Evaluation of the Portable HealthWear Armband: A device to measure total daily energy expenditure in free-living type 2 diabetic individuals

Diabetes Care ◽  
2004 ◽  
Vol 28 (1) ◽  
pp. 225-227 ◽  
Author(s):  
D. Mignault ◽  
M. St.-Onge ◽  
A. D. Karelis ◽  
D. B. Allison ◽  
R. Rabasa-Lhoret
2000 ◽  
Vol 84 (4) ◽  
pp. 531-539 ◽  
Author(s):  
Jérôme Ribeyre ◽  
Nicole Fellmann ◽  
Jean Vernet ◽  
Michel Delaître ◽  
Alain Chamoux ◽  
...  

The objectives of the study were to determine: (1) daily energy expenditure (EE) of athletic and non-athletic adolescents of both sexes in free-living conditions; (2) day-to-day variations in daily EE during 1 week; (3) energy costs of the main activities; and (4) the effect of usual activity on EE during sleep, seated and miscellaneous activities. Fifty adolescents (four groups of eleven to fifteen boys or girls aged 16–19 years) participated in the study. Body composition was measured by the skinfold-thickness method, and VO2max and external mechanical power (EMP) by a direct method (respiratory gas exchanges) on a cycloergometer. Daily EE and partial EE in free-living conditions were computed from heart-rate (HR) recordings during seven consecutive days using individual prediction equations established from the data obtained during a 24 h period spent in whole-body calorimeters with similar activities. Fat-free mass (FFM), VO2max, EMP, daily EE and EE during sleep were significantly higher in athletic than in non-athletic subjects. After adjustment for FFM, VO2max, EMP, daily EE and EE during exercise were still higher in athletic than in non-athletic adolescents (P<0·001). However, adjusted sleeping EE was not significantly different between athletic and non-athletic adolescents. Increases in exercise EE were partly compensated for by significant reductions in EE during schoolwork and miscellaneous activities. Thus, the differences in daily EE between athletic and non-athletic subjects resulted mainly from increases in FFM and EE during exercise (duration and energy cost).


2014 ◽  
Vol 29 (2) ◽  
pp. 195-208 ◽  
Author(s):  
Quinn E. Fletcher ◽  
John R. Speakman ◽  
Stan Boutin ◽  
Jeffrey E. Lane ◽  
Andrew G. McAdam ◽  
...  

Author(s):  
Haley M. Scott ◽  
Tess N. Tyton ◽  
Craig A. Horswill

As the prevalence of obesity rises worldwide, researchers pursue explanations for the phenomenon, particularly those relevant to energy expenditure.  Non-exercise activity thermogenesis, or NEAT, has been identified as an inconspicuous but appreciable component of total daily energy expenditure.  Demands of certain occupations discourage time for planned physical activity and clearly diminish NEAT, and thereby contribute to sedentary behaviors that underlie increased adiposity. Prolonged sitting during the workday has specifically been identified as a risk factor for obesity and chronic disease independent of existing risk factors. Practical strategies have been launched by industry to increase NEAT during the workday. Workstations that involve maintaining balance while sitting on an exercise ball, standing, pedaling while sitting, and walking at a treadmill desk have been developed to counter extended periods of sedentary behavior at work.  While data are limited particularly for chronic benefits, the stations that promote the most movement – the pedaling and walking stations – increase METS and energy expenditure more so than the other alternatives.  The drawback to greater motion may be reduced attention to the desk job and therefore, reduced cognitive function; however, the data are inconsistent and the benefit for health may outweigh small distractions for some tasks at the desk.


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