Altitude training
Altitude training has been studied in 1 paper since 2025: 1 trial in people. The newest paper, Aug 18, 2025: “Persisting elevation of total hemoglobin mass after altitude training in elite swimmers: a potential role of prolonged erythrocyte survival”.
1 paper studies it3 findingsUpdated
“Hbmass, hematocrit, CD71-positive RBCs, RBC phosphatidylserine exposure, and the percentage of RBC retaining mitochondria were increased after LHTH camp.”
None of its findings points the other way.
- 1 lab in 1 country
- Funder: Agence Nationale de la Recherche
- Human trial1
Studies in people
1 study gave altitude training to people and measured what changed.
up: Increases total hemoglobin mass
no change: Has no effect on swimming performance-3.8 ± 5.1 s
Trial9 people4-wk
General population
American journal of physiology. Heart and circulatory physiology, Aug 18, 2025
What did studies of Altitude training find?
3Studies of Altitude training measured 3 outcomes; the most studied are swimming performance (1 study), cellular senescence (1) and total hemoglobin mass (1).
Swimming performance
no changein humans1
1 study
Swimming performance
no changein humans1
Altitude training has no effect on swimming performance in humans (-3.8 ± 5.1 s).
“Although 400-m swimming performance was not significantly improved 10 days post-LHTH (-3.8 ± 5.1 s), its change was associated with Hbmass variations.”
Human trial10 days post-LHTHn = 6
American journal of physiology. Heart and circulatory physiology
Cellular senescence
upin humans1
1 study
Cellular senescence
upin humans1
Altitude training increases cellular senescence in humans.
“LHTH camp was accompanied by an increase in RBC senescence markers”
Human triallive high-train highred blood cells4-wkn = 9
American journal of physiology. Heart and circulatory physiology
Total hemoglobin mass
upin humans1
1 study
Total hemoglobin mass
upin humans1
Altitude training increases total hemoglobin mass in humans.
“Hbmass, hematocrit, CD71-positive RBCs, RBC phosphatidylserine exposure, and the percentage of RBC retaining mitochondria were increased after LHTH camp.”
Human triallive high-train highblood4-wkn = 9
American journal of physiology. Heart and circulatory physiology