Murray CJL, Vos T, Lozano R, Naghavi M, Flaxman AD, Michaud C, et al. Disability-adjusted life years (DALYs) for 291 diseases and injuries in 21 regions, 1990–2010: a systematic analysis for the global burden of disease study 2010. Lancet. 2012;380(9859):2197–223.
Hunter DJ, Schofield D, Callander E. The individual and socioeconomic impact of osteoarthritis. Nat Rev Rheumatol. 2014;10(7):437–41.
GBD 2017 DALYs and HALE Collaborators. Global, regional, and national disability-adjusted life-years (DALYs) for 359 diseases and injuries and healthy life expectancy (HALE) for 195 countries and territories, 1990–2017: a systematic analysis for the Global Burden of Disease Study 2017. Lancet Lond Engl. 2018;392(10159):1859–922.
Hawker GA, Stewart L, French MR, Cibere J, Jordan JM, March L, et al. Understanding the pain experience in hip and knee osteoarthritis--an OARSI/OMERACT initiative. Osteoarthr Cartil. 2008;16(4):415–22.
Xiang L, Low AHL, Leung YY, Fong W, Gan WH, Graves N, et al. Work disability in rheumatic diseases: baseline results from an inception cohort. Int J Rheum Dis. 2020;23(8):1040–9.
Stewart WF, Ricci JA, Chee E, Morganstein D, Lipton R. Lost productive time and cost due to common pain conditions in the US workforce. JAMA. 2003;290(18):2443–54.
Kingsbury SR, Gross HJ, Isherwood G, Conaghan PG. Osteoarthritis in Europe: impact on health status, work productivity and use of pharmacotherapies in five European countries. Rheumatol Oxf. 2014;53(5):937–47.
Nakata K, Tsuji T, Vietri J, Jaffe DH. Work impairment, osteoarthritis, and health-related quality of life among employees in Japan. Health Qual Life Outcomes. 2018;16(1):64.
Agaliotis M, Fransen M, Bridgett L, Nairn L, Votrubec M, Jan S, et al. Risk factors associated with reduced work productivity among people with chronic knee pain. Osteoarthr Cartil. 2013;21(9):1160–9.
Hubertsson J, Petersson IF, Thorstensson CA, Englund M. Risk of sick leave and disability pension in working-age women and men with knee osteoarthritis. Ann Rheum Dis. 2013;72(3):401–5.
Bannuru RR, Osani MC, Vaysbrot EE, Arden NK, Bennell K, Bierma-Zeinstra SMA, et al. OARSI guidelines for the non-surgical management of knee, hip, and polyarticular osteoarthritis. Osteoarthr Cartil. 2019;27(11):1578–89.
Thorstensson CA, Garellick G, Rystedt H, Dahlberg LE. Better Management of Patients with osteoarthritis: development and Nationwide implementation of an evidence-based supported osteoarthritis self-management Programme. Musculoskeletal Care. 2015;13(2):67–75.
Jönsson T, Eek F, Dell’Isola A, Dahlberg LE, Ekvall HE. The better Management of Patients with osteoarthritis program: outcomes after evidence-based education and exercise delivered nationwide in Sweden. PLoS One. 2019;14(9):e0222657.
Kraus VB, Sprow K, Powell KE, Buchner D, Bloodgood B, Piercy K, et al. Effects of physical activity in knee and hip osteoarthritis: A systematic umbrella review. Med Sci Sports Exerc. 2019;51(6):1324–39.
Sharma L, Cahue S, Song J, Hayes K, Pai Y-C, Dunlop D. Physical functioning over three years in knee osteoarthritis: role of psychosocial, local mechanical, and neuromuscular factors. Arthritis Rheum. 2003;48(12):3359–70.
