Power, measured in watts, is a versatile and objective metric for assessing effort during running or cycling. Unlike heart rate, which can fluctuate due to external factors like temperature, hydration, or fatigue, power reflects your performance consistently, making it a reliable tool for tracking intensity.
Running or Cycling power is a valuable metric for athletes seeking to optimize their training and performance. To fully leverage this metric, it’s essential to determine your Functional Threshold Power (FTP) accurately. FTP represents the highest average power you can sustain for up to one hour and forms the foundation for training with power zones.
Power Zones
Power zones are training intensity levels defined as percentages of your FTP. These zones help runners and cyclists focus on specific aspects of fitness, such as endurance or explosive power.
150%FTP"Zone 7 - Power: 150% FTP
- Purpose: Develop maximum explosive power.
- Training Benefits: Improves sprinting strength, short-term power output, and lactate tolerance.
Zone 6 - Power: 120–149% FTP
- Purpose: Enhance high-intensity efforts and short bursts of power.
- Training Benefits: Builds explosive strength, anaerobic endurance, and tolerance for high lactate levels.
Zone 5 - Power: 105–119% FTP
- Purpose: Maximize aerobic capacity and oxygen utilization.
- Training Benefits: Increases heart strength, aerobic endurance, and high-intensity performance.
Zone 4 - Power: 90–104% FTP
- Purpose: Increase sustainable power output over longer durations.
- Training Benefits: Boosts lactate threshold, muscular endurance, and stamina.
Zone 3 - Power: 75–89% FTP
- Purpose: Improve muscular endurance and mid-intensity performance.
- Training Benefits: Enhances glycogen storage, stamina, and aerobic fitness.
Zone 2 - Power: 55–74% FTP
- Purpose: Build a strong aerobic base for long, steady efforts.
- Training Benefits: Increases fat-burning efficiency and cardiovascular endurance.
Zone 1 - Power: 0–54% FTP
- Purpose: Support recovery and reduce fatigue.
- Training Benefits: Promotes circulation, reduces fatigue, and facilitates recovery between intense efforts.
Related content: For more detailed information on Power Training refer to the Guide: Mastering Power Training for Running and Cycling