Running your next PB depends heavily on your aerobic energy system.

From 5km upwards, 98% of your performance is fuelled by your aerobic energy system.

When you run your easy-aerobic runs too fast, you add unnecessary and nonspecific stress to your physiological system. More often than not, the result is that your races never align with your training. Due to a lack of aerobic development and chronically elevated systemic fatigue.

Using a heart rate monitor to control your aerobic runs, you can ensure that you’re training for maximal aerobic capacity. The ideal training zone for most runners is Zone 1 - Zone 2. Typically, 75 - 88% of your anaerobic threshold.

Most apps like Strava and Garmin will auto-calculate your threshold and zones, but it’s worth double-checking your threshold by finding your average heart rate from the last 20min of a 10km - half marathon race. 

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Links and resources to help your running.

• Steal my formula for smashing mind-blowing running PBs FOR FREE! https://link.drwillo.com/stealmyformula
• Buy one of my $59 DONE-FOR-YOU Training Plans. https://link.drwillo.com/leadtrainingplans
• Head to https://link.drwillo.com/reigniteyourrunning to apply for my group coaching program that hands intermediate runners the advanced level, personalised and scientifically-backed ‘here’s how you do it’ repeatable runner’s road map, so they can master the workout ‘why,’ consistently increase speed and leap towards their next PB in record time.