Document Detail


The influence of fitness and body weight on preferred exercise intensity.
MedLine Citation:
PMID:  16672854     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The purpose of this investigation was to determine the individual and combined effects of aerobic fitness and body weight on physiological responses, perceived exertion, and speed variables during self-selected steady-state treadmill (TM) walking in 60 healthy college-age women. METHODS: The women were placed into one of four categories based on body mass index (BMI) and fitness level, assessed by a graded TM test. Subjects walked continuously on a TM at a self-selected pace for 15 min at a 2.5% grade. The dependent variables were oxygen uptake (VO(2)), HR, percentage of maximal oxygen uptake (VO(2max)), percentage of HRmax (%HRmax), RPE for the overall body, TM belt speed, and total energy expenditure (EE). RESULTS: There were no significant interactions or body weight main effects for any of the dependent variables. However, lower-fitness subjects walked at a TM speed that resulted in a higher (P < 0.0005) VO(2max) (52.4 vs 39.56) than the higher-fitness subjects. CONCLUSION: These findings suggest that fitness, and not body weight, influences preferred exercise intensity as measured by VO(2max) during TM walking in college-age women. The self-selected walking speed did not result in an intensity, as determined by VO(2max), that is consistent with the enhancement of cardiorespiratory fitness for higher-fitness women regardless of body weight.
Authors:
Jennifer A Pintar; Robert J Robertson; Andrea M Kriska; Elizabeth Nagle; Frederic L Goss
Related Documents :
12783984 - Associations between cardiorespiratory responses to exercise and the c34t ampd1 gene po...
19089444 - Exercise modality and physical fitness in perimenopausal women.
15793084 - A review of the stroke volume response to upright exercise in healthy subjects.
16095414 - Influence of high-intensity interval training on adaptations in well-trained cyclists.
18284764 - Ecological niches in sequential generations of eastern north american monarch butterfli...
16596104 - The effects of a nucleotide supplement on salivary iga and cortisol after moderate endu...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  38     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-05-04     Completed Date:  2006-10-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  981-8     Citation Subset:  IM; S    
Affiliation:
Department of Human Performance and Exercise Science, Youngstown State University, OH 44555, USA. japintar@ysu.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Body Mass Index
Body Weight*
Choice Behavior*
Exercise / physiology*
Exercise Test
Female
Humans
Oxygen Consumption
Physical Fitness / physiology*
United States

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


Previous Document:  Psychosocial factors related to physical activity and weight loss in overweight women.
Next Document:  Impact of physical activity during pregnancy and postpartum on chronic disease risk.