Abstract
Aim : The aim of the present study was to analyze the reliability and factorial validity of the Portuguese Version of the Treatment Self-Regulation Questionnaire for physical activity (TSRQ-PA). Method: In this study, 148 healthy adults (Mean age = 44.70, 96.6% women) and 89 chronic fatigue patients (Mean age = 47.39, 97.8% women) filled out questionnaires related to behaviour regulation style (TSRQ – PA) and physical activity. Results : The confirmatory factor analysis adjustment indices of a two-factor structure (Autonomous Regulation scale and Controlled Regulation scale) of the TSRQ-PA were satisfactory and internal consistency estimates were acceptable for both factors. A higher degree of autonomous behaviour regulation was significantly associated with higher levels of physical activity. Conclusion : These findings provide support for the validity and reliability of the TSRQ – PA for measuring behaviour regulation style for engaging in physical activity, in different settings.
Highlights
Engaging in regular physical activity is considered to be beneficial for the health and well-being of people of all ages (Weinberg & Gould, 2007)
The main purpose of this study is to examine the factorial validity and reliability of a Portuguese version of the Treatment Self-regulation Questionnaire for Physical Activity (TSRQ-PA) across two different groups: a healthy population and a chronic fatigued (CF) population
Participants CF Group — The sample consisted of 89 chronic fatigue patients, meeting the Center for Disease Control (CDC) criteria for Chronic Fatigue (CDC; Fukuda, Straus, Hickie, Sharpe, Dobbins, & Komaroff, 1994), aged between 18 and 65 (M = 47.39; SD = 10.96), 87 (97.8%) women and 2 (2.2%) men
Summary
Engaging in regular physical activity is considered to be beneficial for the health and well-being of people of all ages (Weinberg & Gould, 2007). 60% of the adults in the Western world are not physically active on a regular basis (Seefeldt, Malina, & Clark, 2002). In a recent “Eurobarometer” on physical activity (European Commission, 2010), 14% of the adults in EU countries reported not to engage in any form of moderate physical activity (e.g. cycling at a normal pace) and of those who reported to be physically active only 27% were regular exercisers. Physical activity is a complex behaviour influenced by a variety of determinants, such as personal and physical activity characteristics, environmental factors, and cognitive variables (Dishman & Buckworth, 1997) such as motivation (e.g. behaviour regulation style)
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