Validity of the Polar M430 Activity Monitor in Free-Living Conditions: Validation Study.

ABSTRACT:

Background

Accelerometers, often in conjunction with heart rate sensors, are extensively used to track physical activity (PA) in research. Research-grade instruments are often expensive and have limited battery capacity, limited storage, and high participant burden. Consumer-based activity trackers are equipped with similar technology and designed for long-term wear, and can therefore potentially be used in research.

Objective

We aimed to assess the criterion validity of the Polar M430 sport watch, compared with 2 research-grade instruments (ActiGraph and Actiheart), worn on 4 different locations using 1- and 3-axis accelerometers.

Methods

A total of 50 participants wore 2 ActiGraphs (wrist and hip), 2 Actihearts (upper and lower chest position), and 1 Polar M430 spor

SUBMITTER: Henriksen A 

PROVIDER: S-EPMC6716339 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature