INTRODUCTION The determination of energy expenditure, considering the physical activity level and health status, is very important to adjust the individuals' nutritional supply. Energy expenditure can be determined by using indirect calorimetry, bioelectrical impedance, doubly labeled water, predictive equations, among others. All these methods have been used in clinical and research areas. How...

The study aims to describe and compare two methods of energy intake assessment and one measure of energy expenditure applied in adolescents from a birth cohort. In a sub-sample of the 1993 Pelotas (Brazil) birth cohort, followed up in 2006-7, information on intake was obtained through a food-frequency questionnaire (FFQ) and three 24-hour-recalls (24hR), while energy expenditure was assessed us...

The doubly labeled water tecbnique represents an unobtrusive and noninvasive means lo measure total daily energy expenditure in free-living human subjects who are unaware that energy expenditure is being measured. When combined with measurement of resting energy expenditure, the doubly labeled water technique can also be used to estimate energy expenditure related to physical activity. The rela...

The M spectrum of the element uranium was reinvestigated by using both high-resolution wavelength dispersive (WD) spectrometry as well as energy dispersive (ED) spectrometry. Thereby we observed relative intensities that deviate from data in the literature. These discrepancies were not only observed for the weak U M lines but also for major lines. By measuring the Mα,β region of the spectrum wi...

The utilization of geothermal energy has a long tradition in Hungary. When the present economic recession in the country ends in the near future, geothermal energy will surely play an increasing role in the energy supply. The paper shortly reviews the history of geothermal power use and discusses the present state of geothermal energy production in the country. Present power statistics as well ...

For decades, dual-energy imaging has been used for tissue differentiation with several x-ray–based imaging modalities, exploiting the fact that the tissues in the human body show different absorption characteristics when penetrated with different x-ray spectra, spectra that are typically generated by different kV settings of the x-ray tube. Recently, dual-source computed tomography (CT) with 2 ...

The maintenance of a precise caloric equilibrium is one of the most closely regulated parameters, as illustrated by the calculation that a positive energy balance of only þ0.3% over 30 years would lead to an increase in body weight of over 20 kg. Hence, the caloric input (i.e. appetite) and energy expenditure must be tightly regulated processes. The recent elucidation of the role of the melanoc...

OBJECTIVES Women boxing have got recognition recently and so far no work has been reported on energy expenditure of national women boxers in India. This study was aimed to estimate the energy expenditure in Indian female boxers during sparring. METHODS A total of 20 female boxers were subjected. Energy expenditure was estimated using the same individual's HR-VO2 regression equation. Heart rat...

There are no previous reports of energy expenditure and perceived effort during brisk-walking and running at speeds self-selected by young children. Fifty four participants (age 8-11 years old) performed 1500 m of brisk-walking and running in a marked school playground, and were given simple instructions to either 'walk quickly' or to 'jog'. During the running the children achieved higher mean ...

Energy is important at many different levels of organization in the living animal. Investigations of energetics may enhance our understanding of the evolution of animal traits, and in humans help towards tackling problems of energy balance, such as obesity. The doubly-labelled water technique is a non-in vasive method for direct measurement of the energy expenditure of free-living animals. This...