1) Anderson JG, Wixson RL, Tsai D, Stulberg SD, Chang RW (1996) Functional outcome and patient satisfaction in total knee patients over the age of 75. J Arthroplasty 11:831-840.
2) Bade MJ, Kohrt WM, Stevens-Lapsley JE (2010) Outcomes before and after total knee arthroplasty compared to healthy adults. J Orthop Sports Phys Ther 40:559-567.
3) Beswick AD, Wylde V, Gooberman-Hill R, Blom A, Dieppe P (2012) What proportion of patients report long-term pain after total hip or knee replacement for osteoarthritis? A systematic review of prospective studies in unselected patients. BMJ Open 2:e000435.
4) Bourne RB, Chesworth BM, Davis AM, Mahomed NN, Charron KD (2010) Patient satisfaction after total knee arthroplasty: who is satisfied and who is not? Clin Orthop Relat Res 468:57-63.
5) Chmelo E, Nicklas B, Davis C, Miller GD, Legault C, Messier S (2013) Physical activity and physical function in older adults with knee osteoarthritis. J Phys Act Health 10:777-783.
6) Frimpong E, McVeigh JA, Meiring RM (2018) Sedentary behavior in patients with knee osteoarthritis before and after total knee arthroplasty: A systematic review. J Aging Phys Act 26:671-681.
7) Genêt F, Schnitzler A, Lapeyre E et al (2008) Change of impairment, disability and patient satisfaction after total knee arthroplasty in secondary care practice. Ann Readapt Med Phys 51:671-66, 676-682.
8) Gretebeck KA, Sabatini LM, Black DR, Gretebeck RJ (2017) physical activity, functional ability, and obesity in older adults: a gender difference. J Gerontol Nurs 43:38-46.
9) Hagstromer M, Ainsworth BE, Oja P, Sjostrom M (2010) Comparison of a subjective and an objective measure of physical activity in a population sample. J Phys Act Health 7: 541-50.
10) Hamamoto Y, Ito H, Furu M et al (2015) Cross-cultural adaptation and validation of the Japanese version of the new Knee Society Scoring System for osteoarthritic knee with total knee arthroplasty. J Orthop Sci 20:849-853.
11) Hammett T, Simonian A, Austin M et al (2018) Changes in physical activity after total hip or knee arthroplasty: A systematic review and meta-analysis of six- and twelve-month outcomes. Arthritis Care Res (Hoboken) 70:892-901.
12) Katoh M, Yamasaki H (2009) Comparison of reliability of isometric leg muscle strength measurements made using a hand-held dynamometer with and without a restraining belt. J Phys Ther Sci 21:37-42.
13) Kellgren JH, Lawrence JS (1957) Radiological assessment of osteo-arthrosis. Ann Rheum Dis 16:494-502.
14) Kennedy DM, Stratford PW, Riddle DL, Hanna SE, Gollish JD (2008) Assessing recovery and establishing prognosis following total knee arthroplasty. Phys Ther 88:22-32.
15) Kojima T, Ishikawa H, Tanaka S et al (2018) Target setting for lower limb joint surgery using the Timed Up and Go test in patients with rheumatoid arthritis: A prospective cohort study. Int J Rheum Dis 21:1801-1808.
16) Kurtz S, Ong K, Lau E, Mowat F, Halpern M (2007) Projections of primary and revision hip and knee arthroplasty in the United States from 2005 to 2030. J Bone Joint Surg Am 89:780-785.
17) Kurita S, Yano S, Ishii K et al (2017) Comparability of activity monitors used in Asian and Western-country studies for assessing free-living sedentary behaviour. PLoS One. 12:e0186523.
18) Lewis GN, Rice DA, McNair PJ, Kluger M (2015) Predictors of persistent pain after total knee arthroplasty: a systematic review and meta-analysis. Br J Anaesth 114:551-61.
19) Mizner RL, Petterson SC, Snyder-Mackler L ( 2005) Quadriceps strength and the time course of functional recovery after total knee arthroplasty. J Orthop Sports Phys Ther 35:424-436.
20) Noble PC, Scuderi GR, Brekke AC, et al (2012) Development of a new Knee Society scoring system. Clin Orthop Relat Res 470:20-32.
21) Ohkawara K, Oshima Y, Hikihara Y et al (2011) Real-time estimation of daily physical activity intensity by a triaxial accelerometer and a gravity-removal classification algorithm. Br J Nutr 105:1681-1691.
22) Oshima Y, Kawaguchi K, Tanaka S et al (2010) Classifying household and locomotive activities using a triaxial accelerometer. Gait Posture 31:370-374.
23) Pate RR, O'Neill JR, Lobelo F (2008) The evolving definition of “sedentary.” Exerc Sport Sci Rev 36:173-178.
24) Podsiadlo D, Richardson S (1991) The timed "Up & Go”: a test of basic functional mobility for frail elderly persons. J Am Geriatr Soc 39:142-148.
25) Poortinga S, van den Akker-Scheek I, Bulstra SK, Stewart RE, Stevens M (2014) Preoperative physical activity level has no relationship to the degree of recovery one year after primary total hip or knee arthroplasty: a cohort study. PLoS One 9:e115559.
26) Rosenberg DE, Bellettiere J, Gardiner PA, Villarreal VN, Crist K, Kerr J (2016) Independent associations between sedentary behaviors and mental, cognitive, physical, and functional health among older adults in retirement communities. J Gerontol A Biol Sci Med Sci 71:78-83.
27) Santaguida PL, Hawker GA, Hudak PL et al (2008) Patient characteristics affecting the prognosis of total hip and knee joint arthroplasty: a systematic review. Can J Surg 51:428-436.
28) Scuderi GR, Bourne RB, Noble PC, Benjamin JB, Lonner JH, Scott WN (2012) The new Knee Society Knee Scoring System. Clin Orthop Relat Res 470:3-19.
29) Song J, Lindquist LA, Chang RW (2015) Sedentary behavior as a risk factor for physical frailty independent of moderate activity: Results from the osteoarthritis initiative. Am J Public Health 105:1439-1445.
30) Taniguchi M, Sawano S, Kugo M, Maegawa S, Kawasaki T, Ichihashi N (2016) Physical activity promotes gait improvement in patients with total knee arthroplasty. J Arthroplasty 31:984-988.
31) Thiam WD, Teh JW, Bin Abd Razak HR, Tan HC (2016) Correlations between functional knee outcomes and health- related quality of life after total knee arthroplasty in an Asian Population. J Arthroplasty 31:989-993.
32) White DK, Lee J, Song J, Chang RW, Dunlop D (2017) Potential functional benefit from light intensity physical activity in knee osteoarthritis. Am J Prev Med 53:689-696.
33) Wylde V, Beswick A, Bruce J, Blom A, Howells N, Gooberman-Hill R (2018) Chronic pain after total knee arthroplasty. EFORT Open Rev 3:461-470.
34) Yasunaga A, Shibata A, Ishii K et al (2017) Associations of sedentary behavior and physical activity with older adults’ physical function: an isotemporal substitution approach. BMC Geriatr 17:280.14.