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© 2021. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Objective

For individuals with overweight/obesity, internalized weight bias (IWB) is linked to low physical activity (PA). This study used a laboratory‐based paradigm to test the hypothesis that IWB moderates the association between heart rate (HR) and perceived exertion and affect during PA.

Methods

Participants with overweight/obesity completed 30‐min of supervised moderate‐intensity treadmill walking (65%–75% of age‐predicted maximal HR). Body Mass Index (BMI) and Weight Bias Internalization Scale were assessed at baseline. HR was monitored every minute; perceived exertion and affect were assessed every 5 min. Linear mixed models were employed with random effects of time and participant.

Results

The sample (n = 59; 79.7% female, 91.5% white) had an average BMI = 32.1 kg/m2 (SD: 3.3), and age = 47.1 (SD: 10.3) years. There was a main effect of IWB on perceived exertion (greater IWB was associated with greater perceived exertion during exercise; p < 0.001). There was an interaction of IWB and HR on affect (B = −0.01, p < 0.01). For individuals with high IWB, HR elevations were associated with a negative affective response during exercise. For individuals with low IWB, HR elevations were associated with increased positive affect during PA.

Conclusions

Findings indicate that among individuals of higher body weight, IWB is associated with reporting higher perceived exertion during 30 min of moderate intensity PA. IWB moderated the relationship between increasing HR during exercise and affect. Among individuals with overweight/obesity who report IWB, the initial experience of PA may be harder and more unpleasant, with lasting implications for the adoption of PA.

Details

Title
Internalized weight bias is associated with perceived exertion and affect during exercise in a sample with higher body weight
Author
Olson, KayLoni L 1   VIAFID ORCID Logo  ; Goldstein, Stephanie P 1 ; Wing, Rena R 1 ; Williams, David M 2 ; Demos, Kathryn E 1 ; Unick, Jessica L 1   VIAFID ORCID Logo 

 Department of Psychiatry and Human Behavior, Brown Medical School, Providence, Rhode Island, USA; Weight Control and Diabetes Research Center, The Miriam Hospital, Providence, Rhode Island, USA 
 Brown School of Public Health, Providence, Rhode Island, USA 
Pages
405-414
Section
ORIGINAL ARTICLES
Publication year
2021
Publication date
Aug 2021
Publisher
John Wiley & Sons, Inc.
e-ISSN
20552238
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2558847672
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.