Lisa M Neff1, Mindy E Hoffmann1, Dinah M Zeiss2, Katherine Lowry3, Monica Edwards2, Sarah M Rodriguez4, Kelley N Wachsberg4, Robert Kushner1, Lewis Landsberg1. 1. Northwestern Comprehensive Center on Obesity, Northwestern University, Feinberg School of Medicine, Chicago, IL; Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL. 2. Northwestern Comprehensive Center on Obesity, Northwestern University, Feinberg School of Medicine, Chicago, IL. 3. Department of Medicine, Southern Illinois University School of Medicine, Springfield, IL. 4. Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL.
Abstract
OBJECTIVE: Weight gain during the menopausal transition is common. Although studies have suggested that weight gain is more likely related to aging than menopause, there is a reduction in resting energy expenditure with surgical or natural menopause which is independent of age and changes in body composition. The underlying mechanisms could include a reduction in core body temperature. METHODS: Data were obtained from two related studies. Sample size was 23 men and 25 women (12 premenopausal,13 postmenopausal). In the Clinical Research Unit, core temperature was measured every minute for 24 hours (CorTemp System,HQ Inc.). RESULTS: Mean 24-hour core body temperature was 0.25 ± 0.06 °C lower in postmenopausal than premenopausal women (p=0.001). Mean 24-hour core temperature was 0.34 ± 0.05 °C lower in men than in premenopausal women (p<0.001). CONCLUSIONS: Postmenopausal women, like men, had lower core body temperatures than premenopausal women. This may have implications for midlife weight gain.
OBJECTIVE:Weight gain during the menopausal transition is common. Although studies have suggested that weight gain is more likely related to aging than menopause, there is a reduction in resting energy expenditure with surgical or natural menopause which is independent of age and changes in body composition. The underlying mechanisms could include a reduction in core body temperature. METHODS: Data were obtained from two related studies. Sample size was 23 men and 25 women (12 premenopausal,13 postmenopausal). In the Clinical Research Unit, core temperature was measured every minute for 24 hours (CorTemp System,HQ Inc.). RESULTS: Mean 24-hour core body temperature was 0.25 ± 0.06 °C lower in postmenopausal than premenopausal women (p=0.001). Mean 24-hour core temperature was 0.34 ± 0.05 °C lower in men than in premenopausal women (p<0.001). CONCLUSIONS: Postmenopausal women, like men, had lower core body temperatures than premenopausal women. This may have implications for midlife weight gain.
Entities:
Keywords:
menopause; metabolism; obesity; temperature; weight; women
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