Research Topics
| John StaudenmayerSummaryAffiliation: University of Massachusetts Country: USA Publications
| Collaborators
|
Detail Information
Publications
Measurement error in a random walk model with applications to population dynamicsJohn Staudenmayer
Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003, USA
Biometrics 62:1178-89. 2006..We also examine the practical implications of the methods by using them to analyze two existing population dynamics data sets...
A study of indoor carbon dioxide levels and sick leave among office workersTheodore A Myatt
Department of Environmental Health, Harvard School of Public Health, 665 Huntington Ave, Boston, MA 02115, USA
Environ Health 1:3. 2002..This study was undertaken to explore this association...
Segmented regression in the presence of covariate measurement error in main study/validation study designsJohn Staudenmayer
Department of Mathematics and Statistics, University of Massachusetts, Lederle Graduate Research Tower, Amherst, Massachusetts 01003, USA
Biometrics 58:871-7. 2002....
Statistical considerations in the analysis of accelerometry-based activity monitor dataJohn Staudenmayer
Department of Mathematics and Statistics, University of Massachusetts, Amherst, MA 010003, USA
Med Sci Sports Exerc 44:S61-7. 2012....
An artificial neural network to estimate physical activity energy expenditure and identify physical activity type from an accelerometerJohn Staudenmayer
Dept of Mathematics and Statistics, Univ of Massachusetts, Lederle Graduate Research Center, Amherst, MA 01003, USA
J Appl Physiol 107:1300-7. 2009..This novel approach of applying ANNs for processing Actigraph accelerometer data is promising and shows that we can successfully estimate activity METs and identify activity type using ANN analytic procedures...
Evaluation of artificial neural network algorithms for predicting METs and activity type from accelerometer data: validation on an independent samplePatty S Freedson
Dept of Kinesiology, University of Massachusetts, Amherst, Massachusetts, USA
J Appl Physiol 111:1804-12. 2011..We propose the creation of an open-access activity dictionary, including accelerometer data from a broad array of activities, leading to further improvements in prediction accuracy for METs, activity intensity, and activity type...
Validity of the Omron HJ-112 pedometer during treadmill walkingRebecca E Hasson
Department of Kinesiology, University of Massachusetts, Amherst, MA, USA
Med Sci Sports Exerc 41:805-9. 2009..The purpose of this investigation was to examine the validity of step counts measured with the Omron HJ-112 pedometer and to assess the effect of pedometer placement...
Errors in MET estimates of physical activities using 3.5 ml x kg(-1) x min(-1) as the baseline oxygen consumptionSarah Kozey
Dept of Kinesiology, University of Massachusetts, Amherst, MA, USA
J Phys Act Health 7:508-16. 2010..To compare intensity misclassification and activity MET values using measured RMR (measMET) compared with 3.5 ml x kg(-1) x min(-1) (standMET) and corrected METs [corrMET = mean standMET x (3.5 / Harris-Benedict RMR)] in subgroups...
The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office WorkersSarah Kozey-Keadle
Department of Kinesiology, University of Massachusetts, Amherst, MA 01003, USA
J Obes 2012:282303. 2012..These data describe ST measurement properties from wearable monitors and self-report tools to inform sample-size estimates for future ST interventions...
Development of novel techniques to classify physical activity mode using accelerometersDavid M Pober
Department of Exercise Science, Exercise Physiology Laboratory, University of Massachusetts, Amherst, MA 01003, USA
Med Sci Sports Exerc 38:1626-34. 2006....
Validation of wearable monitors for assessing sedentary behaviorSarah Kozey-Keadle
Department of Kinesiology, University of Massachusetts, Amherst, MA, USA
Med Sci Sports Exerc 43:1561-7. 2011..The purpose of this study was to examine the validity of commercially available monitors to assess SB...
Modeling observation error and its effects in a random walk/extinction modelJohn P Buonaccorsi
Department of Mathematics and Statistics and Graduate Program in Organismic and Evolutionary Biology Lederle Graduate Research Tower, University of Massachusetts, Amherst MA, 01003 9305, USA
Theor Popul Biol 70:322-35. 2006..This discussion recognizes that the bias and variance in observation errors may change over time, the result of changing sampling effort or dependence on the underlying population being sampled...
