Can interval training focused on high-intensity, short-duration efforts (e.g., 20-30 seconds at 120% FTP) be detrimental to endurance performance in road racing and fondo events, potentially leading to a decrease in lactate threshold and overall aerobic capacity?
Many training plans and coaches advocate for the inclusion of high-intensity interval training (HIIT) to improve anaerobic capacity and explosive power, but Im wondering if this approach might be misguided for endurance-focused events.
If we consider the specific demands of road racing and fondo events, which often involve prolonged periods of steady-state riding at moderate to high intensities, its possible that HIIT might not be the most effective use of training time.
Could it be that a more effective approach would be to focus on longer, sub-threshold intervals (e.g., 10-20 minutes at 90-100% FTP) to build sustained endurance and increase lactate threshold, rather than relying on short, all-out efforts?