Effects of iron supplementation in female athletes with low serum ferritin concentration
Deutscher übersetzter Titel: | Auswirkungen von Eisensupplementierung bei Sportlerinnen mit niedrigen Ferritinkonzentrationen im Serum |
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Autor: | Fogelholm, M.; Jaakkola, L.; Lampisjaervi, T. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 13 (1992), 2, S. 158-162, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2007-1021248 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199208057253 |
Quelle: | BISp |
Abstract
Low serum ferritin concentrations are commonly found in female athletes. By studying the effects of an 8-week iron or placebo supplementation in 31 female athletes (aged 17 - 31 years), with an initial serum ferritin concentration </= 25 micro-g/l and blood hemoglobin 120 g/l, we investigated whether low serum ferritin values hinder aerobic performance. Serum ferritin concentration increased from 14 (25th and 75th percentile: 11, 21) to 26 (18, 36) micro-g/l in the iron-supplemented group, but remained at a low 11 (9, 17) micro-g/l in the placebo group (group difference after supplementation: p=0.001). Before supplementation, blood hemoglobin concentration was not different in the two groups. After supplementation, however, the concentration in the iron group was 139 (135, 144) g/l and 128 (126, 134) g/l in the placebo group (group difference: p=0.001). Iron supplementation did not affect blood lactate concentration or VO2max during an incremental ergometer test. Hence, aerobic performance was not impaired in nonanemic female athletes with serum ferritin 25 micro-g/l. Verf.-Referat