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| Format: | Artículo científico |
| Language: | en |
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Universidade Iguaçu
2007
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| Online Access: | https://www.redalyc.org/articulo.oa?id=93010304 |
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Table of Contents:
- Oxygen delivery of men and women at peak wingate test Moran Sagiv Offer Amir David Ben-Sira Ruthie Amir Salud cardiac output Fick equation echocardiograph oxygen extraction Strenuous exercise SAGIV, MORAN; AMIR, OFFER; BEN-SIRA, DAVID; & AMIR, RUTHIE.Oxygen delivery of men and women at peak wingate test. Brazilian Journal ofBiomotricity. v. 1, n. 3, p. 65-75, 2007. The present study was designed toinvestigate the left ventricular function and muscle oxygen delivery in youngmen and women at peak Wingate anaerobic test. Young healthy men andwomen underwent the Wingate anaerobic test. Two-dimensional direct M-modeechocardiography studies were performed with the subject seated on a bicycleergometer. Arterial O2 was defined from echocardiograph and venous oxygencontent. At rest, left ventricular mass index, end diastolic dimension, maximaloxygen uptake, stroke volume and cardiac output were all significantly (p <0.05) higher in men than in women. At peak Wingate anaerobic test, mencompared to women had significantly (p < 0.05) higher values of cardiac output (14.4±0.6 and 12±0.3 lmin-1, respectively) and stroke volume (78.0±5.0 and69.0±6.1 ml, respectively), while (a-v)O2 (118.5±2.9 and 98.1±3.1 mlO2,respectively), oxygen uptake (26.3±1.4 and 22.7±1.1 mlkg1min1, respectively)and %VO2 out of total energy utilized (10.0 and 11.8 %, respectively) weresignificantly (p < 0.05) lower. This study indicates gender-related differences inleft ventricular response and muscle oxygen delivery of young men and womenat peak all-out strenuous exercise. Data suggest that healthy women responseto the Wingate anaerobic test by increasing their muscle oxygen extraction inthe face of lower oxygen delivery. 2007 artículo científico 1981-6324 https://www.redalyc.org/articulo.oa?id=93010304 en http://www.redalyc.org/revista.oa?id=930 Brazilian Journal of Biomotricity application/pdf Universidade Iguaçu Brazilian Journal of Biomotricity (Brasil) Num.3 Vol.1