Breaking barriers: using the behavior change wheel to develop a tailored intervention to overcome workplace inhibitors to breaking up sitting time
BMC Public Health volume 19, Article number: 1126 (2019)
The workplace is a prominent domain for excessive sitting. The consequences of increased sitting time include adverse health outcomes such as cardiovascular disease and poor mental wellbeing. There is evidence that breaking up sitting could improve health, however, any such intervention in the workplace would need to be informed by a theoretical evidence-based framework. The aim of this study was to use the Behaviour Change Wheel (BCW) to develop a tailored intervention to break up and reduce workplace sitting in desk-based workers.
The BCW guide was followed for this qualitative, pre-intervention development study. Semi-structured interviews were conducted with 25 office workers (26–59 years, mean age 40.9 [SD = 10.8] years; 68% female) who were purposively recruited from local council offices and a university in the East of England region. The interview questions were developed using the Theoretical Domains Framework (TDF). Transcripts were deductively analysed using the COM-B (Capability, Opportunity, Motivation – Behaviour) model of behaviour. The Behaviour Change Technique Taxonomy Version 1 (BCTv1) was thereafter used to identify possible strategies that could be used to facilitate change in sitting behaviour of office workers in a future intervention.
Qualitative analysis using COM-B identified that participants felt that they had the physical Capability to break up their sitting time, however, some lacked the psychological Capability in relation to the knowledge of both guidelines for sitting time and the consequences of excess sitting. Social and physical Opportunity was identified as important, such as a supportive organisational culture (social) and the need for environmental resources (physical). Motivation was highlighted as a core target for intervention, both reflective Motivation, such as beliefs about capability and intention and automatic in terms of overcoming habit through reinforcement. Seven intervention functions and three policy categories from the BCW were identified as relevant. Finally, 39 behaviour change techniques (BCTs) were identified as potential active components for an intervention to break up sitting time in the workplace.
The TDF, COM-B model and BCW can be successfully applied through a systematic process to understand the drivers of behaviour of office workers to develop a co-created intervention that can be used to break up and decrease sitting in the workplace. Intervention designers should consider the identified BCW factors and BCTs when developing interventions to reduce and break up workplace sitting.
Due to modernisation of society and technological advancements, there is now heavy reliance on computers in the workplace resulting in occupations being less physically demanding and more sedentary [1, 2]. Sedentary behaviour is any waking activity, such as sitting, reclining or lying which expends less than 1.5 metabolic equivalents . From an operational standpoint, prolonged sitting at a desk is the type of sedentary behaviour typically observed in the office workplace. Seventy-three percent of the UK population aged 16–64 are currently in employment [4, 5] with a large number of these workers in office-related jobs . Studies have identified that the workplace contributes to the majority of excessive daily sitting time in office-based employees [7, 8]. Self-reported occupational sitting time has been estimated at 6 h 30 min (IQR = 6 h 20–6 h 45 min) on a work day , which is in accordance with objective measurements of workplace sitting suggesting 71%  to 82% of the workday is spent seated . Due to growing epidemiological evidence linking excessive sitting time to adverse cardiometabolic outcomes, such as cardiovascular disease, obesity, type 2 diabetes [6, 12,13,14,15,16,17] and poor mental wellbeing [13, 18,19,20], the workplace has become an important public health concern.
Two observational studies have shown that daily participation in moderate-to-vigorous physical activity (MVPA) for 60–75 min a day may eliminate the increased risk of premature mortality associated with high amounts of sitting [21, 22]. However, the majority of the population do not engage in such high levels of MVPA [23, 24]. For those who are unable to achieve these high levels of MVPA, and in order to mitigate the remaining cardiometabolic health risks, the workplace could be a potential intervention environment to break up and reduce excessive sitting [25,26,27]. To develop effective interventions to reduce and break up sitting, it is pertinent to understand what works and why .
