Abstract

Introduction
In the last decades, the workplace has gradually been more acknowledged as a core arena for interventions aiming at promoting health and preventing disability [1–3].
A first example of this acknowledgement is the frequent use of Workplace or Worksite Health Promotion Programs (WHPP), built on a Public Health tradition, aiming at improving employees’ health and lifestyle (i.e., physical activity, healthy eating, weight loss, relaxation, smoking, and drug/alcohol use). The body of knowledge assessing WHPP’s effectiveness is increasing [4–6]. A systematic review found more than 300 trials of WHPP published between 2000 and 2012 [5]. Still, the effectiveness of such interventions is for several of the targeted lifestyle changes inconclusive or non-consistent [5–8]. One review even found that high-quality trials tended to report smaller effects than low-quality trials [8].
A second example is Individual Placement Support(IPS), aiming at increasing participation in work, among groups with larger work disability challenges [9]. Inspired by the recovery ideology, the paradigm shift in the 80’s in psychiatric vocational rehabilitation from “train then place” to “place then train” changed the field, and IPS became the new paradigm [9, 10]. Competitive employment became the goal, and lengthy pre-employment training was replaced with rapid job search. This made us design “placement interventions” at real workplaces, where the efficient Supported Employment [11, 12] is a great example. To train first and most at workplaces, not in clinics is therefore common today in psychiatric rehabilitation.
A third example is treatment of musculoskeletal disorders (MSD). “Disease prevention” in the mid-1990’s suggested to be replaced with “disability prevention”, by which workplace foci were strengthened [13–15]. Ten years ago, we were still asking if workplace interventions were an effective means for secondary prevention of low back pain [16]. Today, we know more and judge workplace-based efforts as main solutions for reducing sick leave and return to work for sick-listed employees with MSD and common mental disorders [17–21]. The Workplace Disability Prevention and Integration (WDPI) community of researchers is these days building a strong body of knowledge about workplace-based efforts worldwide, as still much is unknown. For example, we do not know why workplace interventions seem to reduce sick leave and promote return to work, but not affect health outcomes [3, 19].
Together with these three examples of changes towards strengthened focus on workplace-based efforts, we also need to mention Disability Management strategies (DM) [22–24]. DM was from the start an employer’s commitment to ensure the continued employment and accommodation of employees who experience functional limitations. Employer-based disability management programs grew out of the realization that the solution to occupational disability problems are in the employment setting (i.e. workplaces), and that employers themselves could contribute to reducing disability. Today, DM organizations such as the National Institute for Disability Management and Research (NIDMAR) and Universities such as Pacific Coast University for Workplace Health Science (PCU-WHS) are educating Return to Work coordinators and Disability Managers in over 12 countries [25]. These professionals have today an important role in workplaces efforts to promote health and prevent disability [26].
Unifying fields
It seems like the effort of building best practice has been a huge challenge in these entire fields. Workplaces are housing complex organizations and environments, which also imply complex human interactions in physical, social, and attitudinal environments [27]. To answer questions as “who”, “where”, “when”, and “how” seems to be difficult. So, even though it seems like WHPP, IPS, WDPI, and DM are different fields, with different target groups, terminology, meeting points, actors, programs, and agendas, we might ask is if these fields and traditions could or should interact more to build a common research and innovation agenda for the future?
Some might argue that they already are moving in the same direction, and a few examples will be mentioned here: From using IPS only towards those with severe mental diseases [12] and head injuries [28], IPS is now applied for groups with different disorders, even MSD [29]. From solely reducing Low Back Pain (LBP), an outspoken message today in the WDPI-field is that most components of interventions need to be developed regardless of what type of disorders the employee have [30]. The WHPP tradition is increasingly measuring outcomes about the consequences on disability (e.g. sick leave and return to work), not only the individuals’ habitual or health outcomes. This effort is in line with earlier developments in the IPS and WDPI fields. In the fields of IPS and DM, the use of sheltered workplaces versus real workplaces for training work abilities has commonly being discussed. This might also be an important issue for WDPI. In addition, all fields are today facing the unsolved gap between science and practices providing workplace-based interventions, known as Knowledge Translation [31] and Implementation Science [5]. Different fields might therefore seem to be unified and melted into a need for one common research and innovation agenda for the future.
Diversifying workplace-based efforts
Simultaneously, as arguing for unification, we will point at the need for diversification of workplace-based efforts. Even though we today know some about health promotion and disability prevention at workplaces, there are still many dimensions unknown and unexplored. And the interventions vary to a large extent, and are vague in the explanations of their effectiveness. We will give some examples here, from this special issue of Work.
Innovating the future through establishing a common research agenda
The workplace is where adults spend the majority of their time. Both health promotion, and disability prevention, integration and management efforts at workplaces can secure that more adults participate in working life. Environmental factors are prerequisites for the enhancing the ability of people to participate in a healthy way that builds work capital of workers at the workplace. By applying a participation perspective as described in ICF [27] we might take actions towards a common research agenda for the future, where new knowledge are integrated [24], and used more cumulatively for a common stronger research front.
These shifts towards stronger workplace foci have also had impact on social and welfare policy and legislation in the industrial world. One example is the Norwegian Inclusive Working Life Agreement, negotiated between employer’s organization, the trade union and the government, and signed in 2001, 2005, 2010, and 2014 [36]. The agreement has three goals: to reduce sick leave, to promote inclusion of disabled, and to enable elderly workers to stay longer in work. All three goals call for a strong workplace offensive. Workplace-based practices have begun to change in accordance, but the actualities of change are a slower process.
Occupational rehabilitation is still in many places mostly focused on changing the individual, not their workplace environments [37]. In line, the traditional gap between interventions towards those with and without an employer might also be less dominant for the future, and supplemented with different types of workplaces, used as arenas for health promotion and disability prevention.
Why and how workplaces seem to have such impact on employees’ habits, health, and participation possibilities is also one question for a common future research agenda. However, when different fields seek to be more unified, it seems like we need to diversify workplace-based efforts and interventions. This will enhance the international and cross organizational research efforts to find new solutions on how workplace aspects can benefit from targeted and outcome focused health promotion and disability prevention programs in the future. If, and to what extend these fields; WHPP, IPS, WDPI, and DM are interacting, sharing, and cumulating knowledge is not known. To be able to grasp all types of insight into a highly complex and diverse phenomenon as workplace-based efforts are, unifying the research agenda might be important for our future innovation strength.
