Document Detail


Exercise-induced improvements in cardiorespiratory fitness and heart rate response to exercise are impaired in overweight/obese postmenopausal women.
MedLine Citation:
PMID:  21655751     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this study was to compare the heart rate response to exercise and the exercise-induced improvements in muscle strength, cardiorespiratory fitness and heart rate response between normal-weight and overweight/obese postmenopausal women.
METHODS: Sedentary women (n = 155) were divided into normal-weight (n = 79; BMI <25 kg/m(2); 58.3 ± 8.6 years) and overweight/obese (n = 76; BMI >25 kg/m(2); 58.3 ± 8.6 years) groups, and have their 1-repetition maximum strength (adjusted for body mass), cardiorespiratory fitness and heart rate response to a graded exercise test compared before and after 12 months of a three times-per-week exercise-training program.
RESULTS: Overweight/obese women displayed decreased upper and lower extremity muscle strengths, decreased cardiorespiratory fitness, and lower peak and reserve heart rates compared to normal-weight women. After follow-up, both groups improved their upper (32.9% and 41.5% in normal-weight and overweight/obese women, respectively) and lower extremity(49.5% and 47.8% in normal-weight and overweight/obese women, respectively) muscle strength. However, only normal-weight women improved their cardiorespiratory fitness (6.6%) and recovery heart rate (5 bpm). Resting, reserve and peak heart rates did not change in either group.
CONCLUSIONS: Overweight/obese women displayed impaired heart rate response to exercise. Both groups improved muscle strength, but only normal-weight women improved cardiorespiratory fitness and heart rate response to exercise. These results suggest that exercise-induced improvements in cardiorespiratory fitness and heart rate response to exercise may be impaired in overweight/obese postmenopausal women.
Authors:
Emmanuel Gomes Ciolac; Júlia Maria D'Andréa Greve
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinics (São Paulo, Brazil)     Volume:  66     ISSN:  1980-5322     ISO Abbreviation:  Clinics (Sao Paulo)     Publication Date:  2011  
Date Detail:
Created Date:  2011-06-09     Completed Date:  2011-12-28     Revised Date:  2013-06-28    
Medline Journal Info:
Nlm Unique ID:  101244734     Medline TA:  Clinics (Sao Paulo)     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  583-9     Citation Subset:  IM    
Affiliation:
Laboratory of Kinesiology, Institute of Orthopedics and Traumatology, School of Medicine, University of São Paulo, Brazil. egciolac@hcnet.usp.br
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MeSH Terms
Descriptor/Qualifier:
Aged
Case-Control Studies
Exercise / physiology*
Female
Heart Rate / physiology*
Humans
Middle Aged
Muscle Strength / physiology*
Obesity / physiopathology*
Physical Fitness / physiology*
Postmenopause / physiology*
Comments/Corrections

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


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