Chopp-Hurley JN, Brenneman EC, Wiebenga EG, Bulbrook B, Keir PJ, Maly MR. Randomized controlled trial investigating the role of exercise in the workplace to improve work ability, performance, and patient-reported symptoms among older workers with osteoarthritis. J Occup Environ Med. 2017;59(6):550–6.
Nyrop KA, Charnock BL, Martin KR, Lias J, Altpeter M, Callahan LF. Effect of a six-week walking program on work place activity limitations among adults with arthritis. Arthritis Care Res. 2011;63(12):1773–6.
WHO | Information sheet: global recommendations on physical activity for health 18–64 years old. Available from: https://www.who.int/dietphysicalactivity/publications/recommendations18_64yearsold/en/. [cited 2021 Jun 4]
Thoma LM, Dunlop D, Song J, Lee J, Tudor-Locke C, Aguiar EJ, et al. Are older adults with symptomatic knee osteoarthritis less active than the general population? Analysis from the osteoarthritis initiative and the National Health and nutrition examination survey. Arthritis Care Res. 2018;70(10):1448–54.
Chang AH, Song J, Lee J, Chang RW, Semanik PA, Dunlop DD. Proportion and associated factors of meeting the 2018 physical activity guidelines for Americans in adults with or at risk for knee osteoarthritis. Osteoarthr Cartil. 2020;28(6):774–81.
Kim IJ, Kim HA, Seo YI, Jung YO, Song YW, Jeong JY, et al. Prevalence of knee pain and its influence on quality of life and physical function in the Korean elderly population: a community based cross-sectional study. J Korean Med Sci. 2011;26(9):1140–6.
Brickwood K-J, Watson G, O’Brien J, Williams AD. Consumer-based wearable activity trackers increase physical activity participation: systematic review and Meta-analysis. JMIR MHealth UHealth. 2019;7(4):e11819.
Laranjo L, Ding D, Heleno B, Kocaballi B, Quiroz JC, Tong HL, et al. Do smartphone applications and activity trackers increase physical activity in adults? Systematic review, meta-analysis and metaregression. Br J Sports Med. 2020;55(8):422–32.
Oliveira JS, Sherrington C, Zheng E, Franco MR, Tiedemann A. Effect of interventions using physical activity trackers on physical activity in people aged 60 years and over: a systematic review and meta-analysis. Br J Sports Med. 2020;54(20):1188–94.
Franssen WMA, Franssen GHLM, Spaas J, Solmi F, Eijnde BO. Can consumer wearable activity tracker-based interventions improve physical activity and cardiometabolic health in patients with chronic diseases? A systematic review and meta-analysis of randomised controlled trials. Int J Behav Nutr Phys Act. 2020;17(1):57.
Davergne T, Pallot A, Dechartres A, Fautrel B, Gossec L. Use of wearable activity trackers to improve physical activity behavior in patients with rheumatic and musculoskeletal diseases: A systematic review and Meta-analysis. Arthritis Care Res. 2019;71(6):758–67.
Willett M, Duda J, Fenton S, Gautrey C, Greig C, Rushton A. Effectiveness of behaviour change techniques in physiotherapy interventions to promote physical activity adherence in lower limb osteoarthritis patients: A systematic review. PLoS One. 2019;14(7):e0219482.
Active@Work - Optimizing Physical Activity at Work. - Full Text View - ClinicalTrials.gov. Available from: https://clinicaltrials.gov/ct2/show/NCT03354091. [cited 2021 Jun 4]
Östlind E, Sant’Anna A, Eek F, Stigmar K, Ekvall Hansson E. Physical activity patterns, adherence to using a wearable activity tracker during a 12-week period and correlation between self-reported function and physical activity in working age individuals with hip and/or knee osteoarthritis. BMC Musculoskelet Disord. 2021;22(1):450.
BankID. Available from: https://www.bankid.com/en/. [cited 2021 Jun 4]
Tudor-Locke C, Craig CL, Brown WJ, Clemes SA, De Cocker K, Giles-Corti B, et al. How many steps/day are enough? For adults. Int J Behav Nutr Phys Act. 2011;8:79.
