Instituto de Investigación Hospital 12 de Octubre (imas12), Grupo de Investigación en Actividad Física y Salud (PaHerg), Madrid,Spain.
Department of Systems Biology, University of Alcalá, Madrid,Spain.
Int J Sports Physiol Perform. 2023 Jun 28;18(10):1141-1144. doi: 10.1123/ijspp.2023-0042. Print 2023 Oct 1.
The record power profile (RPP) has gained popularity as a method of monitoring endurance cycling performance. However, the expected variation of cyclists' performance between seasons remains unknown. We aimed to assess the between-seasons variability of peak performance (assessed through the RPP) in male professional cyclists.
The study followed a longitudinal observational design. Sixty-one male professional cyclists (age 26 [5] y) with power output data from both training sessions and competitions were analyzed for a median of 4 consecutive seasons (range 2-12). The highest mean maximum power values attained for different durations (from 10 s to 30 min), as well as the resulting critical power, were determined for each season. Within-cyclist variability between seasons was assessed, and the upper threshold of expected changes (ie, twice the normal coefficient of variation) was determined.
All mean maximum power values showed an overall high agreement and low variability between seasons (intraclass correlation coefficient [ICC] = .76-.88 and coefficient of variation [CV] = 3.2%-5.9%), with the lowest variability observed for long efforts (>1 min). Critical power showed an ICC and CV of .79 (95% CI, .70-.85) and 3.3% (95% CI, 3.0%-3.7%), respectively. Upper thresholds of expected variation were <12% for short efforts (≤1 min) and <8% for long efforts.
"Real-world" peak performance assessed through the RPP shows a low variability between seasons in male professional cyclists-especially for long efforts-with expected variation being around 6% and 3% for short (≤1 min) and long efforts, respectively, and with changes >12% and >8%, respectively, being infrequent for these effort durations.
记录功率谱（RPP）作为监测耐力自行车运动表现的一种方法已经越来越受欢迎。然而，不同季节自行车运动员表现的预期变化仍不清楚。我们旨在评估男性职业自行车运动员的最高性能（通过 RPP 评估）的赛季间可变性。
本研究采用纵向观察设计。对 61 名年龄为 26（5）岁的男性职业自行车运动员的训练和比赛的功率输出数据进行了分析，中位数为 4 个连续赛季（范围为 2-12 个赛季）。为每个赛季确定了不同持续时间（从 10 秒到 30 分钟）的最高平均最大功率值以及由此产生的临界功率。评估了赛季间的个体内变异性，并确定了预期变化的上限（即正常变异系数的两倍）。
所有平均最大功率值在赛季间表现出高度一致性和低变异性（组内相关系数[ICC] =.76-.88 和变异系数[CV] = 3.2%-5.9%），最长努力（> 1 分钟）的变异性最低。临界功率的 ICC 和 CV 分别为.79（95% CI，.70-.85）和 3.3%（95% CI，3.0%-3.7%）。对于短时间（≤1 分钟）的努力，预期变化的上限<12%，对于长时间（>1 分钟）的努力，预期变化的上限<8%。
通过 RPP 评估的“真实世界”峰值性能在男性职业自行车运动员中显示出赛季间的低变异性-尤其是对于长距离努力-预期变化分别约为 6%和 3%，对于短距离（≤1 分钟）和长距离努力，变化分别大于 12%和 8%的情况较为罕见。
