Training load and intensity distribution for sprinting among world-class track cyclists

BACKGROUND: Only few studies analyzed real training programs of sprinters while that should be a valuable step in the understanding of sprint training. The present study aimed at characterizing track cycling sprinter training by training load and intensity distribution. METHODS: Twenty-nine weeks of prechampionship training data were retrospectively analyzed for 6 world-class athletes. Training load was measured by the ratio of volume completed to maximal volume and categorized by five intensity zones (endurance: zones1-2; sprinting: zones3-5) and exercise type (on-bike or resistance). Intra-week (training monotony) and inter-week (acute-chronic workload ratio) variation was also studied. RESULTS: On-bike training represented 77.4 +/- 15.3% of total training load; resistance training, 22.6 +/- 15.2% (note high standard deviation). Total weekly training load significantly varied (P=0.0002) with high acute-chronic workload ratio (12.0 +/- 3.2 weeks >1.5 or <0.8), but low intra-week variations (training monotony, 1.81 +/- 0.20). Zone4 and zone5 made up 74.4 +/- 16.9% of total training load; zone1, 15.8 +/- 11%. Training load was seldom in zone2 (6.4 +/- 5.3%) or zone3 (3.3 +/- 4.2%). From the first to the second half of the period, zone3-4 training load decreased (39.3 +/- 3.3 to 27.4 +/- 1.7%; P=0.01), while zone5 increased (34.9 +/- 2.4 to 50 +/- 3.7%; P=0.002). CONCLUSIONS: In this reduced group of elite athletes, training appeared to mainly consist of on-bike exercises within the highest intensity zones. As demonstrated by monotony and acute-chronic workload ratio overloading and unloading are based on high variations over weeks, not days. Essentially, this study describes a polarized intensity distribution on the highest intensities which increased with world championships approach. (Cite this article as: Desgorces FD, Slawinski J, Bertucci W, Rousseau F, Toussaint JF, Noirez P. Training load and intensity distribution for sprinting among world-class track cyclists. J Sports Med Phys Fitness 2023;63:513-20. DOI: 10.23736/S0022-4707.22.13685-6)