Purpose:To describe the within-season external workloads of professional male road cyclists for optimal training prescription. Methods: Training and racing of 4 international competitive professional male cyclists (age 24 ± 2 y, body mass 77.6 ± 1.5 kg) were monitored for 12 mo before the world team-time-trial championships. Three within-season phases leading up to the team-time-trial world championships on September 20, 2015, were defined as phase 1 (Oct-Jan), phase 2 (Feb-May), and phase 3 (June-Sept). Distance and time were compared between training and racing days and over each of the various phases. Times spent in absolute (<100, 100-300, 400-500, >500 W) and relative (0-1.9, 2.0-4.9, 5.0-7.9, >8 W/kg) power zones were also compared for the whole season and between phases 1-3. Results: Total distance (3859 ± 959 vs 10911 ± 620 km) and time (240.5 ± 37.5 vs 337.5 ± 26 h) were lower (P < .01) in phase 1 than phase 2. Total distance decreased (P < .01) from phase 2 to phase 3 (10911 ± 620 vs 8411 ± 1399 km, respectively). Mean absolute (236 ± 12.1 vs 197 ± 3 W) and relative (3.1 ± 0 vs 2.5 ± 0 W/kg) power output were higher (P < .05) during racing than training, respectively. Conclusion: Volume and intensity differed between training and racing over each of 3 distinct within-season phases.
Keywords: time trial, power output, SRM Powermeter, training loadUnderstanding the external workload demands of professional road cyclists is necessary to optimize training, reduce the risk of injury, and diagnose symptoms of overtraining. 1 The use of power meters during professional cycling races and training allows for multiple external load measurements to be instantaneously collected during a ride.Athletes and sports scientists commonly analyze these measurements to assess performance and to aid in their decision-making processes.The external workload in professional male cyclists has been previously described during road racing 2-6 and training. 7 While these studies add to a wealth of knowledge on external workload, the within-season distribution of workload during both training and racing is not well understood. Indeed, such research is limited to a detailed 50-week account of a world-class female triathlete in preparation for the Olympic-distance triathlon event. 8 Therefore, the purpose of this study was to investigate the within-season distribution of external workload in 4 professional road cyclists throughout a cycling season and preparing for the world team-time-trial championships.