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    <item>
      <title>Die Auswirkung von ablenkender Aktivität auf die Ermüdung bei isokinetischer Belastung unter Nutzung großer Muskelgruppen</title>
      <pubDate>Fri, 01 Jan 1999 06:29:55 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/4004600</link>
      <guid>https://sponet.de/sponet/Record/4004600</guid>
      <author>Rotstein, A.</author>
      <author>Jablonowsky, R.</author>
      <author>Bar-Sela, S.</author>
      <author>Malamud, G.</author>
      <author>Inbar, O.</author>
      <author>Tenenbaum, G.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Belastung</dc:subject>
      <dc:subject>dynamisch</dc:subject>
      <dc:subject>Ermüdung</dc:subject>
      <dc:subject>Muskelphysiologie</dc:subject>
      <dc:subject>Trainingsmethode</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Rotstein, A.</dc:creator>
      <dc:creator>Jablonowsky, R.</dc:creator>
      <dc:creator>Bar-Sela, S.</dc:creator>
      <dc:creator>Malamud, G.</dc:creator>
      <dc:creator>Inbar, O.</dc:creator>
      <dc:creator>Tenenbaum, G.</dc:creator>
      <content:encoded><![CDATA[Previous investigations have demonstrated the fatigue-reducing effect of diverting activity during intervals of repeated isotonic exertion of small muscle groups. The purpose of the present investigation was to evaluate the effect of diverting activity on performance of large muscle groups (legs) working isokinetically. Fifteen trained males (mean ± SD: 17.4 ± 0.51 years old, 74.6 ± 9 kg in weight, 184 ± 6.6 cm in height) participated in this study. Each subject performed three leg extension exercise sessions. Each exercise session included two bouts of all-out leg extension repetition for 40 seconds at a constant angular velocity of 180°·s   1 on an Ariel computerized isokinetic machine with a 1-minute rest period in between. During the 1-minute interval between each bout, one of the following treatments was applied: (a) passive rest, (b) active recovery consisting of low intensity leg work, and (c) diverting activity during which the subject was instructed to squeeze a 2× 2 cm rubber sponge between his thumb and his middle finger to the beat of a metronome. The order of treatment was randomly assigned. The main finding of the present investigation indicates that diverting activity as used in this study reduced muscle fatigue, similarly to active recovery and more effectively than passive rest. Average force decreased by 30.1 N after diverting activity compared to a decrease of 39.8 N after passive recovery. The findings indicate that diverting activity may reduce fatigue developed with isokinetic exercise performed with large muscle groups. ]]></content:encoded>
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    <item>
      <title>Die Auswirkung ablenkender Aktivität auf die Ermüdung während isokinetischer Belastung unter Einsatz großer Muskelgruppen</title>
      <pubDate>Fri, 01 Jan 1999 06:29:55 +0100</pubDate>
      <link>https://sponet.de/sponet/Record/3030683</link>
      <guid>https://sponet.de/sponet/Record/3030683</guid>
      <author>Rotstein, A.</author>
      <author>Jablonowsky, R.</author>
      <author>Bar-Sela, S.</author>
      <author>Malamud, G.</author>
      <author>Tenenbaum, G.</author>
      <author>Inbar, O.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Ermüdung</dc:subject>
      <dc:subject>Sportphysiologie</dc:subject>
      <dc:subject>Sportpsychologie</dc:subject>
      <dc:subject>Muskelphysiologie</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Rotstein, A.</dc:creator>
      <dc:creator>Jablonowsky, R.</dc:creator>
      <dc:creator>Bar-Sela, S.</dc:creator>
      <dc:creator>Malamud, G.</dc:creator>
      <dc:creator>Tenenbaum, G.</dc:creator>
      <dc:creator>Inbar, O.</dc:creator>
      <content:encoded><![CDATA[Es wurde der Einfluß ablenkender Aktivität auf die Leistung isokinetisch arbeitender großer Muskelgruppen  (Beine) untersucht. 
Dazu wurde der Einfluß dreier unterschiedlicher Arten der Pausengestaltung zwischen der Belastung verglichen: a) passive Erholung, b) aktive Erholung (=leichte Belastung) c) ablenkende, unterhaltsame Aktivität.
Ergebnis:
Die in dieser Studie eingesetzte Form ablenkender Aktivität (Drücken eines 2x2 cm großen Gummiteils zwischen Daumen und Mittelfinger im Rhythmus eines Metronoms) führte zu einer Verringerung der Muskelermüdung, ähnlich zur Wirkung der aktiven Erholung und effektiver als die passive Erholung. 
Daraus wird geschlußfolgert, daß ablenkende Aktivität die bei isokinetischer Belastung großer Muskelgruppen entstehende Ermüdung reduzieren kann.]]></content:encoded>
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