Evaluation of sleeping energy expenditure using the SenseWear Armband in patients with overt and subclinical hypothyroidism

Ulaş, Turgay; Büyükhatipoğlu, Hakan; Eren, Mehmet Ali; Dal, Mehmet Sinan; Torun, Aysenur; Aydoğan, Timuçin; Demir, Mehmet Emin; Turan, Mehmet

doi:10.25011/cim.v35i3.16588

Cited by 9 publications

(5 citation statements)

References 25 publications

(29 reference statements)

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“…Al-Adsani et al [8] observed that slight changes in thyroid hormone levels affected the RMR but not the TEG. However, Ulas et al [19] showed that energy expenditure during sleep was similar between hypothyroid and healthy subjects. Our studies have clearly showed that hypothyroidism associated with reduction in energy expenditure occurs not only in the case of RMR but also in the case of reducing TEG.…”

Section: Discussionmentioning

confidence: 99%

Thermogenic Effect of Glucose in Hypothyroid Subjects

Kozacz

Grunt

Steczkowska

et al. 2014

International Journal of Endocrinology

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The importance of thyroid hormone, catecholamines, and insulin in modification of the thermogenic effect of glucose (TEG) was examined in 34 healthy and 32 hypothyroid subjects. We calculated the energy expenditure at rest and during oral glucose tolerance test. Blood samples for determinations of glucose, plasma insulin, adrenaline (A), and noradrenaline (NA) were collected. It was found that TEG was lower in hypothyroid than in control group (19.68 ± 3.90 versus 55.40 ± 7.32 kJ, resp., P < 0.0004). Mean values of glucose and insulin areas under the curve were higher in women with hypothyroidism than in control group (286.79 ± 23.65 versus 188.41 ± 15.84 mmol/L·min, P < 0.003 and 7563.27 ± 863.65 versus 4987.72 ± 583.88 mU/L·min, P < 0.03 resp.). Maximal levels of catecholamines after glucose ingestion were higher in hypothyroid patients than in control subjects (Amax—0.69 ± 0.08 versus 0.30 ± 0.07 nmol/L, P < 0.0001, and NAmax—6.42 ± 0.86 versus 2.54 ± 0.30 nmol/L, P < 0.0002). It can be concluded that in hypothyroidism TEG and glucose tolerance are decreased while the adrenergic response to glucose administration is enhanced. Presumably, these changes are related to decreased insulin sensitivity and responsiveness to catecholamine action.

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Section: Discussionmentioning

confidence: 99%

Thermogenic Effect of Glucose in Hypothyroid Subjects

Kozacz

Grunt

Steczkowska

et al. 2014

International Journal of Endocrinology

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“…Each moment of our day is spent in one of three basic activities: PA, SB and sleep. 7 Each of these behaviours is mutually exclusive, has different energy expenditures from each other 10 , 23 , 24 and is physiologically distinct phenomena – both in the periphery and the brain. 25 - 31 …”

Section: What Are Time-use Activity Behaviours?mentioning

confidence: 99%

“…These considerations include ( 1 Each moment of our day is spent in one of three basic activities: PA, SB and sleep. 7 Each of these behaviours is mutually exclusive, has different energy expenditures from each other 10,23,24 and is physiologically distinct phenomenaboth in the periphery and the brain. [25][26][27][28][29][30][31] There are at least four separate terms used to collectively describe PA, SB and sleep.…”

Section: Introductionmentioning

confidence: 99%

A Wrinkle in Measuring Time Use for Cognitive Health: How should We Measure Physical Activity, Sedentary Behaviour and Sleep?

Falck

Davis

Khan

et al. 2021

American Journal of Lifestyle Medicine

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One new case of dementia is detected every 4 seconds and no effective drug therapy exists. Effective behavioural strategies to promote healthy cognitive ageing are thus essential. Three behaviours related to cognitive health which we all engage in daily are physical activity, sedentary behaviour and sleep. These time-use activity behaviours are linked to cognitive health in a complex and dynamic relationship not yet fully elucidated. Understanding how each of these behaviours is related to each other and cognitive health will help determine the most practical and effective lifestyle strategies for promoting healthy cognitive ageing. In this review, we discuss methods and analytical approaches to best investigate how these time-use activity behaviours are related to cognitive health. We highlight four key recommendations for examining these relationships such that researchers should include measures which (1) are psychometrically appropriate; (2) can specifically answer the research question; (3) include objective and subjective estimates of the behaviour and (4) choose an analytical method for modelling the relationships of time-use activity behaviours with cognitive health which is appropriate for their research question.

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“…A small study comparing subjects with frankly hypothyroid and subclinical hypothyroid and healthy control subjects did not observe any difference in their sleeping EE when measured by accelerometers and metabolic equivalent of task (MET) at baseline and after achieving euthyroidism [47]. This is not surprising because the frank hypokinesia is observed only in extremely severe forms of hypothyroidism; hence, the limited sensitivity of the accelerometer technique likely contributed to decreasing the ability of estimating small differences in EE.…”

Section: Clinical Correlates Of Thyroid Disorders On Eementioning

confidence: 99%

Thyroid Hormone Action and Energy Expenditure

Yavuz

Prado

Celi

2019

Journal of the Endocrine Society

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Energy metabolism is one of the most recognized targets of thyroid hormone action, which indeed plays a critical role in modulating energy expenditure in all of its components. This is because thyroid hormone receptors are ubiquitous, and thyroid hormones interact and influence most metabolic pathways in virtually all systems throughout the entire life of the organism. The pleiotropic actions of thyroid hormone are the results of interaction between the local availability of T3 and the signal transduction machinery, which confer in physiologic conditions time and tissue specificity of the hormonal signal despite negligible variations in circulating levels. Historically, the measurement of energy expenditure has been used as the gold standard for the clinical assessment of the hormonal action until the advent of the immunoassays for TSH and thyroid hormone, which have since been used as proxy for measurement of thyroid hormone action. Although the clinical correlates between thyroid hormone action and energy expenditure in cases of extreme dysfunction (florid hyperthyroidism or hypothyroidism) are well recognized, there is still controversy on the effects of moderate, subclinical thyroid dysfunction on energy expenditure and, ultimately, on body weight trajectory. Moreover, little information is available on the effects of thyroid hormone replacement therapy on energy expenditure. This mini review is aimed to define the clinical relevance of thyroid hormone action in normal physiology and functional disorders, as well the effects of thyroid hormone therapy on energy expenditure and the effects of changes in energy status on the thyroid hormone axis.

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Evaluation of sleeping energy expenditure using the SenseWear Armband in patients with overt and subclinical hypothyroidism

Cited by 9 publications

References 25 publications

Thermogenic Effect of Glucose in Hypothyroid Subjects

Thermogenic Effect of Glucose in Hypothyroid Subjects

A Wrinkle in Measuring Time Use for Cognitive Health: How should We Measure Physical Activity, Sedentary Behaviour and Sleep?

Thyroid Hormone Action and Energy Expenditure

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