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    <item>
      <title>Kardiovaskuläre und metobolische Beanspruchung der Vorwärts-, Rückwärts- und Seitwärtsbewegung</title>
      <pubDate>Thu, 01 Jan 1998 04:18:05 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4001721</link>
      <guid>https://sponet.de/sponet/Record/4001721</guid>
      <author>Williford, H. N.</author>
      <author>Olson, M. S.</author>
      <author>Gauger, S.</author>
      <author>Duey, W. J.</author>
      <author>Blessing, D. L.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Tennis</dc:subject>
      <dc:subject>Energiestoffwechsel</dc:subject>
      <dc:subject>Bewegung</dc:subject>
      <dc:subject>Analyse</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Williford, H. N.</dc:creator>
      <dc:creator>Olson, M. S.</dc:creator>
      <dc:creator>Gauger, S.</dc:creator>
      <dc:creator>Duey, W. J.</dc:creator>
      <dc:creator>Blessing, D. L.</dc:creator>
      <content:encoded><![CDATA[PURPOSE: The purpose of this study was to compare the metabolic and cardiovascular responses of movement in forward (FM), backward (BM), and lateral (LM) directions. 
METHODS: Thirteen athletes with the following characteristics (mean +/- SD) were evaluated: age 21+/-3 yr, height 172.0+/-9.0 cm, weight 62.92+/-9.05 kg, and VO2max 54.13+/-7.42 mL x kg(-1) x min(-1). Subjects were evaluated at 80.45 and 134.08 m x min(-1). A repeated measures ANOVA was used for statistical analysis (P < 0.05). 
RESULTS: At 80.45 m x min(-1), the following respective VO2 mL x kg(-1) x min(-1) and heart rate (HR) beats x min(-1) responses were: FM = 12.42+/-2.29, 113+/-10; BM = 15.95+/-2.45, 132+/-16; and LM = 22.10+/-4.76, 140+/-15. Both VO2 and HR were significantly different between conditions: LM > BM > FM. At 134.08 m x min(-1), the following respective VO2 and HR responses were: FM = 27.15+/-2.51, 146+/-7; BM = 31.33+/-5.77, 168+/-11; and LM = 32.58+/-5.74, 169+/-10. At 134.08 m x min(-1) neither HR or VO2 were significantly different between LM or BM (LM, BM, > FM). Stride length and stride frequency were also significantly different between conditions. These results indicate the variation in the energy cost of FM, BM, and LM.]]></content:encoded>
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    <item>
      <title>Kardio-vaskuläre und Stoffwechselbelastung bei Vor-, Rückwärts- und Seitbewegung</title>
      <pubDate>Thu, 01 Jan 1998 04:18:05 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/3029445</link>
      <guid>https://sponet.de/sponet/Record/3029445</guid>
      <author>Williford, H. N.</author>
      <author>Scharff Olson, M.</author>
      <author>Gauger, S.</author>
      <author>Duey, W. I.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Tennis</dc:subject>
      <dc:subject>Lauf</dc:subject>
      <dc:subject>Bewegungsgrundform</dc:subject>
      <dc:subject>Energiestoffwechsel</dc:subject>
      <dc:subject>Stoffwechsel</dc:subject>
      <dc:subject>Herz</dc:subject>
      <dc:subject>Kreislauf</dc:subject>
      <dc:subject>Atmung</dc:subject>
      <dc:subject>Belastungsintensität</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Williford, H. N.</dc:creator>
      <dc:creator>Scharff Olson, M.</dc:creator>
      <dc:creator>Gauger, S.</dc:creator>
      <dc:creator>Duey, W. I.</dc:creator>
      <content:encoded><![CDATA[Zielstellung: 
Vergleich der Reaktionen des Herz-Kreislauf-Systems und des Stoffwechsel bei Bewegegung in Vorwärts- (FM), Rückwärts- (BM) und Seiwärtsrichtung (LM).
Methoden/Probanden:
13 internationale Tennisspieler (21+/-3 Jahre) bewegten sich auf dem Laufand mit einer Geschwindigkeit von 80.45 und 134.08 m/min in den o.g. 3 Richtungen.
Ergebnis:
Bei einer Geschwindigkeit von 80.45 m/min waren die kardiorespiratorischen Meßwerte bei allen drei Bewegungsarten sign. unterschiedlich. LM wies den höchsten Energiebedarf und die höchste Herzfrequenz auf. 
Bei 134.08 m/min lagen zwischen LM und BM keine Unterschiede vor, sie wiesen aber eine sign. höhe kardiorespiratorische Anforderung im Vergleich zu FM auf.]]></content:encoded>
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