Theoretical framework underpinning the intervention design
Interventions targeted at changing behaviour need to be informed by theoretical, evidence-based frameworks. The Medical Research Council  has outlined recommendations that should be used when developing and evaluating complex interventions. These guidelines state that interventions should start with a theory phase before progressing to modelling and then an experimental phase [29,30,31]. Whilst this current work focuses on modelling, the theory phase involves the collection of evidence and analyses via theoretical frameworks through which an intervention can be developed and modelled. The modelling stage involves hypothesising what should be targeted (determinants of behaviour) and how this can be achieved (via behaviour change techniques) . A wide range of theoretical models of behaviour have been developed including the Theory of Planned Behaviour  and the Health Belief Model . One common limitation of these theories is that they only help to understand or predict behaviours  and do not help to understand behaviour change  or develop interventions.
In order to help researchers transition from the behavioural diagnosis of a problem to the design of an intervention, the Behaviour Change Wheel (BCW) was developed [37, 38] from 19 behaviour change frameworks. At the hub of the BCW is the COM-B model (Fig. 1), addressing Capability, Opportunity, and Motivation sources of Behaviour. The BCW recognises that behaviour change occurs as a result of an interacting system with intervention functions and policy categories as the second and outer layer of the wheel . The Theoretical Domains Framework (TDF)  has since been added to the BCW [40, 41] in order to help unpack COM-B further and allow deeper exploration of the barriers to and facilitators of change. The TDF includes constructs drawn from 33 behaviour change/psychological theories, to increase the understanding of behaviour to ensure the processes for change are targeted effectively . The TDF has 14 domains (‘Knowledge’, ‘Skills’, ‘Social/Professional Role and Identity’, ‘Beliefs about Capabilities’, ‘Optimism’, ‘Beliefs about Consequences’, ‘Reinforcement’, ‘Intentions’, ‘Goals’, ‘Memory, Attention and Decision Processes’, ‘Environmental Context and Resources’, ‘Social Influences’, ‘Emotions’ and ‘Behavioural Regulation’ ). It has been used to identify factors that predict adherence to guidelines and for structuring both interview questions [43, 44] and how data analysis are performed [45, 46]. Once detail from the BCW and TDF have been obtained, optimal behaviour change techniques (BCTs) can be identified .
While it is important to identify how a behaviour maps to COM-B, the intervention functions (that form the third layer of the BCW) selected as a result must also make practical considerations. One method that has been developed to assist researchers to narrow down feasible intervention functions is to consider Affordability, Practicability, Effectiveness and Cost-effectiveness, Acceptability, Side effects/safety and Equity through the APEASE criteria . Use of these criteria allow researchers to look beyond the BCW and explore feasibility issues before trialling an intervention. Using the BCW to design interventions is becoming more common, and it has been successfully used to understand behaviour change in different contexts, such as sexual counselling , medication management [49, 50], auditory rehabilitation , and physical activity . Development of interventions using the full BCW to reduce workplace sitting however, is limited, with only the Stand More AT Work (SMArT) study found to target hospital office workers . Ten behaviour change techniques that could be used to target individual, environmental and organisation level barriers to reducing sitting were identified in the SMArT study . This intervention decreased workplace sitting time by 50.6 min at 3 months and by 64.4 min at 6 months and with evidence of sustainable long-term positive effects on job performance . Therefore, further studies using this BCW framework are needed. The aim of this work is to develop, through qualitative interviews, a tailored intervention package using the BCW that could be used in future interventions to reduce and break up sitting time in desk-based employees.
Ethical approval was obtained from the University of Bedfordshire Institute for Health Research Ethics Committee (approval number IHREC610). The processes of intervention development have been broadly categorised into three stages over eight steps as recommended for the BCW  and illustrated in Fig. 2. This study briefly describes steps one through three for contextual purposes but focuses on steps four through eight for intervention development.
Step 1: define the problem in behavioural terms
The first step involves defining the problem of interest that requires intervention in behavioural terms. This means identifying the problem, and specifying the behaviour and target population . Previous evidence [10, 11, 55,56,57,58] suggests that increased sedentary time is a behavioural problem significantly associated with cardiometabolic risk and poor mental wellbeing [12, 16, 59]. With office workers engaging in sitting for approximately two-thirds of their total working time and their sitting bouts often lasting at least 30 min [6, 11, 60, 61], there are possibilities that the workplace may be a major contributor to increased cardiometabolic disease risk.
