Demographics indicate that the United States and many other industrialized nations are currently experiencing what is called the ¡°graying¡± of the workforce (Hayslip & Panek, 1993). Today the majority of the workers in many companies are in the age groups of 40-44 and 45-49 years. However, by the year 2010, the largest proportion of workers will probably be in the age groups of 55-59 and 60-64 years (Ilmarinen, 1995). Thus, a growing concern of employers in the near future will be the assignment of older workers to specific job tasks and responsibilities (Williams & Crumpton, 1996) as well as other issues pertinent to the employment of older workers. As workers age they typically experience physiological and psychological changes which must be estimated to minimize the mismatch between their capabilities and job demands as well as to prevent work related injuries such as over exertion injuries. Early identification of declines in work ability and implementation of ergonomic interventions are key to sustaining older and more experienced workers in the workplace (Williams et al., 1996). If preventive measures are not taken, older employees are likely to experience a decline in work capacities (Ilmarinen, 1994). Therefore, reliable and valid measures of one¡¯s ability to perform physical work activities are essential for preventing work-related injuries. Hence, the focus of this research project is to develop a diagnostic tool that can be used by employers to estimate their workers¡¯ ability to perform daily work activities. Specifically, the Williams Work Estimator (W2E) is designed to provide information concerning workers¡¯ ability to perform physical work activities such as lifting, lowering, pushing, pulling, etc. A field research study involving 32 employees at a beer distribution warehousing facility was conducted to evaluate the following attributes of the W2E: (a) test-retest reliability, (b) concurrent criterion validity, and (c) predictive validity. Test-retest reliability of the W2E was assessed using Pearson correlation coefficients. The overall correlation coefficients obtained on both the task evaluation (.64) and the self-evaluation (.58) were near minimal acceptable levels (.60 or greater) for each job task evaluated. In addition, the W2E ranged from 50 to 100% accurate when identifying persons who had experienced a work-related injury within the past year. Findings of this research study suggest the W2E represents a promising new tool for assessing work capability and deserves further study to improve reliability and validity.

Abstract Unemployed are known to be in poorer health and to use less health care services compared to those employed. However, evidence on the work ability of the unemployed remains scarce. The methods of assessing work ability are very divergent, not least because a shared understanding on the concept of work ability is lacking. Furthermore, the aspect of marginalization gives rise to further challenges when assessing work ability among the unemployed. This study explored the work ability of long-term unemployed, their needs for medical care and rehabilitation as well as the methods of assessing work ability. The aims were to find out to which amount and how the work ability was restricted among the unemployed and to clarify the needs for medical care and rehabilitation among them. Additionally, differences between the methods for assessing the disease-oriented and multidimensional work ability, as well as the need for rehabilitation were analysed. Both qualitative and quantitative methods were used in this multi-method research in three different studies. The multidimensional work ability assessments were conducted among long term unemployed individuals in three Labour Force Service Centres (Oulu, Raahe region and Kainuu) and in one municipality (Paltamo). Furthermore, an illustrated case study was conducted to compare the materials and background theories of disease-oriented and multidimensional work ability assessment methods. The work ability was significantly decreased for a great proportion of long term unemployed, mostly because of mental disorders. In one municipality, 27% of the long term unemployed were found disabled for open labour market, in addition 20% of them were considered to need medical care and rehabilitation to enable return to work. By using multidimensional work ability assessment method, restrictions in work ability as well as the needs for rehabilitation appeared to get identified more accurately than by using the disease-oriented method. The latter had missed potential rehabilitation avenues and had led to under-rehabilitation, misrehabilitation and over-rehabilitation. The results indicate that the practices of assessing work ability should be based on biopsychosocial and not only on biomedical approach of health and therefore existing information from the multidisciplinary network concerning the clients’ functioning should be routinely collected and used. The health care services as well as the work ability assessment procedures should be tailored to meet the special needs of the long term unemployed to support their work ability and potential of returning to work. / Tiivistelmä Työttömien terveydentila on heikompi ja he käyttävät vähemmän terveyspalveluja kuin muu samanikäinen väestö. Sen sijaan työttömien työkyvystä ei ole olemassa kattavaa tutkimustietoa. Toisaalta työkyvyn arvioinnin menetelmät ovat epäyhtenäiset, koska työkyvyn käsitteestäkään ei ole yhtenäistä ymmärrystä. Syrjäytymiseen liittyvät ilmiöt aiheuttavat työttömien työkyvyn arviointiin omat erityishaasteensa. Tämän tutkimuksen kohteena olivat pitkäaikaistyöttömien työkyky, sairauksien hoitoon ja kuntoutukseen liittyvät tarpeet sekä työkyvyn arvioinnin menetelmät. Tavoitteena oli selvittää, kuinka suurella osalla ja millä tavoin pitkäaikaistyöttömien työkyky on heikentynyt sekä minkälaista hoidon ja kuntoutuksen tarvetta heillä on. Lisäksi selvitettiin sairauslähtöisen ja monialaisen työkyvyn ja kuntoutustarpeen arvioinnin eroja. Monimenetelmätutkimuksen kolmessa osatutkimuksessa käytettiin sekä laadullisia että määrällisiä menetelmiä. Aineistoina olivat kolmen työvoiman palvelukeskuksen (Oulu, Raahen seutukunta ja Kainuu) ja yhden kunnan (Paltamo) alueella asuville vaikeasti työllistyville henkilöille monialaisesti toteutetut työkyvyn arvioinnit. Lisäksi aineistona analysoitiin sairauslähtöisessä ja monialaisessa työkyvyn arvioinnissa käytettävät tietoaineistot ja tulokset yhdellä esimerkkiasiakkaalla havainnollistaen. Suurella osalla pitkäaikaistyöttömistä työkyky oli merkittävästi heikentynyt, sairausluokista eniten mielenterveyden häiriöiden takia. Yhden kunnan kaikista pitkäaikaistyöttömistä todettiin avoimille työmarkkinoille työkyvyttömiksi 27 % ja näiden lisäksi 20 %:lla todettiin työkykyä kohentavan hoidon ja kuntoutuksen tarvetta. Monialaisen arviointimallin avulla tunnistettiin työkyvyn heikkeneminen ja kuntoutustarve osuvammin kuin perinteisellä sairauslähtöisellä toimintatavalla, joka hukkaa kuntoutuksen potentiaalia ja johtaa alikuntoutukseen, väärinkuntoutukseen tai ylikuntoutukseen. Tulosten perusteella työkyvyn arvioinnin käytännöt tulisi perustaa biopsykososiaaliseen eikä vain biomedikaaliseen terveyskäsitykseen ja niissä tulisi nykyistä enemmän hyödyntää monialaisessa verkostossa olevaa informaatiota tutkittavan toimintakyvystä. Työkyvyn tukemiseksi työttömien terveyspalvelut sekä työkyvyn ja kuntoutustarpeen arvioinnit tulisi aiempaa enemmän suunnitella ja kohdentaa pitkäaikaistyöttömien erityistarpeet huomioiden.