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    <item>
      <title>VO2max und Hämoglobinmasse von trainierten Sportlern während hoch intensivem Training</title>
      <pubDate>Wed, 01 Jan 1997 06:01:30 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4001331</link>
      <guid>https://sponet.de/sponet/Record/4001331</guid>
      <author>Gore, C. J.</author>
      <author>Burge, C. M.</author>
      <author>Hahn, A. G.</author>
      <author>Telford, R. D.</author>
      <dc:format>Forschungsergebnis</dc:format>
      <dc:subject>Blut</dc:subject>
      <dc:subject>Hochleistungssport</dc:subject>
      <dc:subject>Höhentraining</dc:subject>
      <dc:subject>Leistungssport</dc:subject>
      <dc:format>Forschungsergebnis</dc:format>
      <dc:creator>Gore, C. J.</dc:creator>
      <dc:creator>Burge, C. M.</dc:creator>
      <dc:creator>Hahn, A. G.</dc:creator>
      <dc:creator>Telford, R. D.</dc:creator>
      <content:encoded><![CDATA[The correlation between relative haemoglobin mass (Hb mass, g x kg[-1]) and relative maximal oxygen consumption (VO2max, ml x kg(-1) x min[-1]) in 62 trained athletes (33 male runners, 12 male rowers and 17 female rowers) with national and/ or international competitive experience was examined. The correlation between Hb mass and VO2max was highest for the female rowers (n=17, r=0.92, p<0.0001), lower for the male rowers (n = 12, r=0.79, p < 0.005) and lowest for the male runners (n=33, r=0.48, p = 0.005). These results suggest that, within an athletic sample, Hb mass may be used to estimate potential aerobic power. In a second series of
experiments, Hb mass was measured before and after three different training programs in sub-sets of the subjects used in the earlier study. Hb mass did not change following 12 weeks of intense rowing training, 4 weeks of heat training (32 degrees C), or 4 weeks of medium-altitude training (1740 m). The corresponding increases in VO2max were 7.8%, no change and 2.1 %, respectively. These results suggest that heat or altitude training does not increase Hb mass in trained athletes. Previous studies that demonstrate increases in total red cell volume following altitude acclimatization used subjects with only modest aerobic power, whereas the present study
used trained subjects. It is concluded that trained athletes with erythrocythemic hypervolemia have limited capability to increase further either total red cell volume or Hb mass.]]></content:encoded>
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    <item>
      <title>VO2max und Hämoglobinmasse von trainierten Sportlern während hochintensiven Trainings</title>
      <pubDate>Wed, 01 Jan 1997 06:01:30 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/3027141</link>
      <guid>https://sponet.de/sponet/Record/3027141</guid>
      <author>Gore, C. J.</author>
      <author>Hahn, A. A. G.</author>
      <author>Burge, C. M.</author>
      <author>Telford, R. D.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Biochemie</dc:subject>
      <dc:subject>Ausdauer</dc:subject>
      <dc:subject>Training</dc:subject>
      <dc:subject>Temperatur</dc:subject>
      <dc:subject>Klima</dc:subject>
      <dc:subject>Adaptation</dc:subject>
      <dc:subject>Höhentraining</dc:subject>
      <dc:subject>Blut</dc:subject>
      <dc:subject>Farbe</dc:subject>
      <dc:subject>O2-Aufnahme</dc:subject>
      <dc:subject>maximal</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Gore, C. J.</dc:creator>
      <dc:creator>Hahn, A. A. G.</dc:creator>
      <dc:creator>Burge, C. M.</dc:creator>
      <dc:creator>Telford, R. D.</dc:creator>
      <content:encoded><![CDATA[Zielstellung: Untersuchung der Beziehung zwischen relativer Hämoglobinmasse (Hb-Masse, g/kg) und relativer VO2max bei Hochleistungssportlern.
Probanden: 62 Sportler (33 männliche Läufer, 12 männliche Ruderer und 17 Ruderinnen mit nationaler und/oder internationaler Wettkampferfahrung.
Ergebnisse:
Die Beziehung zwischen Hb-Masse und VO2max war bei den Ruderinnen am höchsten, niedriger bei den männlichen Ruderern und am niedrigsten bei den männlichen Läufern. Es wird geschlußfolgert, daß innerhalb einer Sportlerpopulation die Hb-Masse zur Bewertung der potentiellen aeroben Leistung verwendet werden kann.

In einer zweiten Untersuchungsserie wurde die Hb-Masse vor und nach 3 verschiedenen Trainingsprogrammen bei drei Untergruppen aus der vorangegangenen Untersuchung untersucht. Die Hb-Masse veränderte sich nach 12 Wochen intensivem Rudertraining, 4 Wochen Training unter Hitze (32°) oder 4 Wochen  mittlerem Höhentraining (1740m) nicht. Die entsprechenden Anstiege in der VO2max betrugen 7.8%, keine Veränderung und 2,1%. 
Es wird der Schluß gezogen, daß Training unter Hitze oder Höhentraining die Hb-Masse von trainierten Sportlern nicht erhöht.]]></content:encoded>
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