行 3 公里计时赛来监测表现。经过这段训练期后，受试者停止训练 3 周，但仍每周进行一次计时赛。对于所有训练课程，计算了班纳斯特训练冲击（TRIMP）、露西亚 TRIMP、爱德华兹 TRIMP、训练压力得分和训练感觉评分。为所有受试者和所有 TL 方法拟合了适应-疲劳模型。
将 TL 与表现相关联的误差对于所有方法都相似（班纳斯特 TRIMP：618 [422]、露西亚 TRIMP：625 [436]、爱德华兹 TRIMP：643 [465]、训练压力得分：639 [448]、训练感觉评分：558 [395]和千焦耳：596 [505]）。然而，TL 方法随时间的推移呈现不同的演变，这反映在计算对表现产生最大积极影响的前一天训练的方法之间的差异（范围为 19.6 天）。
作者得出结论，TL 方法不能互换使用，因为它们的演变方式不同。
