Clinical Sports Medicine
Problem: Lower altitude stay (1250m) and extensive recreational aerobic activity like skiing at lower to moderate altitude (1250-2000m) and its effect on oxygen transport parameters had not been thoroughly investigated.Methods: The experimental group (N=17) underwent an intervention, a typical 10-da...
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Dynamic Media Sales Verlag
2019
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oai:doaj.org-article:24b2d8edc9294219b912623462c9c86c2021-11-16T19:01:41ZClinical Sports Medicine0344-59252510-526410.5960/dzsm.2018.359https://doaj.org/article/24b2d8edc9294219b912623462c9c86c2019-01-01T00:00:00Zhttps://www.germanjournalsportsmedicine.com/archive/archiv-2019/issue-1/der-aerobe-trainingseffekt-auf-sauerstofftransportparameter-bei-skianfaengern-in-hoehenlagen-zwischen-1250-2000m/https://doaj.org/toc/0344-5925https://doaj.org/toc/2510-5264Problem: Lower altitude stay (1250m) and extensive recreational aerobic activity like skiing at lower to moderate altitude (1250-2000m) and its effect on oxygen transport parameters had not been thoroughly investigated.Methods: The experimental group (N=17) underwent an intervention, a typical 10-day ski-trip. They slept at 1250 m and performed 5-6 hours of aerobic activity (skiing) at 1250-2000m altitude. The control group (N=15) stayed at sea level and performed their regular activities. The ferritin levels, reticulocyte count, RBC parameters and erythropoietin before and 48 h after the trip were measured in both groups.Results: The reticulocyte count increased (44.516.6 to 67.919.18 G/L) and somewhat surprisingly erythropoietin decreased in experimental group (6.042.39 to 4.911.54 IU/L, ANOVA p=<0.001). Ferritin levels decreased and reticulocyte count increased in 88% of all experimental group subjects while in control group it changed in both directions. The initial erythrocyte concentration was foundto be a good predictor of reticulocyte increase changes,while ferritin reserveswasdid not. No significant changes after intervention were observed in other parameters.Discussion: In recreational population, sleeping at lower altitudes in combination with aerobic activity of longer daily duration like skiing, elicits changes in erythropoiesis.KEY WORDS: Altitude, Training, Hypoxia, Ferritin, Reticulocyte, ErythropoietinSedlaček MRužić LCigrovski VDynamic Media Sales VerlagarticleSports medicineRC1200-1245DEENDeutsche Zeitschrift für Sportmedizin, Vol 70, Iss 1 (2019) |
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Sports medicine RC1200-1245 |
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Sports medicine RC1200-1245 Sedlaček M Ružić L Cigrovski V Clinical Sports Medicine |
| description |
Problem: Lower altitude stay (1250m) and extensive recreational aerobic activity like skiing at lower to moderate altitude (1250-2000m) and its effect on oxygen transport parameters had not been thoroughly investigated.Methods: The experimental group (N=17) underwent an intervention, a typical 10-day ski-trip. They slept at 1250 m and performed 5-6 hours of aerobic activity (skiing) at 1250-2000m altitude. The control group (N=15) stayed at sea level and performed their regular activities. The ferritin levels, reticulocyte count, RBC parameters and erythropoietin before and 48 h after the trip were measured in both groups.Results: The reticulocyte count increased (44.516.6 to 67.919.18 G/L) and somewhat surprisingly erythropoietin decreased in experimental group (6.042.39 to 4.911.54 IU/L, ANOVA p=<0.001). Ferritin levels decreased and reticulocyte count increased in 88% of all experimental group subjects while in control group it changed in both directions. The initial erythrocyte concentration was foundto be a good predictor of reticulocyte increase changes,while ferritin reserveswasdid not. No significant changes after intervention were observed in other parameters.Discussion: In recreational population, sleeping at lower altitudes in combination with aerobic activity of longer daily duration like skiing, elicits changes in erythropoiesis.KEY WORDS: Altitude, Training, Hypoxia, Ferritin, Reticulocyte, Erythropoietin |
| format |
article |
| author |
Sedlaček M Ružić L Cigrovski V |
| author_facet |
Sedlaček M Ružić L Cigrovski V |
| author_sort |
Sedlaček M |
| title |
Clinical Sports Medicine |
| title_short |
Clinical Sports Medicine |
| title_full |
Clinical Sports Medicine |
| title_fullStr |
Clinical Sports Medicine |
| title_full_unstemmed |
Clinical Sports Medicine |
| title_sort |
clinical sports medicine |
| publisher |
Dynamic Media Sales Verlag |
| publishDate |
2019 |
| url |
https://doaj.org/article/24b2d8edc9294219b912623462c9c86c |
| work_keys_str_mv |
AT sedlacekm clinicalsportsmedicine AT ruzicl clinicalsportsmedicine AT cigrovskiv clinicalsportsmedicine |
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1718426161186340864 |