Step 2: select the target behaviour
This step explains that long lists of all other behaviours that may influence the target behavioural problem need to be generated. This can then be systematically reduced by considering the possible impact of each of these behaviours. For this research, behaviours such as physical activity, sedentary behaviour and sitting time were considered.
Step 3: specify the target behaviour
Step three specifies the target behaviour by outlining the new behaviour in greater detail. Specifications should include: who needs to perform the behaviour, what do the persons need to do differently, when, where, how, and with whom will they do it . In this research, the target behaviour is to break up and reduce sitting time at work which may follow guidelines in a recent expert statement , which states that office workers should initially reduce daily occupational sitting time by engaging in 2 h of standing or walking during working hours and gradually increasing this to 4 h per working day.
Step 4: identify what needs to change
The recommended method to understand what needs to change is interviews or focus group discussions , as this would ensure future interventions are participant-centred and co-created . This research aims to inform Step 4 by using semi-structured interviews to explore sitting behaviour in office workers drawing from both the COM-B and TDF. To achieve this, 25 office-based workers (26–59 years) with self-reported daily occupational sitting time of at least 5.5 h were purposively recruited from local council offices and a university in the East of England region and interviewed by one researcher (SO) in their respective offices. Questions asked in the interview were developed using the TDF  with each lasting between 30 to 60 min. Amendments were deemed not necessary following pilot interviews with three of the participants. Two researchers (SO & AC) independently coded the transcripts and maintained anonymity throughout by using pseudonyms . The COM-B model and TDF were employed as a combined deductive framework for the analysis covering all the relevant determinants of behaviour [66, 67]. Comparisons of codes were made, and discrepancies resolved by discussion to produce ‘behavioural diagnosis’ (a selection of barriers and facilitators) for breaking up and reducing prolonged sitting in the workplace. The interview data was managed using NVivo qualitative data analysis software (Version 10, QSR International, Melbourne, Australia) while SPSS (Version 23, IBM, Chicago, IL, USA) was used for descriptive data analysis of participant characteristics.
Step 5 and 6: identify intervention functions and policy categories
This study also aimed to identify relevant intervention functions and policy categories to be used following the COM-B and TDF analyses and how each of the intervention functions could be supported at an organisational level . The BCW guide recommends that intervention functions and policy categories should be assessed through the use of the APEASE criteria . However, as this screening process is largely contingent on resource availability, which might be different for intervention developers, the onus to use APEASE criteria would lie on individual intervention developers. In this present study, relevance of APEASE criteria is highlighted but not applied.
Step 7 and 8: identify behaviour change techniques and mode of delivery
The research finally aimed to identify the most appropriate BCTs that could result in the desired breaking up and reduction of workplace sitting. BCTs mentioned within the qualitative interviews were individually identified and selected for the development of a future intervention by two members of the team (SO and MB). These were then discussed with the rest of the research team led by AC for consensus. Then, the most appropriate mode of delivery of each technique was deliberated upon and selected by the authors. Examples of modes of delivery include face-to-face or distance delivery at the individual or group level via phone (voice or text), print or digital media, broadcast media, outdoor media, or individually accessed computer programmes .
Steps 1–3 have been described in the methods above. This research has generated new qualitative data from Steps 4–8 as described below.
Demographics of interview participants
The average age of the individuals who participated in the interviews was 40.9 ± 10.8 years, of which 68% were women, 56% White British, 68% university employees, and with an overall average body mass index of 25.7 ± 3.5 kg/m2.
Step 4: identifying what needs to change
Responses from the interviews have been categorised into capability, opportunity and motivation in line with the COM-B model and includes links to the TDF domains within the text.
The majority of participants said they are physically capable of breaking up their sitting time, although some highlighted that walking and standing trigger back problems.
“I’m quite capable and confident of breaking up my sitting time. I do that quite a lot … .” (Participant 15, female, in their 20’s).
“I’m sat down to help me improve my back muscles because standing or walking for too long can be detrimental for me” (Participant 24, female, in their 40’s).
With respect to psychological capability, all participants stated that it was important to understand how much sitting is acceptable or excessive, as well as the consequences of prolonged sitting and any benefits of breaking up sitting time. This highlighted knowledge and skills as important TDF domains that should be targeted in an intervention:
“If I'm really honest, I don't really know any current advice other than it's not good to sit down for too long … I think it would help if this is properly communicated” (Participant 10, female, in their 40’s).
