Structural equation model of psychological constructs of transtheoretical model, motives for physical activity, and amount of physical activity among people with type 2 diabetes mellitus in Malaysia

• Published in: PloS one Vol. 17; no. 3; p. e0266104
• Main Authors: Hidrus, Aizuddin, Kueh, Yee Cheng, Norsa'adah, Bachok, Kim, YoungHo, Chang, Yu-Kai, Kuan, Garry
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 31.03.2022; Public Library of Science (PLoS)
• Subjects: Biology and Life Sciences; Care and treatment; Clinics; Cross-Sectional Studies; Data analysis; Data collection; Diabetes; Diabetes mellitus; Diabetes mellitus (non-insulin dependent); Diabetes Mellitus, Type 2; Disease; Exercise; Exercise - psychology; Health aspects; Health care; Hospitals; Humans; Malaysia; Male; Medical research; Medicine and Health Sciences; Middle Aged; Modelling; Monte Carlo simulation; Motivation; Multivariate statistical analysis; Participation; Physical activity; Physical fitness; Physical training; Questionnaires; Research and Analysis Methods; Research methodology; Sampling methods; Social Sciences; Structural equation modeling; Theoretical constructs; Transtheoretical Model; Type 2 diabetes; Malaysia; Taiwan
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0266104

This study aimed determine the structural relationship between psychological constructs of the transtheoretical model (TTM; processes of change, decisional balance, and exercise self-efficacy), motives for physical activity (PA), and amount of PA among Malaysians with type 2 diabetes mellitus (T2DM). All participants were recruited from the Hospital Universiti Sains Malaysia using a cross-sectional study design with purposive) sampling method. A total of 331 participants were recruited for the present study. Before participation in the study, they were informed that participation in the study was totally voluntary. Those who agreed to participate voluntarily were required to complete the self-administered questionnaire set, which included the processes of change, decisional balance, exercise self-efficacy, physical activity and leisure motivation, and international physical activity questionnaires. Data analysis of structural equation modeling was performed using Mplus 8. From the 331 participants, most of whom were male (52%) and Malay (89.4%), with a mean age of 62.6 years (standard deviation = 10.29). The final structural equation model fit the data well based on several fit indices [Root Mean Square Error of Approximation (RMSEA) = 0.059, Comparative Fit Index (CFI) = 0.953, Tucker-Lewis Index (TLI) = 0.925, Standardized Root Mean Square Residual (SRMR) = 0.031]. A total of 16 significant path relationships linked between the TTM, motives for PA, and amount of PA. The pros of decisional balance, others' expectations, and psychological condition were constructs that directly affected PA, whereas the other constructs had a significant indirect relationship with the amount of PA. A positive mindset is crucial in deciding a behavioral change toward an active lifestyle in people with T2DM.