Document Detail

Sex influence on myocardial function with exercise in adolescents.
MedLine Citation:
PMID:  20737616     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: Ventricular systolic functional response to exercise has been reported to be superior in adult men compared to women. This study explored myocardial responses to maximal upright progressive exercise in late pubertal males and females.
METHODS: Doppler echocardiographic techniques were utilized to estimate myocardial function response to a bout of progressive cycle exercise.
RESULTS: Systolic functional capacity, as indicated by ejection rate (12.5 +/- 2.8 and 13.1 +/- 1.0 [x10(-2)] ml s(-1) cm(-2) for boys and girls, respectively) and peak aortic velocity (208 +/- 45 and 196 +/- 12 cm s(-1), respectively) at maximal exercise, did not differ between the two groups. Similarly, peak values as well as increases in transmitral pressure gradient (mitral E flow velocity), ventricular relaxation (tissue Doppler imaging E'), and left ventricular filling pressure (E/E' ratio) as estimates of diastolic function were similar in males and females.
CONCLUSIONS: This study failed to reveal qualitative or quantitative differences between adolescent boys and girls in ventricular systolic or diastolic functional responses to maximal cycle exercise.
Thomas Rowland; Viswanath Unnithan; Max Garrard; Denise Roche; Kathryn Holloway; Julie Sandoval; Simon Marwood
Related Documents :
20737616 - Sex influence on myocardial function with exercise in adolescents.
3678266 - The efficacy of propafenone on exercise-induced ventricular arrhythmias.
24714536 - Acute effects of whole body vibration on trunk muscle functioning in young healthy adults.
518776 - Ventricular response to isometric and isotonic exercise. echocardiographic assessment.
11245506 - The effects of carbon dioxide on exercise-induced asthma: an unlikely explanation for t...
24378666 - Effect of a core conditioning intervention on tests of trunk muscular endurance in scho...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of human biology : the official journal of the Human Biology Council     Volume:  22     ISSN:  1520-6300     ISO Abbreviation:  Am. J. Hum. Biol.     Publication Date:    2010 Sep-Oct
Date Detail:
Created Date:  2010-08-25     Completed Date:  2011-01-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8915029     Medline TA:  Am J Hum Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  680-2     Citation Subset:  IM    
Copyright Information:
(c) 2010 Wiley-Liss, Inc.
Department of Pediatrics, Baystate Medical Center, Springfield, Massachusetts, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Adolescent Development
Cardiac Output / physiology*
Echocardiography, Doppler
Exercise / physiology*
Heart Rate / physiology*
Sex Characteristics*
Stroke Volume / physiology*
Ventricular Function, Left / physiology*

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

Previous Document:  Relation between C-reactive protein levels and body composition in a multiethnic sample of school ch...
Next Document:  Leg length and age of puberty among men and women from a developing population: the Guangzhou Bioban...