Most of the participants reported being engrossed in their work to meet tight deadlines, and this usually leads to them forgetting to take breaks from sitting. However, some participants believed that having a device or an app to remind them would help them to be more conscious, reflecting the TDF domain memory, attention and decision processes. In contrast, some participants said their sitting behaviour would change if they were able to monitor it by themselves, underlining the need for interventions to target the behavioural regulation TDF domain.
“It’s just the amount of work, purely the amount of work that’s there. Also, not remembering to, because sometimes you become engrossed in a project, or in a piece of work … , your head is just focused on that piece of work … . It's a case of the workload. Maybe something that flashes up on the computer; that flashes up at me saying: ‘you've been working for this length of time, you know move now’ … .” (Participant 20, male, in their 40’s).
“I think you just forget yourself trying to beat the deadline! Probably if there was something that prompts, like setting an alarm on your phone or receiving a message on your phone to prompt you to move” (Participant 11, female, in their 40’s).
The participants identified some social opportunities that come from the TDF domain social influences, including restricting their colleagues from making tea for them to encourage them to get up more often to do it themselves, being part of a team to provide collective support and ensure a collective target is set, appointing someone like a fire marshal to remind people, or having walking and standing meetings.
“Again I suppose it would have to come from another person to sort of tell me, that ‘you have got to remember that you need to stand’ I think someone like a fire marshal would get the job done (smiles)” (Participant 2, female, in their 40’s).
“If it was a corporate activity, I am more likely to engage with it. If you are on your own, you are less likely to do it. Being encouraged by other people would help a great deal” (Participant 23, female, in their 50’s).
However, a popular opportunity amongst the participants was the need for an organisational culture that supports breaking up sitting to reassure employees that they will not be penalised if they stand up or leave their seat for a short while:
“It's about the whole [organisation] being aware of true key messages, I think it's about promoting positive culture of movement. And that comes through communication, variety of communication strategies, it’s about communicating every opportunity about good practice about healthy movement … . and I guess it's about being given permission” (Participant 19, male, in their 30’s).
“Just knowing that my manager is okay with me getting up every half hour should be enough really. Apart from that, I’m okay but it’s a busy period right now so I have to be on my desk … . I get that, so if my manager is okay with me standing up, going back and forth for two to three minutes then coming back, then it’s fine” (Participant 3, female, in their 20’s).
Creating the opportunity to influence the TDF domain environmental context and resources if cost was not a concern was highlighted by participants who suggested that a height-adjustable desk would be an important tool that could reduce their sitting in the workplace:
“I think a raising desk is something that is worth exploring, but I understand that financially that is a huge investment for the [organisation] but there has been a lot of studies into that … . If money was not a problem, you can get raising desks, you can have it raised or seated and I will be happy to try that” (Participant 8, male, in their 30’s).
Participants stated that the intervention should target both reflective and automatic motivation for behaviour change to take place. With regards to reflective motivation, around half of the participants reported that they felt in control of breaking up their sitting time, reflecting self-efficacy beliefs within the beliefs about capabilities TDF domain. For instance:
“On a scale of ‘1’ to ‘10’, with ‘10’ being the most confident; I would say my confidence level [to sit less] is ‘8’” (Participant 16, male, in their 50’s).
However, laziness and lack of will power was seen as a counter argument that may prevent them from doing so. In response, the participants highlighted they will need to change their mindset for a stronger commitment towards integrating movement and standing into their work life, which corresponds to the intention TDF domain.
“The right mindset! That's what I need to be able to stand up and walk at regular intervals” (Participant 22, female, in their 40’s).
Moreover, participants stated that they would respond to set goals if there was an expectation that they would be rewarded at the end, highlighting goals and reinforcement as important TDF domains.
“Well, I'm motivated by having a pound every time I get up, or, or a chocolate every time I get up … It wouldn't necessarily have to be money, it could be a, as I say, a kind of build credits for some sort of treats … ” (Participant 25, female, in their 40’s).
With respect to automatic motivation, the majority of the participants reported mixed perception about the effect of mood on their sitting time. Some participants said mood had no effect on their sitting time, while some thought it did. Either way, emotion appeared to be an important TDF domain that should be targeted.
