Performance Science Lab
Altitude lab
Altitude can help, but it’s easy to do wrong: the constraint is quality training at reduced oxygen.
Start here
- • If altitude kills intensity, the benefit can disappear — protect key sessions.
- • Use altitude strategies that fit your life: camps, intermittent hypoxia, or race-specific pacing plans.
- • Measure what matters: RPE drift, pace drop, and recovery, not vibes.
Study library (reference)
Individual studies for deeper reading.
The Effect of Natural or Simulated Altitude Training on High-Intensity Intermittent Running Performance in Team-Sport Athletes: A Meta-Analysis.
PMID 29129021 (2018): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
Evaluating the Impact of Urolithin A Supplementation on Running Performance, Recovery, and Mitochondrial Biomarkers in Highly Trained Male Distance Runners.
PMID 40839339 (2025): altitude — VO₂max, Time-trial performance (study note for endurance athletes).
Intermittent hypoxia does not affect endurance performance at moderate altitude in well-trained athletes.
PMID 20419592 (2010): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
"Living high-training low": effect of moderate-altitude acclimatization with low-altitude training on performance.
PMID 9216951 (1997): altitude, acclimatization — VO₂max, Time-trial performance (study note for endurance athletes).
Dietary Adjustments to Altitude Training in Elite Endurance Athletes; Impact of a Randomized Clinical Trial With Antioxidant-Rich Foods.
PMID 33345095 (2020): altitude — VO₂max, Time-trial performance (study note for endurance athletes).
Sex-Specific Effects of Respiratory Muscle Endurance Training on Cycling Time Trial Performance in Normoxia and Hypoxia.
PMID 34421638 (2021): hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
Acetazolamide does not alter endurance exercise performance at 3,500-m altitude.
PMID 31804890 (2020): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
Hematological status and endurance performance predictors after low altitude training supported by normobaric hypoxia: a double-blind, placebo controlled study.
PMID 31938005 (2019): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
Iron considerations for the athlete: a narrative review.
PMID 31055680 (2019): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
A Review of Carbohydrate Supplementation Approaches and Strategies for Optimizing Performance in Elite Long-Distance Endurance.
PMID 40077786 (2025): altitude — VO₂max, Time-trial performance (study note for endurance athletes).
"Living High-Training Low" for Olympic Medal Performance: What Have We Learned 25 Years After Implementation?
PMID 37116895 (2023): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).
Heat Versus Altitude Training for Endurance Performance at Sea Level.
PMID 33044330 (2021): altitude — VO₂max, Time-trial performance (study note for endurance athletes).
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Sources
- The Effect of Natural or Simulated Altitude Training on High-Intensity Intermittent Running Performance in Team-Sport Athletes: A Meta-Analysis.
- Evaluating the Impact of Urolithin A Supplementation on Running Performance, Recovery, and Mitochondrial Biomarkers in Highly Trained Male Distance Runners.
- Intermittent hypoxia does not affect endurance performance at moderate altitude in well-trained athletes.
- "Living high-training low": effect of moderate-altitude acclimatization with low-altitude training on performance.
- Dietary Adjustments to Altitude Training in Elite Endurance Athletes; Impact of a Randomized Clinical Trial With Antioxidant-Rich Foods.
- Sex-Specific Effects of Respiratory Muscle Endurance Training on Cycling Time Trial Performance in Normoxia and Hypoxia.
- Acetazolamide does not alter endurance exercise performance at 3,500-m altitude.
- Hematological status and endurance performance predictors after low altitude training supported by normobaric hypoxia: a double-blind, placebo controlled study.