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Sedentary Sphere: Wrist-Worn Accelerometer-Brand Independent Posture Classification
GENEACTIV ACTIGRAPH ACTIVPAL SITTING TRIAXIAL
2017/4/13
Introduction: Access to raw acceleration data should facilitate comparisons between accelerometer outputs regardless of monitor brand.
Purpose: To evaluate the accuracy of posture classification usin...
Tri-Axial Accelerometer-Determined Daily Physical Activity and Sedentary Behavior of Suburban Community-Dwelling Older Japanese Adults
Tri-axial accelerometer physical activity sedentary behavior community-based study older adults
2016/1/11
Knowledge regarding accelerometer-derived physical activity (PA) and sedentary behavior (SED) levels is scarce for Japanese older adults. The aims of this study were therefore to 1) describe levels of...
Relationships Between Accelerometer-Assessed Physical Activity and Health in Children: Impact of the Activity-Intensity Classification Method
ActiGraph activity guidelines MVPA thresholds
2015/4/21
It is unknown whether relationships detected between physical activity intensity and health differ according to accelerometer thresholds used [sample-specific thresholds (SSTs), published thresholds (...
Energy Expenditure Prediction Using Raw Accelerometer Data in Simulated Free Living
ACCELEROMETRY MACHINE LEARNING ARTIFICIAL NEURAL NETWORK PHYSICAL ACTIVITY
2017/4/19
Purpose: The purpose of this study was to develop, validate, and compare energy expenditure (EE) prediction models for accelerometers placed on the hip, thigh, and wrists using simple accelerometer fe...
Obtaining Accelerometer Data in a National Cohort of Black and White Adults
PHYSICAL ACTIVITY ADULTS PARTICIPATION LONGITUDINAL STUDIES MEASUREMENT
2017/4/19
Purpose: The objective of this study is to report methodological details and feasibility of conducting an accelerometer ancillary study in a large US cohort being followed for stroke and cognitive dec...
Estimating Physical Activity in Youth Using a Wrist Accelerometer
MOTION SENSOR PHYSICAL ACTIVITY OXYGEN CONSUMPTION ACTIVITY COUNTS VARIABILITY
2017/4/19
Purpose: The purpose of this study was to develop and validate methods for analyzing wrist accelerometer data in youth.
Methods: A total of 181 youth (mean ± SD; age, 12.0 ± 1.5 yr) completed 30 min ...
Comparison of Step Outputs for Waist and Wrist Accelerometer Attachment Sites
WALKING EXERCISE ASSESSMENT SURVEILLANCE MEASUREMENT
2017/4/19
Purpose: The objective of this study is to compare step outputs obtained from waist and wrist accelerometer attachment sites under laboratory and free-living conditions.
Methods: Under the laboratory...
EMG, Heart Rate, and Accelerometer as Estimators of Energy Expenditure in Locomotion
TEXTILE,ELECTRODES EMG,CLOTHING ENERGY,EXPENDITURE PHYSICAL,ACTIVITY INACTIVITY ACCELERATION
2017/5/24
Precise measures of energy expenditure (EE) during everyday activities are needed. This study assessed the validity of novel shorts measuring EMG and compared this method with HR and accelerometry (AC...
Cross-validation of Waist-Worn GENEA Accelerometer Cut-Points
PHYSICAL,ACTIVITY ENERGY,EXPENDITURE ACTIVITY,MONITOR ACCELEROMETRY
2017/5/24
The purpose of this study was to determine the classification accuracy of the waist gravity estimator of normal everyday activity (GENEA) cut-points developed by Esliger et al. for predicting intensit...
Age Group Comparability of Raw Accelerometer Output from Wrist- and Hip-Worn Monitors
PHYSICAL,ACTIVITY OBJECTIVE,MONITORING ACTIVITY,MONITORS CHILDREN ADULTS
2017/5/24
The study aims were to compare raw triaxial accelerometer output from ActiGraph GT3X+ (AG) and GENEActiv (GA) placed on the hip and the wrist and to develop regression equations for estimating energy ...
Novel Resonant Accelerometer with Micro Leverage Fabricated by MEMS Technology
accelerometer resonator micro-fabrication sensor
2011/8/4
For the purpose of improving the precision of the inertial guidance system, it is necessary to enhance the accuracy of the accelerometer. Combining the micro-fabrication processes with resonant sensor...
Novel Resonant Accelerometer with Micro Leverage Fabricated by MEMS Technology
accelerometer resonator micro-fabrication sensor
2011/8/4
For the purpose of improving the precision of the inertial guidance system, it is necessary to enhance the accuracy of the accelerometer. Combining the micro-fabrication processes with resonant sensor...