“My job determines my sitting behaviour, but my mood doesn’t – no!” (Participant 10, female, in their 40’s).
“It’s two ways: sometimes when I am happy I tend to be quite chatty, so I move more to talk to people, but when I’m low in mood I can sit all day at my desk or move more keeping to myself” (Participant 6, male, in their 20’s).
Participants who perceived sitting time could be influenced by mood expressed that their optimism and motivation could be improved by having access to empirical evidence regarding the negative consequence of prolonged sitting.
“Generally, people value research evidence, statistics, so in terms of increasing motivation and hope, informational literature on consequence of excessive sitting I guess will make a difference” (Participant 23, female, in their 50’s ).
Participants also reported that they are likely to overcome the habit of sitting if there was competition among peers or if they were given incentives, underlining reinforcement as an important TDF domain.
“You could develop some sort of challenge type thing. Erm, you know, people like games or competitions or even being given vouchers. People can find that quite motivating from that point of view” (Participant 6, male, in their 20’s).
Steps 5 and 6: identification of intervention functions and policy categories
Seven out of nine intervention functions described in the BCW guide  were identified as relevant based on the outcomes of the semi-structured interviews, mapped from COM-B shown in Table 1. These intervention functions are; Education (defined as increasing knowledge and understanding), Training (defined as imparting skills), Persuasion (defined as a way of using communication to stimulating positive or negative feeling or action), Environmental restructuring (defined as changing the physical or social context), Enablement (defined as increasing means and reducing barriers to increase capability), Incentivisation (defined as creating an expectation of reward), and Modelling (defined as providing an example for imitation).
With respect to policy categories, only three out of the seven categories highlighted in the BCW guide  were identified. These included Communication/marketing (for instance, using verbal, electronic communication or flyers to create awareness of benefits of breaking up sitting and health consequences of prolonged sitting), Guidelines (examples of which include informing employees of sitting time guidelines), and Environmental/social planning (e.g, designing and controlling the logistics of height-adjustable desks within the office setting/office culture).
Step 7: identification of behaviour change techniques
BCTs are considered as ‘active components’ when designing an intervention. In total, 39 out of the 93 BCTs in the BCT Taxonomy Version 1  were identified from the interview data (Table 1). The list of BCTs identified include: ‘Instruction on how to perform the behaviour’, ‘Credible source’, ‘Information about health consequences’, ‘Information about social and environmental consequences’, ‘Feedback on behaviour’, ‘Behavioural practice/rehearsal’, ‘Behaviour substitution’, ‘Habit formation’, ‘Habit reversal’,’ Prompts/cues’, ‘Adding objects to the environment’, ‘Restructuring the physical environment’, ‘Self-monitoring of behaviour’, ‘Monitoring of behaviour by others without feedback’,’ Problem solving’, ‘Action planning’, ‘Body changes’, ‘Information about others’ approval’, ‘Social comparison’, ‘Restructuring the social environment’, ‘Social support (unspecified)’, ‘Social support (practical)’, ‘Demonstration of the behaviour’, ‘Goal setting’, ‘Verbal persuasion about capability’, ‘Mental rehearsal of successful performance’, ‘Material incentive (behaviour)’, ‘Material reward (behaviour)’, ‘Non-specific reward’, ‘Social reward’, Social incentive’, ‘Non-specific incentive’, ‘Self-reward’, ‘Information about emotional consequences’, ‘Reduce negative emotions’, ‘Self-monitoring of outcome(s) of behaviour’, ‘Behavioural experiments’, ‘Information about antecedents’ and ‘Incentive (outcome)’.
Intervention designers will need to select BCTs that are most appropriate for the population and location where the intervention will be conducted. This can be achieved by considering the APEASE criteria or by first choosing BCTs that were most frequently used within relevant intervention functions before those that were less frequently used as described in the BCW guide .
Step 8: mode of delivery
The appropriateness of mode of delivery depends on the target behaviour, target population and setting. Details on taxonomy of modes of delivery can be found in the BCW guide . APEASE criteria should be used in selecting mode of delivery of choice. This could be either face-to-face or distance depending on setting. Where employees are spread over different offices and different locations, interventions could be delivered face-to-face, in clusters or individually. This can be achieved by giving out leaflets with detailed information about breaking up sitting, sitting guidelines for office workers and demonstrated using digital media.
