TY - JOUR AU - Knaier, Raphael AU - Höchsmann, Christoph AU - Infanger, Denis AU - Hinrichs, Timo AU - Schmidt-Trucksäss, Arno PY - 2019 DA - 2019/02/28 TI - Validation of automatic wear-time detection algorithms in a free-living setting of wrist-worn and hip-worn ActiGraph GT3X+ JO - BMC Public Health SP - 244 VL - 19 IS - 1 AB - Wrist-worn accelerometers are increasingly used in epidemiological studies to record physical activity. The accelerometer data are usually only analyzed if the convention for compliant wear time is met (i.e. ≥ 10 h per day) but the algorithms to detect wear time have been developed based on data from hip-worn devices only and have not been tested in a free-living setting. The aim of this study was to validate the automatic wear time detection algorithms of one of the most frequently used devices in a free-living setting. SN - 1471-2458 UR - https://doi.org/10.1186/s12889-019-6568-9 DO - 10.1186/s12889-019-6568-9 ID - Knaier2019 ER -