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    <item>
      <title>Aktive Wiederherstellung und Leukozytenzahl, freie Fettsäuren und Hormone nach Belastung bei Ausdauersportlern</title>
      <pubDate>Mon, 01 Jan 2001 02:24:44 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/3032741</link>
      <guid>https://sponet.de/sponet/Record/3032741</guid>
      <author>Wigernaes, I.</author>
      <author>Hostmark, A. T.</author>
      <author>Stromme, S. B.</author>
      <author>Kierulf, P.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Ausdauer</dc:subject>
      <dc:subject>Belastung</dc:subject>
      <dc:subject>Wiederherstellung</dc:subject>
      <dc:subject>Blut</dc:subject>
      <dc:subject>Zelle</dc:subject>
      <dc:subject>Fettsäure</dc:subject>
      <dc:subject>Hormon</dc:subject>
      <dc:subject>Stoffwechsel</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Wigernaes, I.</dc:creator>
      <dc:creator>Hostmark, A. T.</dc:creator>
      <dc:creator>Stromme, S. B.</dc:creator>
      <dc:creator>Kierulf, P.</dc:creator>
      <content:encoded><![CDATA[Es wurde untersucht, wie eine aktive Erholung (AR) über 15 min bei 50 % der VO2max nach 60 min Berganlaufen bei 83 % der VO2max die freien Fettsäuren im Plasma (FFA), Lymphozyten-, Neutrophilen-, Granulozyten- und Monzytenzahl sowie Adrenalin, Noradrenalin, Insulin und Kortisol bis 120 min nach Belastung beeinflussen. An der Untersuchung nahmen 13 Ausdauersportler (24,2 +/- 3,7 Jahre, VO2max 69,2 +/- 6,8 ml/min/kg) teil. Die Wiederherstellung erfolgte entweder als AR oder in Ruhe in Rückenlage (RR).
Ergebnisse:
Im Vergleich zu RR kompensierte die AR stark den rapiden Anstieg in den FFA 5 min nach Belastung. Die Abfälle in der Neutrophilen- und Monozytenzahl nach Belastung wurden bei AR aufgehoben und die Zellenzahl blieb während des Untersuchungszeitraumsüber den Ruhewerten. Die AR kompensierte gleichfalls den rapiden Rückgang der Hormonspiegel in Richtung Ausgangsniveau.]]></content:encoded>
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    <item>
      <title>Aktive Wiederherstellung und Leukozytenzahl, freie Fettsäuren und Hormone nach Belastung bei Ausdauersportlern</title>
      <pubDate>Mon, 01 Jan 2001 02:24:44 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4005535</link>
      <guid>https://sponet.de/sponet/Record/4005535</guid>
      <author>Wigernæs, I.</author>
      <author>Høstmark, A. T.</author>
      <author>Strømme, S. B.</author>
      <author>Kierulf, P.</author>
      <author>Birkeland, K.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Wiederherstellung</dc:subject>
      <dc:subject>Stoffwechsel</dc:subject>
      <dc:subject>Immunität</dc:subject>
      <dc:subject>Ausdauer</dc:subject>
      <dc:subject>Hormon</dc:subject>
      <dc:subject>Fettsäure</dc:subject>
      <dc:subject>Blut</dc:subject>
      <dc:subject>Belastung</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Wigernæs, I.</dc:creator>
      <dc:creator>Høstmark, A. T.</dc:creator>
      <dc:creator>Strømme, S. B.</dc:creator>
      <dc:creator>Kierulf, P.</dc:creator>
      <dc:creator>Birkeland, K.</dc:creator>
      <content:encoded><![CDATA[Strenuous endurance exercise in fasted subjects is accompanied by increased plasma levels of catecholamines, leucocytosis, low insulin, and elevated plasma free fatty acids (FFA). Immediately after such exercise, plasma FFA may rise to high and potentially harmful levels, whereas the white blood cell count (WBCC) rapidly decreases towards or below baseline values. The present work investigated how active recovery (AR) for 15 min at 50% of maximal oxygen consumption ($\dot V{\rm O}_{{\rm 2max}} $), after 60 min of uphill running at 83% of  $\dot V{\rm O}_{{\rm 2max}} $, influenced plasma FFA, lymphocyte, neutrophil, granulocyte, and monocyte count, as well as adrenaline, noradrenaline, insulin and cortisol concentrations until 120 min post-exercise. Thirteen endurance athletes participated in the study [24.2 (3.7) years, 1.82 (0.06) m, 76.7 (7.9) kg and $\dot V{\rm O}_{{\rm 2max}} $ 69.2 (6.8) ml min-1 kg-1]. In a randomized order, the subjects completed two sets of strenuous workouts, followed by either AR or complete rest in the supine position (RR). Compared with RR, AR strongly counteracted the rapid increase in plasma FFA 5 min post-exercise. The decreases in neutrophil and monocyte counts post-exercise were nullified by AR, and the cell count stayed above resting values throughout the observation period. AR also counteracted the rapid return of hormone concentration towards baseline levels. It would appear that active recovery at low intensity after strenuous exercise can maintain sufficient adrenergic activation to counteract the post-exercise drop in WBCC. However, in spite of keeping the catecholamine concentration high and insulin levels low, AR can also maintain a low plasma FFA concentration, probably because of the continued use of FFA in muscle. It remains to be elucidated whether the observed high FFA and low WBCC values after RR have a negative effect on health. If so, AR could be a preventive measure. 
