Exercise-induced improvements in cardiorespiratory fitness and heart rate response to exercise are impaired in overweight/obese postmenopausal women
Clinics
; 66(4): 583-589, 2011. tab
Artigo
em Inglês
| LILACS
| ID: lil-588908
Biblioteca responsável:
BR1.1
ABSTRACT
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/m²; 58.3 + 8.6 years) and overweight/obese (n = 76; BMI >25 kg/m²; 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 percent and 41.5 percent in normal-weight and overweight/obese women, respectively) and lower extremity(49.5 percent and 47.8 percent in normal-weight and overweight/obese women, respectively) muscle strength. However, only normal-weight women improved their cardiorespiratory fitness (6.6 percent) 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.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Exercício Físico
/
Aptidão Física
/
Pós-Menopausa
/
Força Muscular
/
Frequência Cardíaca
/
Obesidade
Tipo de estudo:
Estudo observacional
Limite:
Idoso
/
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Clinics
Assunto da revista:
Medicina
Ano de publicação:
2011
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
University of São Paulo/BR