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    <title>Ergebnis für Versionen - 4016247</title>
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    <item>
      <title>Bewertung des Energiebedarfs für das neue olympische Windsurfbrett Neilpryde RS:X®</title>
      <pubDate>Mon, 01 Jan 2007 03:28:41 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4021853</link>
      <guid>https://sponet.de/sponet/Record/4021853</guid>
      <author>Castagna, O.</author>
      <author>Pardal, C. V.</author>
      <author>Brisswalter, J.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Segeln</dc:subject>
      <dc:subject>Windsurfing</dc:subject>
      <dc:subject>Energiestoffwechsel</dc:subject>
      <dc:subject>Stoffwechsel</dc:subject>
      <dc:subject>Biomechanik</dc:subject>
      <dc:subject>O2-Aufnahme</dc:subject>
      <dc:subject>Umwelt</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Castagna, O.</dc:creator>
      <dc:creator>Pardal, C. V.</dc:creator>
      <dc:creator>Brisswalter, J.</dc:creator>
      <content:encoded><![CDATA[The aim of this study was to evaluate the energy demands of sailing the new Neilpryde RS:X® Olympic windsurf board. Ten skilled male subjects performed an exhaustive incremental treadmill test to determine their maximal physiological parameters. Thereafter, four tests were performed in a randomised order using two wind conditions, light [2-4 ms-1 (4-8 knots)] and strong: [9-11 ms-1(16-22 knots)]. Oxygen consumption ( \ifmmode\expandafter\dot\else\expandafter\.\fi{V}{\text{O}}_{2} , ml min-1 kg-1), blood lactate concentration ([la]b, mmol l-1), and time spent pumping (% total time) were recorded during 10 min of up-wind leg and during 6 min of down-wind leg. The results indicate that sailing on RS:X is associated with a high level of energy demand using both aerobic and anaerobic pathways whatever the wind conditions. During the down-wind leg, \ifmmode\expandafter\dot\else\expandafter\.\fi{V}{\text{O}}_{2} (ml min-1 kg-1), [la]b (mmol l-1), and time spent pumping (% total time) values for the light and strong wind conditions were 56.5 ± 5.9 versus 55.5 ± 3.6; 10.2 ± 1.5 versus 9.6 ± 2.3, and 69 ± 5 versus 64 ± 2%, respectively. In contrast, during up-wind leg the same parameters for light and strong wind were 53.9 ± 4.5 versus 40.4 ± 7.2; 9.7 ± 2.8 versus 5.0 ± 2.7 and 66 ± 3 versus 37 ± 8%, respectively. During the up-wind leg with strong wind conditions, less time was spent pumping (p < 0.05), mean oxygen consumption values were close to 60% \ifmmode\expandafter\dot\else\expandafter\.\fi{V}{\text{O}}_{{2\max }} , and post-exercise blood lactate was less than 50% maximal lactate concentration. These results could be related to the time spent in pumping action, involving whole body activity. When sailing with the RS:X board, the physiological demand seems to be higher than with the previous official Olympic windsurf board [Mistral One Design® (MOD)]. This difference could be mainly attributed to the specific biomechanical constraints induced by each board characteristic. ]]></content:encoded>
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    <item>
      <title>Bewertung der energetischen Anforderungen des neuen olympischen Windsurfingbretts: Neilpryde RS:X</title>
      <pubDate>Mon, 01 Jan 2007 03:28:41 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4016247</link>
      <guid>https://sponet.de/sponet/Record/4016247</guid>
      <author>Castagna, O.</author>
      <author>Vaz Pardal, M. C.</author>
      <author>Brisswalter, J.</author>
      <dc:format>Kongressband, Tagungsbericht</dc:format>
      <dc:subject>Segeln</dc:subject>
      <dc:subject>Windsurfing</dc:subject>
      <dc:subject>Leistungsstruktur</dc:subject>
      <dc:subject>Energie</dc:subject>
      <dc:subject>Energiestoffwechsel</dc:subject>
      <dc:subject>O2-Aufnahme</dc:subject>
      <dc:subject>Laktat</dc:subject>
      <dc:format>Kongressband, Tagungsbericht</dc:format>
      <dc:creator>Castagna, O.</dc:creator>
      <dc:creator>Vaz Pardal, M. C.</dc:creator>
      <dc:creator>Brisswalter, J.</dc:creator>
      <content:encoded><![CDATA[The aim of this study was to evaluate the energy demands  f sailing the new Neilpryde RS:X R Olympic windsurf board. Ten skilled male subjects performed an exhausted incremental treadmill test to determine their maximal physiological parameters. Thereafter, four tests in a randomed order were performed using two wind conditions, light [2 to 4 ms-1 (4 to 8 knots)] and strong: [9 to 11 ms-1(16 to 22 knots)]. Oxygen consumption (V.O2, ml.min-1.kg-1), blood lactate concentration ([la]b,mmol.l-1), and time spent for pumping (% total time) were recorded during 10 minutes of up-wind leg and during 6 minutes of down-wind leg. Results indicate that sailing on RS:X is associated with a high level of energy demand using both aerobic and anaerobic pathways whatever the wind conditions. During downwind leg, V.O2 (ml.min-1.kg-1), [la]b (mmol.l-1) and time spent for pumping (% total time) values were for the light and strong wind conditions, 56.5 + 5.9 vs. 55.5 + 3.6; 10.2 + 1.5 vs. 9.6 ± 2.3 and 69 ± 5 % vs. 64 ± 2 %, respectively. In contrast, during up-wind leg the same parameters for light and strong wind were 53.9 + 4.5 vs. 40.4 + 7.2; 9.7 + 2.8 vs. 5.0 + 2.7 and 66 + 3 % vs. 37 + 8 %, respectively. During up-wind leg with strong wind conditions less time was spent in pumping (p<0.05), mean oxygen consumption values were close to 60% V.O2max, and post exercise blood lactate was lower than 50% maximal lactate concentration. These results could be related to the time spent in pumping action, involving the whole body activity When sailing with the RS:X board, physiological demand seems to be higher than with the previous official Olympic windsurf board (Mistral One Design R (MOD)). This difference could be mainly attributed to the specific biomechanical constraints induced by each board characteristics.]]></content:encoded>
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