Campus Units

Psychology

Document Type

Article

Publication Version

Published Version

Publication Date

5-2017

Journal or Book Title

Psychology of Sport and Exercise

Volume

30

First Page

55

Last Page

63

DOI

10.1016/j.psychsport.2017.01.008

Abstract

Objective: E-diaries and accelerometers promise more objective, real-time measurements of health behavior. However, social-psychological theory suggests that using electronic behavioral monitoring may influence rather than just record physical activity (PA), especially when a device is novel.

Design: Participants (n = 146) were randomly assigned to either an accelerometer-only, e-diary-only, accelerometer + e-diary, or a no-technology control group for one week to assess how these technologies influenced PA, both perceived and actual, in young adults.

Method: Participants reported their PA, overall and number of discrete exercise sessions (DES) at baseline and follow-up; accelerometers provided daily step counts and e-diaries captured daily reports of PA for the active week of the study.

Results: Average daily steps in the accelerometer-only and accelerometer + e-diary groups did not differ nor did daily reports of PA via e-diary compared to accelerometer + e-diary group, showing that neither technology affected actual PA. ANCOVAS tested group differences in perceived PA; The accelerometer-only group had increased perceived overall PA but not DES compared to no-technology control.

Conclusions: Accelerometers may increase perceived overall PA, but the tested technologies did not increase DES or actual PA, suggesting that they may be viable unbiased measures of PA.

Comments

This article is published as Eisenberg, Miriam H., L. Alison Phillips, Lauren Fowler, and Philip J. Moore. "The impact of E-diaries and accelerometers on young adults' perceived and objectively assessed physical activity." Psychology of Sport and Exercise 30 (2017): 55-63. DOI: 10.1016/j.psychsport.2017.01.008.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

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