Cycling power training: FTP testing, power zones, and why Normalized Power matters more than average watts

If you want to get faster on the bike, you need a power meter. Heart rate is a delayed response to effort; power is the effort itself. While heart rate can drift due to caffeine, dehydration, or heat, 300 watts is always 300 watts. This objectivity allows for precise training prescription and pacing strategies that heart rate simply cannot match.

The FTP Test: 20-minute vs Ramp. Functional Threshold Power (FTP) is the highest average power you can sustain for approximately one hour. The most common test is the 20-minute time trial (taking 95% of the average power). However, many athletes overestimate their FTP with the 'Ramp Test' because it heavily favors anaerobic contribution. At CoachUpFit, we prefer a modified 20-minute protocol with a 5-minute blowout effort beforehand to deplete anaerobic reserves. This yields a more honest aerobic FTP for setting training zones.

Setting your Power Zones (Coggan Model). Zone 1 (Recovery): <55% FTP. Zone 2 (Endurance): 56-75% FTP - where you build mitochondrial density. Zone 3 (Tempo): 76-90% FTP. Zone 4 (Threshold): 91-105% FTP - the race-winning zone. Zone 5 (VO2max): 106-120% FTP. Zone 6 (Anaerobic): >120% FTP. Most amateur cyclists spend too much time in Zone 3 ('grey zone') and not enough in Zone 2 or Zone 4/5.

Normalized Power (NP) vs Average Power. Average power is misleading on hilly rides or criteriums. Coasting downhill brings the average down, but the physiological cost of the climbs remains high. Normalized Power (NP) uses an algorithm to weigh higher-intensity efforts more heavily, reflecting the true metabolic cost of the ride. A ride with 200W Average but 240W NP was much harder on your body than a steady 200W effort.

Structured Intervals. Once you have your FTP, training becomes mathematical. To raise FTP, focus on long intervals at 90-100% (e.g., 2x20 minutes or 4x8 minutes). To raise your ceiling, target VO2max intervals (e.g., 30 seconds on / 15 seconds off at 120-130% FTP). The key is progression: adding time in zone or wattage week over week.

The data doesn't lie. A power meter provides the raw data, but a coach provides the context. We analyze your power curve to see if you have a 'sprinter' or 'diesel' profile and adjust your training plan accordingly. Don't just collect data—use it to win.