Volume 84 Issue 4 (2001) pp 358-366]]></content:encoded>
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    </item>
    <item>
      <title>Aktive Wiederherstellung und Leukozytenzahl, freie Fettsäuren und Hormone nach Belastung bei Ausdauersportlern</title>
      <pubDate>Mon, 01 Jan 2001 02:24:44 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4005366</link>
      <guid>https://sponet.de/sponet/Record/4005366</guid>
      <author>Wigernæs, I.</author>
      <author>Høstmark, A. T.</author>
      <author>Strømme, S. B.</author>
      <author>Kierulf, P.</author>
      <author>Birkeland, K.</author>
      <dc:format>elektronische Publikation</dc:format>
      <dc:subject>Ausdauer</dc:subject>
      <dc:subject>Belastung</dc:subject>
      <dc:subject>Blut</dc:subject>
      <dc:subject>Fettsäure</dc:subject>
      <dc:subject>Hormon</dc:subject>
      <dc:subject>Wiederherstellung</dc:subject>
      <dc:format>elektronische Publikation</dc:format>
      <dc:creator>Wigernæs, I.</dc:creator>
      <dc:creator>Høstmark, A. T.</dc:creator>
      <dc:creator>Strømme, S. B.</dc:creator>
      <dc:creator>Kierulf, P.</dc:creator>
      <dc:creator>Birkeland, K.</dc:creator>
      <content:encoded><![CDATA[Strenuous endurance exercise in fasted subjects is accompanied by increased plasma levels of catecholamines, leucocytosis, low insulin, and elevated plasma free fatty acids (FFA). Immediately after such exercise, plasma FFA may rise to high and potentially harmful levels, whereas the white blood cell count (WBCC) rapidly decreases towards or below baseline values. The present work investigated how active recovery (AR) for 15 min at 50% of maximal oxygen consumption ( VO2max(, after 60 min of uphill running at 83% of VO2max, influenced plasma FFA, lymphocyte, neutrophil, granulocyte, and monocyte count, as well as adrenaline, noradrenaline, insulin and cortisol concentrations until 120 min post-exercise. Thirteen endurance athletes participated in the study [24.2 (3.7) years, 1.82 (0.06) m, 76.7 (7.9) kg and VO2max 69.2 (6.8) ml min-1 kg-1]. In a randomized order, the subjects completed two sets of strenuous workouts, followed by either AR or complete rest in the supine position (RR). Compared with RR, AR strongly counteracted the rapid increase in plasma FFA 5 min post-exercise. The decreases in neutrophil and monocyte counts post-exercise were nullified by AR, and the cell count stayed above resting values throughout the observation period. AR also counteracted the rapid return of hormone concentration towards baseline levels. It would appear that active recovery at low intensity after strenuous exercise can maintain sufficient adrenergic activation to counteract the post-exercise drop in WBCC. However, in spite of keeping the catecholamine concentration high and insulin levels low, AR can also maintain a low plasma FFA concentration, probably because of the continued use of FFA in muscle. It remains to be elucidated whether the observed high FFA and low WBCC values after RR have a negative effect on health. If so, AR could be a preventive measure. ]]></content:encoded>
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