Theoretical examination of behavioural feedback in the application of teledietetics to weight reduction

Louisa Ming Yan Chung · Shirley S.M. Fong · Queenie Pui Sze Law · Ada W. W. · Lina P.Y. Chow · Joanne W. Y. Chung

3 citations0/0 files storedJournal of Telemedicine and Telecare

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Behavioral Health and Interventions Telemedicine and Telehealth Implementation Mobile Health and mHealth Applications

Abstract

INTRODUCTION: Behavioural feedback can be attained through electronic self-monitoring with teledietetics. This study examined the theoretical framework of the theory of planned behaviour, which suggests that behavioural feedback contributes to the intention to initiate and maintain weight loss. METHODS: A quasi-experiment involving adults aged 20-50 years with a body mass index greater than 23 kg/m(2) was conducted. The experimental group (EG) comprised 25 participants who used electronic dietary records for self-monitoring. The control group (CG) comprised 25 participants who used paper-format dietary records for self-monitoring. Data pertaining to the theory of planned behaviour were obtained using a self-administered questionnaire. After an initial measurement, each participant's body weight was measured again at Week 12 and at Week 24, following a 12-week observation period. Hierarchical regression analyses of planned behaviour components were conducted for each power to predict the participants' intentions to lose 10% of their body weight. Logistic regression analysis was performed to investigate the odds ratio of intention, perceived behavioural control (PBC) and the group effect (CG vs EG) for predicting the initiation and maintenance of 10% weight loss. RESULTS: At Week 12, the odds ratios for intention, the PBC and the group effect were 2.154, 0.330 and 0.654, respectively, and those at Week 24 were 3.255, 0.499 and 24.592, respectively. The group effect contributed significantly to weight-loss maintenance at Week 24. DISCUSSION: Behavioural feedback through electronic self-monitoring improved the intention to achieve weight-loss maintenance, which may indicate the importance of behaviour reflection in weight-loss maintenance.

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1991The theory of planned behavior 1988Attitudes, Personality and Behavior 1985Intention, perceived control, and weight loss: An application of the theory of planned behavior.2000The cognitive impact of past behavior: Influences on beliefs, attitudes, and future behavioral decisions.2000The theory of planned behaviour and healthy eating: Examining additive and moderating effects of social influence variables 2007Planning to lose weight: Randomized controlled trial of an implementation intention prompt to enhance weight reduction among overweight and obese women.2007Predicting short-term weight loss using four leading health behavior change theories 2015Predicting actual weight loss: A review of the determinants according to the theory of planned behaviour

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