TY  - JOUR
PY  - 2019//
TI  - Accelerometry data in health research: challenges and opportunities
JO  - Statistics in biosciences
A1  - Karas, Marta
A1  - Bai, Jiawei
A1  - Strączkiewicz, Marcin
A1  - Harezlak, Jaroslaw
A1  - Glynn, Nancy W.
A1  - Harris, Tamara
A1  - Zipunnikov, Vadim
A1  - Crainiceanu, Ciprian
A1  - Urbanek, Jacek K.
SP  - 210
EP  - 237
VL  - 11
IS  - 2
N2  - Wearable accelerometers provide detailed, objective, and continuous measurements of physical activity (PA). Recent advances in technology and the decreasing cost of wearable devices led to an explosion in the popularity of wearable technology in health research. An ever-increasing number of studies collect high-throughput, sub-second level raw acceleration data. In this paper, we discuss problems related to the collection and analysis of raw accelerometry data and refer to published solutions. In particular, we describe the size and complexity of the data, the within- and between-subject variability, and the effects of sensor location on the body. We also discuss challenges related to sampling frequency, device calibration, data labeling and multiple PA monitors synchronization. We illustrate these points using the Developmental Epidemiological Cohort Study (DECOS), which collected raw accelerometry data on individuals both in a controlled and the free-living environment.<p />  <p>Language: en</p>
LA  - en
SN  - 1867-1764
UR  - http://dx.doi.org/10.1007/s12561-018-9227-2
ID  - ref1
ER  -