Wallis JA, Webster KE, Levinger P, Taylor NF. What proportion of people with hip and knee osteoarthritis meet physical activity guidelines? A systematic review and meta-analysis. Osteoarthr Cartil. 2013;21(11):1648–59.
Ilmarinen J. The work ability index (WAI). Occup Med. 2007;57(2):160.
Tuomi K. Work ability index. Helsinki: Institut of Occupational Health; 1998.
Lundin A, Leijon O, Vaez M, Hallgren M, Torgen M. Predictive validity of the work ability index and its individual items in the general population. Scand J Public Health. 2017;45(4):350–6.
de Zwart BCH, Frings-Dresen MHW, van Duivenbooden JC. Test-retest reliability of the work ability index questionnaire. Occup Med Oxf Engl. 2002;52(4):177–81.
Craig CL, Marshall AL, Sjostrom M, Bauman AE, Booth ML, Ainsworth BE, et al. International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc. 2003;35(8):1381–95.
The IPAQ group. IPAQ scoring protocol. Available from: https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnx0aGVpcGFxfGd4OjE0NDgxMDk3NDU1YWRlZTM. [cited 2021 Jun 4]
Reilly MC, Zbrozek AS, Dukes EM. The validity and reproducibility of a work productivity and activity impairment instrument. PharmacoEconomics. 1993;4(5):353–65.
Reilly associates. WPAI General Information. Available from: http://www.reillyassociates.net/WPAI_General.html. [cited 2021 Jun 4]
Lastowiecka E, Bugajska J, Najmiec A, Rell-Bakalarska M, Bownik I, Jedryka-Goral A. Occupational work and quality of life in osteoarthritis patients. Rheumatol Int. 2006;27(2):131–9.
Norman GR, Sloan JA, Wyrwich KW. Interpretation of changes in health-related quality of life: the remarkable universality of half a standard deviation. Med Care. 2003;41(5):582–92.
IBM Corp. Released 2020. IBM SPSS Statistics for Windows, Version 27.0. Armonk: IBM Corp; 2020. Available from: https://www.ibm.com/products/spss-statistics [cited 2021 Jun 4]
Ritz C. Statistical analysis of continuous outcomes from parallel-arm randomized controlled trials in nutrition-a tutorial. Eur J Clin Nutr. 2021 Jan;75(1):160–71.
Van Breukelen GJ. ANCOVA versus change from baseline: more power in randomized studies, more bias in nonrandomized studies [corrected]. J Clin Epidemiol. 2006;59(9):920–5.
van den Berg TIJ, Elders LAM, de Zwart BCH, Burdorf A. The effects of work-related and individual factors on the work ability index: a systematic review. Occup Environ Med. 2008;66(4):211–20.
Bieleman HJ, Bierma-Zeinstra SM, Oosterveld FG, Reneman MF, Verhagen AP, Groothoff JW. The effect of osteoarthritis of the hip or knee on work participation. J Rheumatol. 2011;38(9):1835–43.
Whitaker C, Stevelink S, Fear N. The use of Facebook in recruiting participants for Health Research purposes: A systematic review. J Med Internet Res. 2017;19(8):e290.
Dell’Isola A, Jönsson T, Ranstam J, Dahlberg LE, Ekvall HE. Education, home exercise, and supervised exercise for people with hip and knee osteoarthritis as part of a Nationwide implementation program: data from the better Management of Patients with Osteoarthritis Registry. Arthritis Care Res. 2020;72(2):201–7.
Macridis S, Johnston N, Johnson S, Vallance JK. Consumer physical activity tracking device ownership and use among a population-based sample of adults. PLoS One. 2018;13(1):e0189298.
World Medical Association. World medical association declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013;310(20):2191–4. https://doi.org/10.1001/jama.2013.281053 PMID: 24141714.