{"id":2686,"date":"2012-02-01T14:22:33","date_gmt":"2012-02-01T13:22:33","guid":{"rendered":"http:\/\/www.mapeisport.it\/attivita-scientifica\/time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2\/"},"modified":"2023-03-14T12:38:15","modified_gmt":"2023-03-14T11:38:15","slug":"time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2","status":"publish","type":"attivita-scientifica","link":"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2\/","title":{"rendered":"Time course of the hemoglobin mass response to natural altitude training in elite endurance cyclists"},"content":{"rendered":"<p>Garvican L<sup>1,2<\/sup>, Martin D,<sup> 1<\/sup> Quod M<sup>1<\/sup>, Stephens B<sup>1<\/sup>, Sassi A<sup>3<\/sup>, Gore C<sup>1<\/sup><\/p>\n<p style=\"text-align: justify;\">1, Department of Physiology, Australian Institute of Sport, Canberra, Australia;2, Exercise Physiology Laboratory, Flinders University,Bedford Park, South Australia, Australia; 3, Human Performance Lab, Mapei Sport Research Center, Castellanza, Italy<\/p>\n<p style=\"text-align: justify;\">To determine the time course of hemoglobin mass Hb<sub>mass<\/sub> to natural altitude training, Hb<sub>mass<\/sub>, erythropoietin [EPO], reticulocytes, ferritin and soluble transferrin receptor (sTfR) were measured in 13 elite cyclists during, and 10 days after, 3 weeks of sea level (n=5) or altitude (n=8, 2760 m) training. Mean Hb<sub>mass<\/sub>, with a typical error of \u223c2%, increased during the first 11 days at altitude (mean \u00b1 standard deviation 2.9 \u00b1 2.0%) and was 3.5 \u00b1 2.5% higher than baseline after 19 days. [EPO] increased 64.2 \u00b1 18.8% after 2 nights at altitude but was not different from baseline after 12 nights. Hb<sub>mass<\/sub> and [EPO] did not increase in sea level. Reticulocytes (%) were slightly elevated in altitude at Days 5 and 12 (18.9 \u00b1 17.7% and 20.4 \u00b1 25.3%), sTfR was elevated at Day 12 (18.9 \u00b1 15.0%), but both returned to baseline by Day 20. Hb<sub>mass<\/sub> and [EPO] decreased on descent to sea level while ferritin increased. The mean increase in Hb<sub>mass<\/sub> observed after 11 days (\u223c300 h) of altitude training was beyond the measurement error and consistent with the mean increase after 300 h of simulated live high: train low altitude. Our results suggest that in elite cyclists, Hb<sub>mass<\/sub> increases progressively with 3 weeks of natural altitude exposure, with greater increases expected as exposure persists.<\/p>\n<p>Scand J Med Sci Sports. 2012 Feb;22(1):95-103.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":18268,"template":"","categories":[763,872,862],"tags":[192],"class_list":["post-2686","attivita-scientifica","type-attivita-scientifica","status-publish","has-post-thumbnail","hentry","category-ciclismo-en","category-cycling-2-en","category-monitoring-en","tag-aldo-sassi-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Time course of the hemoglobin mass response to natural altitude training in elite endurance cyclists - Mapei Sport<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Time course of the hemoglobin mass response to natural altitude training in elite endurance cyclists - Mapei Sport\" \/>\n<meta property=\"og:description\" content=\"Garvican L1,2, Martin D, 1 Quod M1, Stephens B1, Sassi A3, Gore C1 1, Department of Physiology, Australian Institute of Sport, Canberra, Australia;2, Exercise Physiology Laboratory, Flinders University,Bedford Park, South Australia, Australia; 3, Human Performance Lab, Mapei Sport Research Center, Castellanza, Italy To determine the time course of hemoglobin mass Hbmass to natural altitude training, [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Mapei Sport\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/MapeiSport\/\" \/>\n<meta property=\"article:modified_time\" content=\"2023-03-14T11:38:15+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.mapeisport.it\/wp-content\/uploads\/2012\/06\/ScandinavianJSM.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"402\" \/>\n\t<meta property=\"og:image:height\" content=\"528\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@MapeiSport\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2\/\",\"url\":\"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/time-course-of-the-hemoglobin-mass-response-to-natural-altitude-training-in-elite-endurance-cyclists-2\/\",\"name\":\"Time course of the hemoglobin mass response to natural altitude training in elite endurance cyclists - 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