Reliability and validity of a new accelerometer-based device for detecting physical activities and energy expenditure.

ABSTRACT:

Background

Objective assessments of sedentary behavior and physical activity (PA) by using accelerometer-based wearable devices are ever expanding, given their importance in the global context of health maintenance. This study aimed to determine the reliability and validity of a new accelerometer-based analyzer (Fibion) for detecting different PAs and estimating energy expenditure (EE) during a simulated free-living day.

Methods

The study consisted of two parts: a reliability (n = 18) and a validity (n = 19) test. Reliability was assessed by a 45 min protocol of repeated sitting, standing, and walking (i.e., 3 × 15 min, repeated twice), using both Fibion and ActiGraph. Validity was assessed by a 12 h continuous sequence tasks of different types (sitting, standi

SUBMITTER: Yang Y 

PROVIDER: S-EPMC6186411 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature