Menopausal hormone therapy and change in physical activity in the Women's Health Initiative hormone therapy clinical trials.
Menopause
; 30(9): 898-905, 2023 09 01.
Article
em En
| MEDLINE
| ID: mdl-37527476
ABSTRACT
OBJECTIVE:
The menopausal transition results in a progressive decrease in circulating estrogen levels. Experimental evidence in rodents has indicated that estrogen depletion leads to a reduction of energy expenditure and physical activity. It is unclear whether treatment with estrogen therapy increases physical activity level in postmenopausal women.METHODS:
A total of 27,327 postmenopausal women aged 50-79 years enrolled in the Women's Health Initiative randomized double-blind trials of menopausal hormone therapy. Self-reported leisure-time physical activity at baseline, and years 1, 3, and 6 was quantified as metabolic equivalents (MET)-h/wk. In each trial, comparison between intervention and placebo groups of changes in physical activity levels from baseline to follow-up assessment was examined using linear regression models.RESULTS:
In the CEE-alone trial, the increase in MET-h/wk was greater in the placebo group compared with the intervention group at years 3 ( P = 0.002) and 6 ( P < 0.001). Similar results were observed when analyses were restricted to women who maintained an adherence rate ≥80% during the trial or who were physically active at baseline. In the CEE + MPA trial, the primary analyses did not show significant differences between groups, but the increase of MET-h/wk was greater in the placebo group compared with the intervention group at year 3 ( P = 0.004) among women with an adherence rate ≥80%.CONCLUSIONS:
The results from this clinical trial do not support the hypothesis that estrogen treatment increases physical activity among postmenopausal women.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estrogênios Conjugados (USP)
/
Estrogênios
Tipo de estudo:
Clinical_trials
Limite:
Female
/
Humans
Idioma:
En
Revista:
Menopause
Ano de publicação:
2023
Tipo de documento:
Article