The aim of this work was to use qualitative interviews with desk-based employees to highlight aspects of the BCW that can be used to develop a tailored intervention package that could be employed in breaking up and reducing workplace sitting. This research describes the systematic process used to model determinants of workplace sitting behaviour by qualitatively analysing sources of behaviour with the COM-B/TDF model, linking to subsequent intervention functions and policy within the BCW, and finally, identifying the appropriate behaviour change techniques to use when developing a tailored intervention to break up office workers’ sitting time. The majority of the participants in this study were not aware of any published recommendations for reducing sitting in the workplace . However, participants expressed a keen interest in changing their sitting behaviour, suggesting that a workplace intervention targeted at sitting patterns would be acceptable.
The main reasons cited for prolonged sitting at work were the sedentary nature of the job, forgetfulness due to a heavy workload, an unsupportive physical workspace, and the organisational and social culture. These findings are consistent with previous studies that identified organisational cultural norms around “appropriate” workplace behaviour, environmental changes and workload pressures as barriers to breaking up workplace sedentary time [68,69,70]. The interview responses suggested that interventions should include education about sitting guidelines, health and emotional consequences of prolonged sitting and the benefits of reducing sitting time; prompts to serve as reminders to break up sitting; environmental modification, such as the provision of height-adjustable desks to alternate between sitting and standing without disrupting work; and changes to social and organisational support. Previous studies [71,72,73] have reported similar findings that breaks from prolonged sitting need to be seen as a “normal” activity in the workplace in order to prevent perceived criticism from colleagues. Organisational support would address this change. This could be an important strategy to prevent sedentary behaviour-induced diseases, due to a probable connection between social support, role-modelling, and social norms and the development of chronic diseases associated with prolonged sedentary behaviour .
In terms of the COM-B model, this study identified Psychological Capability, Social and Physical Opportunity as well as Reflective and Automatic Motivation as key targets for a behaviour change intervention for reducing and breaking up sitting time at work among office workers. In addition, the results from interviews with the participants suggested that Knowledge, Skills, Reinforcement, Goals, Intentions, Environmental context and resources, Social influences, Behavioural regulation, Emotion, and Memory, attention and decision processes were important TDF domains that need to be targeted in work-based sitting interventions. Consequently, seven intervention functions including Education, Training, Modelling, Persuasion, Enablement, Environmental restructuring and Incentivisation were identified as relevant for a sedentary workplace intervention. These results are in alignment with the SMArT study by Munir et al.  in which the BCW was also used to design a workplace sitting reduction intervention in hospital office workers. They identified the TDF domains of Knowledge, Social identity, Intentions, Beliefs about capabilities, and Self-regulation of behaviour, and consequently the key intervention functions of Education, Enablement, and Training. However, it should be noted that the present study identified a broader range of intervention functions due to the fact that the SMArT study applied the APEASE criteria to select the most relevant intervention function for the target population.
This study proposes 39 potential behaviour change techniques identified from this process. Several strategies that can be used to implement these behaviour change techniques include targeting cognitive memory by providing prompts and cues, offering rewards for successfully completing their target behaviour, providing information about breaking up sitting time and the consequences of prolonged sitting, providing access to height-adjustable desks, or reassuring employees of management support (see Table 2). Modifying the work environment through the introduction of active workstations has been found to effectively reduce sedentary behaviour in the workplace  without detrimental effects on work performance .
Consistent with the findings of this present study, Gardner, Smith  in their systematic review sub analysis of workplace interventions found 6 BCTs that frequently appeared in effective interventions to reduce sedentary behaviour: Review behavioural goals, Self-monitoring (behaviour), Instruction on how to perform behaviour, Information on health consequences, Behaviour substitution, and Adding objects to the environment. All but one of these BCTs, Review behavioural goals, was also found in the present study. The BCTs identified in this present study were identified from the qualitative data and it may be that Review behavioural goals was a BCT identified by interventionists from psychological theory sources. Therefore, when tailoring future interventions, researchers should consider including theoretically derived BCTs as well as those generated from the target population.
