Document Detail


Effect of the sporting discipline on the right and left ventricular morphology and function of elite male track runners: a magnetic resonance imaging and phosphorus 31 spectroscopy study.
MedLine Citation:
PMID:  17967601     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Professional, long-term physical training is often associated with morphological and metabolic changes in the heart. This study was undertaken to assess the left ventricular (LV) and right ventricular (RV) morphology and function and the LV high-energy phosphates of athletes trained to a sustained power or aerobic exercise. METHODS: Magnetic resonance imaging (MRI) of the LV and RV and phosphorous 31 magnetic resonance spectroscopy of the LV were performed by means of a 1.5-T clinical scanner in 23 elite track sprinters (sustained power or anaerobic power sprint training, 100-400 m) or marathon runners (sustained aerobic endurance training) and in 10 sedentary, young, lean men. RESULTS: Athletes had LV hypertrophy and unaffected chamber size, systolic and diastolic functions, and high-energy phosphates metabolism. Also, the RV of the athletes was hypertrophied in comparison with that of the nonathletic controls, and the systolic and diastolic functions were unaffected; the chamber volume was higher in the sprinters (end-diastolic volume 190 +/- 15 mL) in comparison with that of the marathon runners (174 +/- 19 mL, P < .05) and controls (168 +/- 19 mL, P < .01) even if this difference, when adjusted for body surface area, was maintained only when compared with that of controls (P < .02). CONCLUSIONS: Left ventricular and RV hypertrophy in athletes is associated with normal systolic and diastolic functions and resting cardiac energy metabolism, supporting its benign nature. A more pronounced RV dilatation was found in the anaerobic power athletes and further investigation is warranted to establish the clinical significance of this training effect.
Authors:
Gianluca Perseghin; Francesco De Cobelli; Antonio Esposito; Guido Lattuada; Ileana Terruzzi; Antonio La Torre; Elena Belloni; Tamara Canu; Paola Scifo; Alessandro Del Maschio; Livio Luzi; Giampietro Alberti
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-08-27
Journal Detail:
Title:  American heart journal     Volume:  154     ISSN:  1097-6744     ISO Abbreviation:  Am. Heart J.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-30     Completed Date:  2007-11-13     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  937-42     Citation Subset:  AIM; IM    
Affiliation:
Internal Medicine-Section of Nutrition/Metabolism, San Raphael Scientific Institute, Milan, Italy. perseghin.gianluca@hsr.it
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MeSH Terms
Descriptor/Qualifier:
Adult
Heart Ventricles / anatomy & histology*
Humans
Magnetic Resonance Imaging / methods*
Magnetic Resonance Spectroscopy / methods*
Male
Phosphorus Isotopes / diagnostic use
Physical Endurance / physiology
Reference Values
Running / physiology*,  psychology
Ventricular Function
Ventricular Function, Left / physiology*
Ventricular Function, Right / physiology*
Chemical
Reg. No./Substance:
0/Phosphorus Isotopes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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