Reproducibility of Ultrasound Blood Flow Measurement of the Superior Mesenteric Artery Before and After Exercise
| Autor: | E. Bol, R. C. Lapham, W. R. de Vries, H. P. F. Peters, W. L. Mosterd, D. de Leeuw |
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| Rok vydání: | 2001 |
| Předmět: |
Adult
Male medicine.medical_specialty Supine position Coefficient of variation Hemodynamics Physical Therapy Sports Therapy and Rehabilitation Physical exercise Ultrasound blood flow measurement Mesenteric Artery Superior medicine Humans Orthopedics and Sports Medicine Exercise physiology Exercise Ultrasonography Reproducibility business.industry Data Collection Reproducibility of Results Blood flow Surgery Regional Blood Flow Exercise Test business Nuclear medicine Sports |
| Zdroj: | International Journal of Sports Medicine. 22:245-249 |
| ISSN: | 1439-3964 0172-4622 |
| DOI: | 10.1055/s-2001-13811 |
| Popis: | This study examines the reproducibility of gastro-intestinal blood flow measurements in the superior mesenteric artery (SMA) both before and immediately after exercise with Doppler ultrasound measurements. Twelve well-trained males (mean +/- SD: age 25.9 +/- 3.8 yr; VO2max 4.8 +/- 0.91 x min(-1)) were measured twice (trial 1 and 2) with a 1 week interval before and immediately after 1 hr cycling at 70% VO2max. Duplex scanning was performed with the athletes in supine position immediately after transition from a chair (before exercise) or bicycle (after exercise). The variability of three measurements before exercise was studied within both trials (short-term reproducibility) and the mean pre-exercise values were compared between the trials (long-term reproducibility). In addition, post-exercise measurements were compared in the same way. Reproducibility was tested using the coefficient of variation and Cronbach's alpha. Mean pre-exercise blood flow was 424 +/- 66 ml/min (n = 12) in trial 1 and 375 +/- 38 ml/min (n = 11) in trial 2. Immediately after exercise blood flow had decreased by 49% to 214 +/- 36 ml/min (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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