Physical activity, energy expenditure and sedentary parameters in overfeeding studies - a systematic review

Abstract Background It has been proposed that compensations in physical activity, energy expenditure and sedentary parameters can occur as a result of overfeeding studies in order to maintain body weight; however, the evidence has not yet been systematically reviewed. Methods The current study systematically reviewed the literature on this subject to determine the common tools used in overfeeding studies and to explore whether overfeeding produces changes in physical activity, energy expenditure and sedentary parameters. Eight electronic databases were searched to identify experimental studies using keywords pertaining to overfeeding, exercise, physical activity and sedentariness. Articles included healthy adults (aged 18–64 years) participating in an overfeeding study that examined at least one parameter of sedentary, energy expenditure or physical activity. Of 123 full-text articles reviewed, 15 met the inclusion criteria. Results The common tools used in overfeeding studies were doubly labeled water (n = 6), room calorimeter (n = 4), accelerometer (n = 7), pedometer (n = 3), radar sensor (n = 4) and survey (n = 1). Parameters partaining to energy expenditure increased between 7 to 50% with different overfeeding duration. Physical activity parameters, such as number of steps and spontaneous activity, increased or decreased significantly in three studies, while five studies showed no significant change. Sedentary parameters were examined by only one study and its results were not significant after 3 days of overfeeding. Methodological issues existed concerning the small number of studies, disparities in sedentary and physical activity parameters and various definitions of free-living experimental conditions and physical activity limits. Conclusions There is actually a use of many tools and a large variation of parameters for physical activity in overfeeding studies. Contradictory findings showed changes in physical activity parameters following overfeeding and limited findings support the absence of changes in sedentariness. While energy expenditure parameters are more numerous and all show an increase after an overfeeding period, further studies are required to confirm changes in physical activity and sedentary parameters

Effect of polyphenols during a high-fat diet enhanced with chemical shift-encoded MRI

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Effect of polyphenols during a high-fat diet enhanced with chemical shift-encoded MRI

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Comparison of 3D spoiled-gradient multiple echo with STEAM for proton density fat fraction and fatty acid composition estimation

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Quantification of abdominal subcutaneous and visceral fat by magnetic resonance imaging of the proton at 3T: application to an overfeeding protocol

International audienceOverweight and obesity are a major worldwide health problem increasing the risk to develop pathologies such as diabetes and cardiovascular disease. The metabolic risk is modulated by the adiposity distribution and the fatty acid composition. Quantitative MRI to assess the fat volumes and composition is still little used. This study shows, using a single 3D multiple gradient echo sequence, that overfeeding has a significant effect on fat storage in the body with an increase of visceral and subcutaneous abdominal adipose tissues volumes, fat storage in the liver and seems to have an effect on stored fat composition

Comparison of 3D spoiled-gradient multiple echo with STEAM for proton density fat fraction and fatty acid composition estimation

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MODELE PARAMETRIQUE POUR L'ESTIMATION DE LA COMPOSITION LIPIDIQUE EN SPECTROSCOPIE DE RESONANCE MAGNETIQUE

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Effect of the phase variation induced by eddy currents on localized spectroscopy fatty acid composition quantification and its correction

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Additional file 1 of Physical activity, energy expenditure and sedentary parameters in overfeeding studies - a systematic review

Risk of Bias Assessment. Risk of bias assessed for sequence generation, allocation concealment, blinding outcome assessors, incomplete outcome data, selective outcome and other sources of bias. (DOC× 133 kb

Effect of the phase variation induced by eddy currents on localized spectroscopy fatty acid composition quantification and its correction

International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/3848.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/3848.htm