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    <item>
      <title>Antioxidanzstatus und oxidativer Stress bei Alpine Skiläufern der Eliteklasse</title>
      <pubDate>Mon, 01 Jan 2001 16:13:50 +0100</pubDate>
      <link>https://www.sponet.de/sponet/Record/3032946</link>
      <guid>https://www.sponet.de/sponet/Record/3032946</guid>
      <author>Subudhi, A. W.</author>
      <author>Davis, S. L.</author>
      <author>Kipp, R. W.</author>
      <author>Askew, E. W.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>alpiner Skisport</dc:subject>
      <dc:subject>Antioxidans</dc:subject>
      <dc:subject>Fett</dc:subject>
      <dc:subject>Stoffwechsel</dc:subject>
      <dc:subject>Enzym</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Subudhi, A. W.</dc:creator>
      <dc:creator>Davis, S. L.</dc:creator>
      <dc:creator>Kipp, R. W.</dc:creator>
      <dc:creator>Askew, E. W.</dc:creator>
      <content:encoded><![CDATA[Ziel der Felduntersuchung war die Bewertung des Antioxidanzstatus und von Kennzeichen oxidativer Schädigung bei 12 Mitglieder der US-Nationalmannschaft im Alpine Skilauf der Männer während eines 10-tägigen Sommertrainingslagers. Blutproben wurden in Ruhe und nach Belastung (a. vor dem Training/PRE, b. nach  2 Tagen Landtraining/LAND, c. nach 4 Tagen Schneetraining/SNOW 10) entnommen.
Ergebnisse:
Antioxidanzstatus: TEAC (Trolox equivalent antioxidant capacity) und UA (Harnsäure)  waren bei LAND erhöht im Vergleich zu PRE und SNOW. Die Höchstwerte von Alpha-Tocopherol, Gamma-Tocopherol und SOD (Superoxid Dismutase) waren bei PRE zu verzeichnen und sanken während des Trainingslagers. GHS (Glutathion) bei LAND war signifikant niedriger im Vergleich zu PRE. 
Oxidativer Stress: LOOH (Lipidhydroperoxid) war bei SNOW niedriger im Vergleich zu PRE und LAND.
Schlussfolgerung: Der Antioxidanzstatus von Alpinen Skiläufern der Eliteklasse kann über eine intensive Trainingsperiode abnehmen. Erhöhungen der Kennziffern für oxidativen Stress waren nicht nachweisbar.]]></content:encoded>
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    <item>
      <title>Antioxidanzstatus und oxidativer Stress bei alpinen Skiläufern der Eliteklasse</title>
      <pubDate>Mon, 01 Jan 2001 16:13:50 +0100</pubDate>
      <link>https://www.sponet.de/sponet/Record/4005427</link>
      <guid>https://www.sponet.de/sponet/Record/4005427</guid>
      <author>Subudhi, A. W.</author>
      <author>Davis, S. L.</author>
      <author>Kipp, R. W.</author>
      <author>Askew, E. W.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Stoffwechsel</dc:subject>
      <dc:subject>Fett</dc:subject>
      <dc:subject>Antioxidans</dc:subject>
      <dc:subject>alpiner Skisport</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Subudhi, A. W.</dc:creator>
      <dc:creator>Davis, S. L.</dc:creator>
      <dc:creator>Kipp, R. W.</dc:creator>
      <dc:creator>Askew, E. W.</dc:creator>
      <content:encoded><![CDATA[The goal of this field study was to assess antioxidant status and markers of oxidative damage in elite alpine ski racers during routine training. Subjects included 12 members of the U.S. MenÕs Alpine Ski Team attending a 10-day summer training camp. Blood draws were collected at rest and after exercise: (a) prior to training, (b) following 2 days of dry land training, and (c) after 4 days of on-snow skiing. Seven measures of antioxidant status were determined using colorimetric and HPLC methods (Trolox- equivalent antioxidant capacity, uric acid, a-tocopherol, g-tocopherol, total glutathione, cytosolic glutathione peroxidase, and superoxide dismutase). Oxidative stress was assessed using 2 markers of lipid peroxidation (malondialdehyde and lipid hydroperoxides) and 2 markers of protein oxidation (carbonylated total proteins and carbonylated hemoglobin). The results of this study suggest that antioxidant status of elite alpine skiers may decline over a period of intense training. However, elevations in markers of oxidative stress were not evident.]]></content:encoded>
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