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    <item>
      <title>Katecholamin-, Blutlaktat- und Atemreaktion auf mehrfache Rad-Lauf-Blöcke</title>
      <pubDate>Sat, 01 Jan 2000 20:53:43 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/3032141</link>
      <guid>https://sponet.de/sponet/Record/3032141</guid>
      <author>Hue, O.</author>
      <author>Le Gallais, D.</author>
      <author>Boussana, A.</author>
      <author>Galy, O.</author>
      <author>Chamari, K.</author>
      <author>Mercier, B.</author>
      <author>Prefaut, C.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Triathlon</dc:subject>
      <dc:subject>Trainingsmethode</dc:subject>
      <dc:subject>Radsport</dc:subject>
      <dc:subject>Langstreckenlauf</dc:subject>
      <dc:subject>Hormon</dc:subject>
      <dc:subject>Laktat</dc:subject>
      <dc:subject>Atmung</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Hue, O.</dc:creator>
      <dc:creator>Le Gallais, D.</dc:creator>
      <dc:creator>Boussana, A.</dc:creator>
      <dc:creator>Galy, O.</dc:creator>
      <dc:creator>Chamari, K.</dc:creator>
      <dc:creator>Mercier, B.</dc:creator>
      <dc:creator>Prefaut, C.</dc:creator>
      <content:encoded><![CDATA[Zielstellung:
Untersuchung, ob die physiologische Reaktionen während des Laufteils bei wiederholter Rad-Lauf-Belastung die gleichen sind wie während des Laufteils bei einer Rad-Lauf-Belastung.
Probanden/Methoden:
13 männliche Triathleten  absolvierten nacheinander vier Labortests:
1. ansteigender Laufbandtest, 2. ansteigender Radfahrtest, 3. 30 min Radfahren und 20 min Laufen (C-R), 4. Fünf Wiederholungen von 6 min Radfahren und 4 min Laufen (X-CR).
Während C-R und X-CR wurden venöse Blutproben zur Bestimmung von Laktat, Adrenalin und Noradrenalin entnommen und während allen Versuchen Atemwerte aller Minuten bestimmt.
Ergebnisse:
1. Die kardiorespiratorischen Reaktionen während des Laufens  waren in den C-R- und X-CR-Versuchen gleich.
2. Die Laktatspiegel waren in beiden Tests gleich.
3. Adrenalin war bei X-CR höher als bei C-R.
4. Noradrenalin war in beiden Versuchen gleich mit Ausnahme der ersten Lauf-Rad-Belastung bei X-CR.
Schlussfolgerungen:
1. Mehrfaches Blocktraining ist eine gute Methode, die spezifischen Adaptationen, die für die Rad-Lauf-Belastung  und insbesondere für den Rad-Lauf-Übergang erforderlich sind, zu stimulieren.
2. Mehrfaches Blocktraining scheint eine höhere Katecholaminreaktion zu bewwirken.]]></content:encoded>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Katecholamin-, Blutlaktat- und Atemreaktionen auf mehrfache Rad-Lauf-Blöcke</title>
      <pubDate>Sat, 01 Jan 2000 20:53:43 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4004677</link>
      <guid>https://sponet.de/sponet/Record/4004677</guid>
      <author>Hue, O.</author>
      <author>Le Gallais, D.</author>
      <author>Boussana, A.</author>
      <author>Galy, O.</author>
      <author>Chamari, K.</author>
      <author>Mercier, B.</author>
      <author>Prefaut, C.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Triathlon</dc:subject>
      <dc:subject>Trainingsmethode</dc:subject>
      <dc:subject>Training</dc:subject>
      <dc:subject>Radsport</dc:subject>
      <dc:subject>Lauf</dc:subject>
      <dc:subject>Laktat</dc:subject>
      <dc:subject>Hormon</dc:subject>
      <dc:subject>Atmung</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Hue, O.</dc:creator>
      <dc:creator>Le Gallais, D.</dc:creator>
      <dc:creator>Boussana, A.</dc:creator>
      <dc:creator>Galy, O.</dc:creator>
      <dc:creator>Chamari, K.</dc:creator>
      <dc:creator>Mercier, B.</dc:creator>
      <dc:creator>Prefaut, C.</dc:creator>
      <content:encoded><![CDATA[Purpose and Methods: This study was designed to determine whether the physiological responses elicited during the run part of repeated bouts of cycle-run exercise are similar to those required during the run segment of a cycle-run succession. Thirteen male triathletes underwent four successive laboratory trials: 1) an incremental treadmill test, 2) an incremental cycle test, 3) 30 min of cycling followed by 20 min of running (C-R), and 4) five repeated bouts of 6 min of cycling and 4 min of running (X-CR). During the C-R and X-CR trials, venous blood samples were obtained to measure lactate, epinephrine and norepinephrine concentrations. During all trials, ventilatory data were collected every min using an automated breath-by-breath system. Results: The results showed that 1) the cardiorespiratory responses observed during running were similar in the X-CR and C-R trials, 2) the lactate concentration was similar in both trials, 3) the epinephrine concentration was greater (277.9± 11.9 vs 169.8 ± 86.7 pg.mL-1, P < 0.025) in X-CR than in C-R, and 4) the norepinephrine concentration was similar in both trials, except at the first cycle-run succession (T1) of X-CR. Conclusion: We concluded that 1) multi-block training is a good method to stimulate the specific adaptations required for the cycle-run succession, and particularly for the cycle-run transition, and 2) multi-block training seems to induce a greater catecholaminergic response, which may be due to a combination of an inherent effect of this type of training and the triathletes' relative lack of experience with it. In any case, the efficacy of the multi-block model needs to be more thoroughly evaluated over the course of a longer-term training program. ]]></content:encoded>
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