Strengths of the study
This paper presents novel qualitative data following a detailed systematic process consistent with recommendations of the Medical Research Council, which requires every complex intervention development to undergo three different phases including theory, modelling and the experimental phase [29,30,31]. This present study on modelling, and statements from interviews have been theoretically-evaluated using COM-B/TDF as described in the BCW guide . The barriers to breaking up and reducing sitting time identified in this current study and previous studies [68,69,70] are factors that operate at personal, social and environmental levels, which support a socio-ecological model of sedentary behaviour. This underlines the need for interventions to be targeted at multiple levels of influence on behaviour instead of targeting only individual, environmental or organisational factors. This current study goes beyond the socio-ecological model which only describes the levels at which to implement behaviour change strategies. Rather, this study identifies specific BCTs as ‘active ingredients’ which intervention designers can choose from and implement at relevant functional and policy levels in future workplace sedentary behaviour reduction interventions.
Limitations of the study
Worthy to note is the fact that people with a history of musculoskeletal problems were excluded from this study, which could mean that the findings are not relevant to those with such conditions. This limited an analysis of Physical Capability from COM-B, which is not present in the results. Second, the subjectivity of the analysis must be acknowledged, as with many qualitative studies in addition to concerns over external validity due to a relatively small sample size. However, it is believed that the recruitment of participants from two different office settings as well as the rigour applied to the study process and data analysis, suggests that the findings might be transferable to other sedentary office settings. Differences in participants’ demographics could introduce bias, however, a probable population heterogeneity effect would have been minimised by purposively targeting participants who were all desk-based office workers with self-reported high level sitting of at least 5.5 h per workday. Furthermore, despite the clear framework and direction available on the use of the BCW, the process itself was lengthy and time-consuming, particularly the coding of BCTs from the qualitative interviews and the elements of COM-B and the TDF derived from the data. Whilst efficiency of use appears to be a limitation presently, developments in machine learning will soon mean the tool is more accessible .
This study has identified possible components of a workplace intervention to break up and reduce sitting behaviour in the workplace based on the needs of office workers. This study emphasises the need for interventions to be targeted at multiple levels of influence on behaviour. Consequently, 39 BCTs have been identified and can be used as active ingredients in preparation for targeting the key determinants (Psychological Capability, Physical and Social Opportunity and Reflective and Automatic Motivation) of sitting behaviour in the workplace. Sedentary behaviour intervention designers should apply the APEASE criteria to determine the most appropriate intervention functions, policy categories and BCTs to use, drawing on the evidence presented here that identifies what needs to change. Future research can use the insight and modelling from this paper to test the effectiveness of an intervention based on the findings presented here, during an experimental phase as suggested by the Medical Research Council. This next phase could then provide an empirical basis for sitting behaviour policy implementation in the workplace.
Availability of data and materials
The datasets during and/or analysed during the current study available from the corresponding author on reasonable request.
Affordability, Practicability, Effectiveness and Cost-effectiveness, Acceptability, Side effects/safety and Equity
Behaviour change techniques
Behaviour Change Wheel
Capability, Opportunity, Motivation – Behaviour
Moderate-to-vigorous physical activity
Theoretical Domains Framework
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We would like to thank Professor Susan Michie and her Behaviour Change Team for giving us permission to reproduce the Behaviour Change Wheel in Fig. 1 and for their leadership in the ongoing development of behaviour change science.
No funding was received for this study. Therefore, no funding sponsors had any role in the design, data collection, data analysis and interpretation and publication of this study.
Ethics approval and consent to participate
Ethical approval was obtained from the University of Bedfordshire Institute for Health Research Ethics Committee (approval number IHREC610) in April 2016. Participants provided written consent to participate in this study.
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The authors declare that they have no competing interests.
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Ojo, S.O., Bailey, D.P., Brierley, M.L. et al. Breaking barriers: using the behavior change wheel to develop a tailored intervention to overcome workplace inhibitors to breaking up sitting time. BMC Public Health 19, 1126 (2019). https://doi.org/10.1186/s12889-019-7468-8
- Sedentary behaviour
- Sitting time
- Behaviour change wheel