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    <item>
      <title>Die Auswirkungen kompensatorischer Beschleunigung auf die Oberkörperkraft und -leistung bei College-Fußballern</title>
      <pubDate>Fri, 01 Jan 1999 01:55:24 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4004642</link>
      <guid>https://sponet.de/sponet/Record/4004642</guid>
      <author>Jones, G.</author>
      <author>Hunter, G.</author>
      <author>Fleisig, G.</author>
      <author>Escamilla, R.</author>
      <author>Lemak, L.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Beschleunigung</dc:subject>
      <dc:subject>Fußball</dc:subject>
      <dc:subject>Kraft</dc:subject>
      <dc:subject>Training</dc:subject>
      <dc:subject>Trainingsmethode</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Jones, G.</dc:creator>
      <dc:creator>Hunter, G.</dc:creator>
      <dc:creator>Fleisig, G.</dc:creator>
      <dc:creator>Escamilla, R.</dc:creator>
      <dc:creator>Lemak, L.</dc:creator>
      <content:encoded><![CDATA[The purpose of this study was to compare the effects of maximum concentric acceleration training versus traditional upper-body training on the development of strength and power of collegiate NCAA Division 1AA football players. Power was tested with a seated medicine ball throw (n = 30) and a force platform plyometric push-up test (n = 24). Upper-body strength was tested by using a bench press with 1 repetition maximum (1RM) (n = 30). All players were on an identical off-season weight-training program. The control group performed exercises with conventional concentric velocity, and the experimental group performed the concentric phase of each repetition as rapidly as possible. Two-way repeated-measures analysis of variance was used to determine training and group  ifferences. Significant training effects for all strength and power measures indicated that both groups increased strength and power. Significant training by group interaction indicates the experimental group increased significantly more than the control group in the bench press (+9.85 kg vs. +5.00 kg) and throw (+0.69 m vs. +0.22 m). Significance was not reached for any of the training by group interactions for force platform variables (amortization time 0.46 seconds for the experimental group vs. 0.22 seconds for the control
group; average power was +365 W for the experimental group vs. +108 W for the control group). The results of this study support the use of maximal acceleration of concentric contractions by collegiate football players during upper-body strength and power training. ]]></content:encoded>
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    <item>
      <title>Auswirkungen der kompensatorischen Akzeleration auf Oberkörperkraft und -Schnellkraft bei College-Football-Spielern</title>
      <pubDate>Fri, 01 Jan 1999 01:55:24 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/3030850</link>
      <guid>https://sponet.de/sponet/Record/3030850</guid>
      <author>Jones, K.</author>
      <author>Hunter, G.</author>
      <author>Fleisig, G.</author>
      <author>Escamilla, R.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Trainingsmethode</dc:subject>
      <dc:subject>American Football</dc:subject>
      <dc:subject>Spielsportart</dc:subject>
      <dc:subject>Kraft</dc:subject>
      <dc:subject>Schnellkraft</dc:subject>
      <dc:subject>Training</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Jones, K.</dc:creator>
      <dc:creator>Hunter, G.</dc:creator>
      <dc:creator>Fleisig, G.</dc:creator>
      <dc:creator>Escamilla, R.</dc:creator>
      <content:encoded><![CDATA[Ziel der Studie war der Vergleich der Auswirkungen eines Trainings mittels maximaler konzentrischer Akzeleration im Vergleich zu traditionellem Oberkörper-Kraft-Training auf die Entwicklung von Kraft und Schnellkraft bei College-Footballern der NCAA.
Eine Kontrollgruppe absolvierte die Übungen mit konventioneller konzentrischer Geschwindigkeit, die Experimentalgruppe führte die konzentrische Phase jeder Wiederholung so schnell wie möglich aus.  
Ergebnisse:
In beiden Gruppen wurden Kraft und Schnellkraft signifikant verbessert. Die Experimentalgruppe hatte signifikant höhere Leistungssteigerungen beim Bankdrücken und Wurf. Keine Signifikanz wurde bei den Plattform-Variablen ermittelt.
Die Ergebnisse der Studie unterstützen die Version der Methode der maximalen Beschleunigung konzentrischer Kontraktionen im Oberkörperkraft- und -schnellkrafttraining von College-Footballern.]]></content:encoded>
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