LEISURE TIME PHYSICAL ACTIVITY ENERGY EXPENDITURE IN CARDIAC REHABILITATION PATIENTS

2002 ◽  
Vol 34 (5) ◽  
pp. S248
Author(s):  
J R. Schairer ◽  
J K. Ehrman ◽  
C A. Brawner ◽  
N D. Berkebile ◽  
S J. Keteyian
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Cardiac Rehabilitation ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Physical Activity Energy Expenditure ◽  
Activity Energy

Estimating leisure-time physical activity energy expenditure in the Canadian population: a comparison of 2 methods

2009 ◽  
Vol 34 (4) ◽  
pp. 666-672 ◽  
Author(s):  
Shirley N. Bryan ◽  
Peter T. Katzmarzyk
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Canadian Community Health Survey ◽  
Physical Activity Energy Expenditure ◽  
Cross Sectional ◽  
Statistics Canada ◽  
The Impact ◽  
Activity Energy

The purpose of this study was to determine the impact of 2 different calculation methods for total leisure-time physical activity energy expenditure (LTPAEE) and LTPAEE from different intensity activities on the classification of level of physical activity in the population. Nationally representative cross-sectional data from the Canadian Community Health Survey Cycle 4.1 (2007) were used for this study (N = 64 397). LTPAEE was calculated using a metabolic equivalent (MET) value of 4.0 for all activities in the “other activity” category for method 1 (currently employed by Statistics Canada) and using activity-specific MET values for method 2. The weighted prevalence and 95% confidence intervals of active (≥3  kcal·kg–1·day–1 (kkd)), moderately active (1.5–2.9 kkd), and inactive (<1.5 kkd) were determined for each method by demographic characteristics. The agreement between the 2 methods was assessed overall, and for light, moderate, and vigorous activities. There was no difference between methods in the proportion classified as active, moderately active, or inactive for any of the subgroups studied and there was no difference in the distribution or mean LTPAEE between methods. However, assessment of the agreement showed a large number of outliers and a tendency to underestimate LTPAEE from light and vigorous activities while overestimating LTPAEE from moderate activities at the individual level. The results of this study should be considered when performing inferential statistics on the relationship between physical activity and health outcomes.

Assessment of physical activity in older individuals: a doubly labeled water study

1999 ◽  
Vol 86 (6) ◽  
pp. 2090-2096 ◽  
Author(s):  
Raymond D. Starling ◽  
Dwight E. Matthews ◽  
Philip A. Ades ◽  
Eric T. Poehlman
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Older Women ◽  
Indirect Calorimetry ◽  
Leisure Time Physical Activity ◽  
Older Men ◽  
Daily Physical Activity ◽  
Physical Activity Energy Expenditure ◽  
Doubly Labeled Water ◽  
Activity Energy

We compared the accuracy of two physical activity recall questionnaires and a motion detector in 45- to 84-yr-old women ( n = 35) and men ( n = 32), using doubly labeled water (DLW) in conjunction with indirect calorimetry as the criterion measure. Subjects were administered the Yale Physical Activity Survey (YPAS) and Minnesota Leisure Time Physical Activity Questionnaire (LTA). Physical activity energy expenditure was determined over a 10-day period by using a Caltrac uniaxial accelerometer and DLW in conjunction with indirect calorimetry. In older women, Minnesota LTA (386 ± 228 kcal/day) and Caltrac (379 ± 162 kcal/day) underestimated physical activity by ∼55% compared with DLW (873 ± 244 kcal/day). No difference was observed between daily physical activity measured by the YPAS (863 ± 447 kcal/day) and DLW in older women. In older men, Minnesota LTA (459 ± 288 kcal/day) and Caltrac (554 ± 242 kcal/day) underestimated daily physical activity by ∼50–60% compared with DLW (1,211 ± 429 kcal/day). No difference was found between physical activity measured by the YPAS (1,107 ± 612 kcal/day) and DLW in older men. Despite no difference in mean physical activity levels between YPAS and DLW in women and men, Bland and Altman ( Lancet 1: 307–310, 1986) analyses demonstrated poor concordance between DLW and YPAS (i.e., limits of agreement = −1,310–1,518 kcal/day). Our data suggest that the Minnesota LTA recall and Caltrac uniaxial accelerometer may significantly underestimate free-living daily physical activity energy expenditure in older women and men. Although the YPAS compares favorably with DLW on a group basis, its use as a proxy measure of individual daily physical activity energy expenditure may be limited in older women and men.

Sign in / Sign up

Export Citation Format

Share Document