Dataset Information

A Dyadic Action Control Trial in Overweight and Obese Couples (DYACTIC).

ABSTRACT:

Background

Enhancing physical activity in overweight and obese individuals is an important means to promote health in this target population. The Health Action Process Approach (HAPA), which was the theoretical framework of this study, focuses on individual self-regulation variables for successful health behavior change. One key self-regulation variable of this model is action control with its three subfacets awareness of intentions, self-monitoring and regulatory effort. The social context of individuals, however, is usually neglected in common health behavior change theories. In order to integrate social influences into the HAPA, this randomized controlled trial investigated the effectiveness of a dyadic conceptualization of action control for promoting physical activity.

Methods/design

This protocol describes the design of a single-blind randomized controlled trial, which comprises four experimental groups: a dyadic action control group, an individual action control group and two control groups. Participants of this study are overweight or obese, heterosexual adult couples who intend to increase their physical activity. Blocking as means of a gender-balanced randomization is used to allocate couples to conditions and partners to either being the target person of the intervention or to the partner condition. The ecological momentary intervention takes place in the first 14 days after baseline assessment and is followed by another 14 days diary phase without intervention. Follow-ups are one month and six months later. Subsequent to the six-months follow-up another 14 days diary phase takes place.The main outcome measures are self-reported and accelerometer-assessed physical activity. Secondary outcome measures are Body Mass Index (BMI), aerobic fitness and habitual physical activity.

Discussion

This is the first study examining a dyadic action control intervention in comparison to an individual action control condition and two control groups applying a single-blind randomized control trial. Challenges with running couples studies as well as advantages and disadvantages of certain design-related decisions are discussed. This RCT was funded by the Swiss National Science Foundation (PP00P1_133632/1) and was registered on 27/04/2012 at http://www.isrctn.com/ISRCTN15705531.

SUBMITTER: Scholz U

PROVIDER: S-EPMC4364646 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

A Dyadic Action Control Trial in Overweight and Obese Couples (DYACTIC).

Scholz Urte U Berli Corina C

BMC public health 20141224

<h4>Background</h4>Enhancing physical activity in overweight and obese individuals is an important means to promote health in this target population. The Health Action Process Approach (HAPA), which was the theoretical framework of this study, focuses on individual self-regulation variables for successful health behavior change. One key self-regulation variable of this model is action control with its three subfacets awareness of intentions, self-monitoring and regulatory effort. The social cont ...[more]

PMID: 25540972

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Project description:Keeping a physically active lifestyle requires consistent self-regulatory effort such as action control (e.g., continuously monitoring and evaluating a behavior in terms of one's goals). Involving the romantic partner in interventions might be particularly effective in the long run. The present study examined the long-term and transfer effects of an action control intervention in couples using text messaging for promoting target persons' and partners' physical activity, anthropometric measures and physical fitness 6 months post baseline. A total of 121 overweight and obese romantic couples, randomly allocated to an intervention (n = 60; information + action control text messages) or a control group (n = 61; information only) and to participating as target person or partner, completed baseline assessments (T1). 100 couples (82.6%) completed the 6-month follow-up (T3) assessment. Primary outcomes included self-reported moderate-to-vigorous physical activity (MVPA) and objective MVPA and MVPA adherence using triaxial accelerometers across a diary period of 14 days after T3. Secondary outcomes included BMI, waist-to-hip circumference and physical fitness (target persons only) using a submaximal aerobic cycle test. At T3, there were no significant between-group differences between target persons and partners with regard to their objective MVPA, self-reported MVPA, BMI, waist-hip ratio or physical fitness. No significant changes in outcomes were observed from T1 to T3; however, changes in BMI from T1 to T3 between target persons and partners in the intervention group were associated. Overall, the brief 14-days action control intervention was not effective in improving target person's physical activity, body measures and physical fitness in the long-term. Moreover, no long-term benefits for partners emerged. While brief ecological momentary interventions might be a promising tool for short-term effects, future studies are needed to test features enhancing long-term effectiveness. Associations in romantic partners' changes suggest that dyadic interventions can be a promising approach, as changes induced in one partner may then transfer over to the other (controlled-trials.com ISRCTN15705531).

Project description:ImportanceA diagnosis of young-onset dementia (YOD) is a life-altering event for both persons with dementia and their spousal caregivers. Dyadic coping (DC) theoretical models acknowledge that dyads cope with stressors as a unit, but these models have yet to be used in YOD.ObjectiveTo explore the lived experiences of couples managing YOD using an integrated DC model.Design, setting, and participantsThis qualitative study recruited couples from a single major medical setting and through social media. Eligibility criteria included cohabitation, 1 partner diagnosed with YOD and able to participate, and both partners willing to participate. Live online video interviews were conducted from March to June 2020.ExposuresOne semistructured interview, which was recorded and subsequently transcribed. Recruitment was stopped once thematic saturation was reached.Main outcomes and measuresFive themes were deductively derived based on the integrated DC framework, including stress communication, positive individual DC, positive conjoint DC, negative individual DC, and negative conjoint DC. Within each theme, subthemes were inductively identified to further characterize couples' dyadic coping experiences with YOD.ResultsA total of 23 couples were interviewed, comprising persons with dementia (11 women [48%]; mean [SD] age, 61.3 [4.65] years; mean [SD] time from diagnosis, 3.11 [3.85]) years; and spousal caregivers (13 women [57%]; mean [SD] age, 60.5 [5.40] years). Data supported the 5 a priori DC themes and novel subthemes describing couples' experiences with YOD. Specifically, couples enacted positive conjoint DC by approaching challenges using a teamwork approach to problem solving and relying on collaborative communication. In contrast, couples engaged in negative conjoint DC through mutual avoidance, leading to increased negative communication and conflict. Couples described initially engaging in avoidance and withdrawal to navigate YOD-related stressors. While these strategies provided short-term relief from challenging emotions, they prevented engagement in adaptive coping (eg, acceptance and collaborative problem-solving) to promote long-term adjustment.Conclusions and relevanceThis study used an evidence-based integrated DC approach to identify the positive and negative coping behaviors of couples managing YOD. To our knowledge, this is the first study to use a DC framework to guide qualitative analysis, and it provides valuable insights into DC strategies used by couples navigating YOD-related stressors. Findings can inform the development of dyadic psychosocial services for couples managing YOD and have implications for other progressive illnesses.

Dataset Information

A Dyadic Action Control Trial in Overweight and Obese Couples (DYACTIC).

Background

Methods/design

Discussion

Publications

A Dyadic Action Control Trial in Overweight and Obese Couples (DYACTIC).

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