Characterizing Energy Expenditure During Sedentary Behavior After XXXX .

@entity1 @entity64 @entity146
OBJECTIVES: To measure and calculate the energy expended by @entity1 with @entity64 during near @entity146 (lying, supported and unsupported sitting, standing, wheelchair propulsion, walking), under controlled laboratory conditions, and to compare these values with the energy expenditure of 1.5 metabolic equivalent task (MET) within the definition of sedentary behavior. DESIGN: Cross-sectional cohort study. SETTING: Rehabilitation institutions. @entity1 : @entity1 with @entity64 (N=27; mean age, 61.0  11.7y), categorized at Functional Ambulation Categories (FAC) 0 to  5. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Energy expenditure (measured using indirect calorimetry) expressed in METs. The recorded values were calculated for every @entity1 and averaged for each activity: lying, supported and unsupported sitting, standing, wheelchair propulsion, and walking. Calculations were done for the total group and categorized by the FAC. RESULTS: For the total group the mean METs    SDs were 1.04  .11 for sitting supported, 1.09  .15 for sitting unsupported, 1.31  .25 for standing, 1.91  .42 for wheelchair propulsion, and 2.52  .55 for walking. @entity1 with @entity64 in all FAC had METs values >1.5 when propelling a  wheelchair or walking. CONCLUSIONS: Energy expenditure during typical @entity146 (ie, sitting) is narrowly bounded at approximately 1.0 MET. Energy expenditure during sitting and standing was  <=1.5 MET for all FAC, with the exception of FAC 0 (1.6 MET during standing). Independent wheelchair propulsion and walking can be categorized as light activities (>= 1.5 MET).
