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    <title>Results for Versions - 4069776</title>
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    <item>
      <title>Quantifizierung der mechanischen Arbeit der Atmung bei Männern und Frauen während des Ruderns</title>
      <pubDate>Wed, 01 Jan 2020 10:25:57 +0100</pubDate>
      <link>https://www.sponet.de/sponet/Record/4069776</link>
      <guid>https://www.sponet.de/sponet/Record/4069776</guid>
      <author>Reinhard, P. A.</author>
      <author>Gerson, E. A.</author>
      <author>Sheel, A. W.</author>
      <author>Archiza, B.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Rudern</dc:subject>
      <dc:subject>Atmung</dc:subject>
      <dc:subject>Parameter</dc:subject>
      <dc:subject>Ergometrie</dc:subject>
      <dc:subject>Geschlecht</dc:subject>
      <dc:subject>Differenz</dc:subject>
      <dc:subject>Hochschule</dc:subject>
      <dc:subject>Mechanik</dc:subject>
      <dc:subject>Lunge</dc:subject>
      <dc:subject>männlich</dc:subject>
      <dc:subject>weiblich</dc:subject>
      <dc:format>Artikel</dc:format>
      <dc:creator>Reinhard, P. A.</dc:creator>
      <dc:creator>Gerson, E. A.</dc:creator>
      <dc:creator>Sheel, A. W.</dc:creator>
      <dc:creator>Archiza, B.</dc:creator>
      <content:encoded><![CDATA[Purpose: To quantify the mechanical work of breathing (Wb) during an indoor rowing test in men and women. Additionally, to compare sex-based differences in the Wb and its components through a rowing test.
Methods: Fifteen collegiate rowers were recruited (8 women/7 men) and performed a 2000 m rowing test on a rowing ergometer. Esophageal pressure was measured during exercise via balloon catheterization, after which pressure-volume curves were used to calculate total, inspiratory resistive and elastic, and total expiratory Wb.
Results: Men had significantly higher values of instantaneous and cumulative total Wb at and beyond 37.5% (430.4 ± 42.5 vs. 282.1 ± 45.1 J/min, P < 0.05) and 62.5% (1946.8 ± 150.9 vs. 1360.1 ± 197.2 J, P < 0.05) total exercise time, respectively. However, when compared at the same minute ventilation, women had higher values of total (at and above ~ 140 L/min), inspiratory resistive (at and above ~ 120 L/min), and inspiratory elastic (at and above ~ 135 L/min) Wb, whereas men presented higher total expiratory Wb compared to women at any ventilation.
Conclusion: Although female rowers present higher relative values of inspiratory resistive and elastic Wb, their male counterparts develop greater ventilatory efforts during a 2000 m rowing test, resulting in a larger total mechanical Wb. We interpret these findings to mean that the Wb reflects both anatomical (i.e., airways and lung sizes) and respiratory (i.e., minute ventilation) sex differences during rowing.]]></content:encoded>
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    <item>
      <title>Quantifizierung der mechanischen Arbeit der Atmung von Männern und Frauen beim Rudern</title>
      <pubDate>Wed, 01 Jan 2020 10:25:57 +0100</pubDate>
      <link>https://www.sponet.de/sponet/Record/4058244</link>
      <guid>https://www.sponet.de/sponet/Record/4058244</guid>
      <author>Reinhard, P. A.</author>
      <author>Gerson, E. A. M.</author>
      <author>Sheel, A. W.</author>
      <author>Archiza, B.</author>
      <dc:format>Artikel</dc:format>
      <dc:subject>Rudern</dc:subject>
      <dc:subject>Atmung</dc:subject>
      <dc:subject>männlich</dc:subject>
      <dc:subject>weiblich</dc:subject>
      <dc:subject>Energiestoffwechsel</dc:subject>
      <dc:tag>Ventilation</dc:tag>
      <dc:format>Artikel</dc:format>
      <dc:creator>Reinhard, P. A.</dc:creator>
      <dc:creator>Gerson, E. A. M.</dc:creator>
      <dc:creator>Sheel, A. W.</dc:creator>
      <dc:creator>Archiza, B.</dc:creator>
      <content:encoded><![CDATA[PURPOSE: To quantify the mechanical work of breathing (Wb) during an indoor rowing test in men and women. Additionally, to compare sex-based differences in the Wb and its components through a rowing test.

METHODS: Fifteen collegiate rowers were recruited (8 women/7 men) and performed a 2000 m rowing test on a rowing ergometer. Esophageal pressure was measured during exercise via balloon catheterization, after which pressure-volume curves were used to calculate total, inspiratory resistive and elastic, and total expiratory Wb.

RESULTS: Men had significantly higher values of instantaneous and cumulative total Wb at and beyond 37.5% (430.4±42.5 vs. 282.1±45.1 J/min, P<0.05) and 62.5% (1946.8±150.9 vs. 1360.1±197.2 J, P<0.05) total exercise time, respectively. However, when compared at the same minute ventilation, women had higher values of total (at and above~140 L/min), inspiratory resistive (at and above~120 L/min), and inspiratory elastic (at and above~135 L/min) Wb, whereas men presented higher total expiratory Wb compared to women at any ventilation.

CONCLUSION: Although female rowers present higher relative values of inspiratory resistive and elastic Wb, their male counterparts develop greater ventilatory efforts during a 2000 m rowing test, resulting in a larger total mechanical Wb. We interpret these findings to mean that the Wb reflects both anatomical (i.e., airways and lung sizes) and respiratory (i.e., minute ventilation) sex differences during rowing.]]></content:encoded>
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