eISSN: 2228-6497  
Submitted: 01 Mar 2016
Accepted: 14 Mar 2016
First published online: 11 Jun 2016
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Health Promot Perspect. 2016;6(2):58-65.
doi: 10.15171/hpp.2016.11
PMID: 27386419
PMCID: PMC4932223

Original Article

Testing multi-theory model (MTM) in predicting initiation andsustenance of physical activity behavior among college students

Vinayak K. Nahar 1 * , Manoj Sharma 2, Hannah Priest Catalano 3, Melinda J. Ickes 4, Paul Johnson 5, M. Allison Ford 6

1 Department of Health, Physical Education, and Exercise Science, School of Allied Health Sciences, Lincoln Memorial University, Harrogate, TN, USA
2 Behavioral & Environmental Health, School of Public Health, Jackson State University, MS, USA
3 Public Health Studies, School of Health and Applied Human Sciences, University of North Carolina Wilmington, NC, USA
4 Department of Kinesiology and Health Promotion, College of Education, University of Kentucky, KY, USA
5 Department of Management, School of Business Administration, University of Mississippi, MS, USA
6 Department of Health, Exercise Science & Recreation Management, School of Applied Sciences, University of Mississippi, MS, USA

Abstract

Background: Most college students do not adequately participate in enough physical activity(PA) to attain health benefits. A theory-based approach is critical in developing effective interventions to promote PA. The purpose of this study was to examine the utility of the newly proposed multi-theory model (MTM) of health behavior change in predicting initiation and sustenance of PA among college students.

Methods: Using a cross-sectional design, a valid and reliable survey was administered in October 2015 electronically to students enrolled at a large Southern US University. The internal consistency Cronbach alphas of the sub-scales were acceptable (0.65-0.92). Only those who did not engage in more than 150 minutes of moderate to vigorous intensity aerobic PA during the past week were included in this study.

Results: Of the 495 respondents, 190 met the inclusion criteria of which 141 completed the survey. The majority of participants were females (72.3%) and Caucasians (70.9%). Findings of the confirmatory factor analysis (CFA) confirmed construct validity of sub-scales (initiation model: χ2 = 253.92 [df = 143], P < 0.001, CFI = 0.91, RMSEA = 0.07, SRMR = 0.07; sustenance model: χ2= 19.40 [df = 22], P < 0.001, CFI = 1.00, RMSEA = 0.00, SRMR = 0.03). Multivariate regression analysis showed that 26% of the variance in the PA initiation was explained by advantages outweighing disadvantages, behavioral confidence, work status, and changes in physical environment. Additionally, 29.7% of the variance in PA sustenance was explained by emotional transformation, practice for change, and changes in social environment.

Conclusion: Based on this study’s findings, MTM appears to be a robust theoretical framework for predicting PA behavior change. Future research directions and development of suitable intervention strategies are discussed.

Citation: Nahar VK, Sharma M, Catalano HP, Ickes MJ, Johnson P, Ford MA. Testing multi-theory model (MTM) in predicting initiation and sustenance of physical activity behavior among college students. Health Promot Perspect. 2016;6(2):58-65. doi: 10.15171/hpp.2016.11.
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