Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older...
Transcript of Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older...
![Page 1: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/1.jpg)
Caloric Expenditure Assessment Among
Older Adults Sarah T Stahl, and Salvatore P Insana
University of Pittsburgh, Pittsburgh, PA West Virginia University, Morgantown, WV
Caitlin Heffley Clinical Nutrition Student
![Page 2: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/2.jpg)
Physical Activity ! Associated with
successful aging
! Reduces the likelihood of chronic diseases
! Increases functional health
! Promotes social engagement
! Better psychological health
Meisner et al.
![Page 3: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/3.jpg)
![Page 4: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/4.jpg)
The Issue ! What duration and intensity is
needed to produce a desired effect?
! Need valid measurement tools
! Difficulty with self report
! CHAMPS Questionniare
! Accelerometers
![Page 5: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/5.jpg)
Purpose ! To examine the
validity of a new accelerometry device (Fitbit), by comparing the Fitbit-calculated kcal to subjective estimations of kcal using CHAMPS among a sample of healthy, older adults.
![Page 6: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/6.jpg)
Hypothesis ! FitBit is a more accurate estimate of
kcal expenditure as a result of physical activity in older adults than CHAMPS.
![Page 7: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/7.jpg)
Subjects ! Subjects recruited via email and word of mouth
from West Virginia University faculty and staff
! 16 adults volunteered to participate ! 1 declined due to time constraints
! 2 lost the FitBit ! 3 failed to transmit FitBit data to a computer
! Disrupted data collection among 33% of the total sample
! Received $25 for study compensation
![Page 8: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/8.jpg)
Sample
! Sample size: 10 adults ! 60-68 years old (M=63.8, SD= 3.17 ) ! Men, married, employed at a University (educated)
! Caucasian Health status ! BMI of 24.5 (SD= 4.17)
! Health conditions include arthritis (50%), sleeping problems (50%), and hypertension (40%)
! Scale of 1 (very good) to 6 (very poor) rated health as “good)
![Page 9: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/9.jpg)
Methods Subjective measurement
! CHAMPS ! Frequency and duration of 40 physical activities ! Each task assigned a MET (metabolic equivalent)
value ! BMR calculated using Harris-Benedict equation ! Total kcal/day measured
![Page 10: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/10.jpg)
![Page 11: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/11.jpg)
Methods (Objective)
! FitBit ! Measures body movement ! Age, sex, height, weight
entered ! Wore device all waking
hours for 10 days
! Kcal values averaged across 10 day period to obtain total kcal/day
![Page 12: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/12.jpg)
Results ! CHAMPS data
! Subjects engaged in 3.3 activities (SD=0.98) daily ! 1.8 (SD=0.85) were moderate-intensity activities
! Common activities: Light housework (80%) Walking to do errands (60%)
Walking leisurely for exercise/pleasure (60%) Walking hiking uphill (80%)
Heavy strength training (50%)
![Page 13: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/13.jpg)
Results ! BMR= 1545.97 (SD = 272.66) kcal/day
! Self-reported expending 708.12 (SD = 430.83) kcal/day in physical activities
! Averaged total daily caloric expenditure (CHAMPS) was 2254.08 (SD = 574.53) kcal/day.
! Averaged accelerometry-measured (FitBit) caloric expenditure was 2059.10 (SD = 315.35) kcal/day.
! The Fitbit underestimated kcal/day by an average of 194.99 (SD = 459.21) kcal.
![Page 14: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/14.jpg)
![Page 15: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/15.jpg)
Discussion ! Fitbit
! underestimated kcal/day among 70% of participants ! Overestimated kcal/day among 30% of participants
! Future research needed with more diverse samples of older adult populations
Limitations:
! Small homogenous sample, 33% lost to error
! 30% of data greater than 1 SD over mean the mean difference between measurement methods ! FitBit not specifically designed for older adults
![Page 16: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/16.jpg)
Limitations ! Small homogenous sample, 33% lost to error ! 30% of data greater than 1 SD over mean
! FitBit not specifically designed for older adults ! Comparative validity studies needed
![Page 17: Caloric Expenditure Assessment Among Older Adults · Caloric Expenditure Assessment Among Older Adults Sarah T Stahl, and Salvatore P Insana University of Pittsburgh, Pittsburgh,](https://reader036.fdocuments.us/reader036/viewer/2022081401/5f07395e7e708231d41bed31/html5/thumbnails/17.jpg)
Questions