Plain-English guides to lactate threshold, training zones and what to do with your FitnessCheck results.
All blog posts are written by us as humans based on our real life experiences. AI is used to check grammar and spelling only.
One athlete moved her anaerobic threshold from 12.7 to 14.3 km/h in 8 weeks with one session a week. Here's what a lactate curve shift actually looks like, what drove it, and what you can realistically expect from your own retest.
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We tested Hyrox pro Bodger Rees at KORE gym in Newport. We won't share his exact numbers, but the shape of an elite lactate profile is a lesson for every Hyrox athlete.
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Most Hyrox advice says race at threshold. The lactate data from my own race simulations says otherwise, and shows why running below your anaerobic threshold is what stops you blowing up.
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Two thresholds, five zones, one setting to change. Here's how your lactate test maps onto Garmin's heart rate zones.
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A 45-minute lactate test in South Wales showed Tayla's Zone 2 capped at 157 bpm, not 140. Her Garmin was wrong by 17 bpm. Here's what we found and changed.
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Most athletes find their zone 2 from the talk test, the 220-age formula, or their watch. All three are wrong for a meaningful share of runners, and you can't tell from the inside which kind of wrong yours is.
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A walk through what you actually receive in a lactate threshold test report, section by section, from at-a-glance summary to retest recommendations.
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Most athletes who blow up in the back half of a Hyrox spent the first half above their lactate threshold without realising it. Here is the fix, station by station.
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Most athletes who book a lactate threshold test benefit from it, some don't. Here is who walks away with the most useful data, and who should wait.
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