Physical Activity Measurement Survey (PAMS) Study
Overview of the Project and the Team
The Physical Activity Measurement Study (PAMS) was designed to understand measurement errors associated with the use of physical activity recall instruments. The project was funded from an NIH R01 grant (R01
HL91024-01A1) and multiple manuscripts are still being prepared. The primary goal of the PAMS was to develop a measurement error model to correct for errors associated with a 24-hours physical activity recall (24PAR) relative to the SenseWear Armband (SWA) from a representative sample of adults (n=1486). An extensive set of socio-demographic/ physical activity variables was obtained from the participants. This allows for comprehensive understandings of underlying characteristics of physical activity and sedentary behaviors assessed with the 24PAR and SWA.
The PAMS project relied on interdisciplinary collaborative work among 3 parties of Iowa State University: Department of Kinesiology, Department of Statistics, and Survey and Behavioral Research Services (SBRS). Researchers from Kinesiology (Dr. Gregory Welk; Primary Investigator) and Statistics (Drs. Sarah Nusser and Alicia Carriquiry; Co-primary investigators) conceptualized and constructed the overall study protocol/ methodology. The SBRS was mainly involved in the data collection process. Click here to learn more about PAMS. |
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Preliminary Findings
- Measurement errors inherent in using the 24PAR would be corrected with the measurement error modeling developed.
- Population-level estimates of energy expenditure from the 24PAR are similar to those from the SWA. In estimating MVPA minutes, however, the 24PAR did not provide estimates equivalent to the SWA.
- The use of the 24PAR provided context information of physical activity such as location and purpose, both of which cannot be assessed with objective monitoring tools. Moreover, the 24PAR provided a list of most frequently occurring MVPAs along with location and purpose information.
- Population-level estimates of energy expenditure from the 24PAR are similar to those from the SWA. In estimating MVPA minutes, however, the 24PAR did not provide estimates equivalent to the SWA.
- The use of the 24PAR provided context information of physical activity such as location and purpose, both of which cannot be assessed with objective monitoring tools. Moreover, the 24PAR provided a list of most frequently occurring MVPAs along with location and purpose information.
Requesting Access to the Data
The data set along with the code book and study manual are being currently prepared for sharing with the public. If you have any specific questions about the data, please contact gwelk@iastate.edu
Published Articles
Welk GJ, Kim Y, Stanfill B, Osthus DA, Calabro AM, Nusser SM, Carriquiry A. (2014) Validity of 24-h Physical Activity Recall: Physical Activity Measurement Survey. Medicine and Science in Sports and Exercise. 2014 Feb 19. PMID:24561818 Click here
Nusser SM, Beyler NK, Welk GJ, Carriquiry AL, Fuller WA, King B MN. (2012) Modeling errors in physical activity recall data. Journal of Physical Activity Health. Suppl 1:S56-67. PMID:22287449 Click here
Nusser SM, Beyler NK, Welk GJ, Carriquiry AL, Fuller WA, King B MN. (2012) Modeling errors in physical activity recall data. Journal of Physical Activity Health. Suppl 1:S56-67. PMID:22287449 Click here
Conference Abstracts
Lee, J.M., Kim, Y.W., Nusser, S., Carriquiry, A., & Welk, G.J. (2013). Effect of seasonality and temperature on free-living physical activity: PAMS Project. Paper presented at the American College of Sports Medicine 60th Annual Meeting, Indianapolis, IN
Peters , B., Kim, Y.W., Welk, G.J., Nusser, S., Carriquiry, A., Calabró, A., & Lee, J.M. (2013). The context of physical activity in a representative sample of adults: Physical Activity Measurement Survey. Paper presented at the American College of Sports Medicine 60th Annual Meeting, Indianapolis, IN.
Welk, G.W., Nusser, S., Carriquiry, A., Calabró, A., & Kim, Y.W.(2012). Measurement Error in a 24 Hour Physical Activity Recall Instrument: Descriptive Results from the Physical Activity Measurement Survey (PAMS) project. Paper presented at the 8th International Conference on Diet and Activity Method in Rome, Italy.
Peters , B., Kim, Y.W., Welk, G.J., Nusser, S., Carriquiry, A., Calabró, A., & Lee, J.M. (2013). The context of physical activity in a representative sample of adults: Physical Activity Measurement Survey. Paper presented at the American College of Sports Medicine 60th Annual Meeting, Indianapolis, IN.
Welk, G.W., Nusser, S., Carriquiry, A., Calabró, A., & Kim, Y.W.(2012). Measurement Error in a 24 Hour Physical Activity Recall Instrument: Descriptive Results from the Physical Activity Measurement Survey (PAMS) project. Paper presented at the 8th International Conference on Diet and Activity Method in Rome, Italy.
