Cardiorespiratory fitness evaluation in climacteric women: Comparison of two methods

Notelovitz, Morris; Fields, Carol; Caramelli, Kim; Dougherty, Molly C.; Schwartz, Anna L.

doi:10.1016/0002-9378(86)90739-8

Cited by 18 publications

(1 citation statement)

References 11 publications

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“…In addition, the resting supine HR was five beats higher in the HAG compared to the LAG, which is within an expected range considering the previous literature ( Fleg et al, 1990 , 1994 ; Lakatta and Levy, 2003b ). The influence of age on women HR autonomic modulation has been shown in previous studies ( Cowan and Gregory, 1985 ; Notelovitz et al, 1986 ; Lee et al, 1997 ; Neves et al, 2007 ; Almeida-Santos et al, 2016 ). Some of these studies also identified that the decline in aerobic power after menopause was associated with age.…”

Section: Discussionsupporting

confidence: 58%

Associations Between Heart Rate Recovery Dynamics With Estradiol Levels in 20 to 60 Year-Old Sedentary Women

et al. 2018

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It is hypothesized that estradiol levels, as well as aging, influence cardiac autonomic function in women. The main aim of this study was to test the correlations between heart rate recovery (HRR) dynamics, as a proxy of cardiac autonomic function, with estradiol levels and age in women. This cross-sectional study involved 44 healthy women. Heart rate (HR) data were obtained beat-by-beat during the entire experiment. Maximal incremental exercise testing (IET) on a cycle ergometer was performed followed by 6 min of recovery. During the IET recovery period, the overall HRR dynamics were evaluated by exponential data modeling (time constant “τ”) where shorter τ indicates faster HRR adjustment. Considering the cardiac autonomic complexity, HRR dynamics were also evaluated by delta (Δ) analysis considering different HR data intervals. The relationship between HRR dynamics, estradiol levels and age was tested by Pearson product-moment correlation. The overall HRR dynamics (i.e., τ) were statistically correlated with age (r = 0.58, p < 0.001) and estradiol levels (r = -0.37, p = 0.01). The Δ analysis showed that the slower overall HRR associated with aging was a consequence of slower dynamics occurring within the 45–210 s interval, indicating slower sympathetic withdrawal. In conclusion, aging effects on HRR in women seems to be correlated with a slower sympathetic withdrawal. In addition, the cardioprotective effect previously associated with estradiol seems not to influence the autonomic modulation during exercise recovery periods in women.

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Section: Discussionsupporting

confidence: 58%

Associations Between Heart Rate Recovery Dynamics With Estradiol Levels in 20 to 60 Year-Old Sedentary Women

et al. 2018

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Estrogen therapy and variable-resistance weight training increase bone mineral in surgically menopausal women

Notelovitz¹,

Martı́n

Tesar³

et al. 1991

Journal of Bone and Mineral Research

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185

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This study was undertaken to examine the effect of estrogen replacement therapy alone and estrogen replacement therapy plus variable-resistance weight training on the bone mineral content of surgically menopausal women. A total of 20 surgically menopausal women were randomized and treated with either 0.625 mg conjugated estrogen daily or the same dose of estrogen plus a closely monitored exercise program involving the use of Nautilus muscle strengthening/endurance equipment. After 1 year's observation, the bone mineral density (BMD) of the spine determined by dual-photon absorptiometry increased in the exercising subjects by 8.3 +/- 5.3% (p = 0.004), 95% confidence limits (CL) 3.9-12.8%; the group with estrogen replacement therapy alone maintained their BMD: 1.5 +/- 12.4% (p = 0.36; 95% CL = -6.9-9.8%). The total body BMD of the exercising group increased by 2.1 +/- 1.5% (p = 0.003; 95% CL = 0.8-3.3%); the nonexercising women had a nonsignificant 0.6 +/- 2.9% change (p = 0.30; 95% CL = -1.4-2.5%). A significant increase of 4.1 +/- 4.3% (p = 0.01; 95% CL = 0.8-7.4%) in the radial midshaft BMD of the exercising group was found; the estrogen alone group recorded a nonsignificant change of -0.3 +/- 3.1% (p = 0.33; 95% CL = -1.7-2.4%). The results of this study suggest that variable-resistance training in estrogen-replete women adds bone to both the axial and appendicular skeleton.

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Lifestyle, Exercise and Osteoporosis

Notelovitz¹

1990

HRT and Osteoporosis

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Cardiorespiratory fitness evaluation in climacteric women: Comparison of two methods

Cited by 18 publications

References 11 publications

Associations Between Heart Rate Recovery Dynamics With Estradiol Levels in 20 to 60 Year-Old Sedentary Women

Associations Between Heart Rate Recovery Dynamics With Estradiol Levels in 20 to 60 Year-Old Sedentary Women

Estrogen therapy and variable-resistance weight training increase bone mineral in surgically menopausal women

Lifestyle, Exercise and Osteoporosis

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