1. Weiner DK, Kim YS, Bonino P, et al. Low back pain in older adults: are we utilizing healthcare resources wisely? Pain Med 2006;7:143-50.
2. Deyo RA, Weinstein JN. Low back pain. N Engl J Med 2001;344:363-70.
6. Hicks GE, Simonsick EM, Harris TB, et al. Cross-sectional associations between trunk muscle composition, back pain, and physical function in the health, aging and body composition study. J Gerontol A Biol Sci Med Sci 2005;60:882-7.
10. Ikeda DM, McGill SM. Can altering motions, postures, and loads provide immediate low back pain relief: a study of 4 cases investigating spine load, posture, and stability. Spine (Phila Pa 1976) 2012;37:E1469-75.
12. Seo HS, Lee H, Kim S, et al. Paravertebral muscles as indexes of sarcopenia and sarcopenic obesity: comparison with imaging and muscle function indexes and impact on cardiovascular and metabolic disorders. Am J Roentgenol 2021;216:1596-606.
14. Kankaanpää M, Taimela S, Laaksonen D, et al. Back and hip extensor fatigability in chronic low back pain patients and controls. Arch Phys Med Rehabil 1998;79:412-7.
15. Leinonen V, Kankaanpää M, Airaksinen O, et al. Back and hip extensor activities during trunk flexion/extension: effects of low back pain and rehabilitation. Arch Phys Med Rehabil 2000;81:32-7.
16. Itoi E. Roentgenographic analysis of posture in spinal osteoporotics. Spine (Phila Pa 1976) 1991;16:750-6.
17. Jackson RP, McManus AC. Radiographic analysis of sagittal plane alignment and balance in standing volunteers and patients with low back pain matched for age, sex, and size. A prospective controlled clinical study. Spine (Phila Pa 1976) 1994;19:1611-8.
18. Korovessis P, Stamatakis M, Baikousis A. Segmental roentgenographic analysis of vertebral inclination on sagittal plane in asymptomatic versus chronic low back pain patients. J Spinal Disord 1999;12:131-7.
23. Vlaeyen JW, Linton SJ. Fear-avoidance and its consequences in chronic musculoskeletal pain: a state of the art. Pain 2000;85:317-32.
25. Chen LK, Woo J, Assantachai P, et al. Asian Working Group for Sarcopenia: 2019 consensus update on sarcopenia diagnosis and treatment. J Am Med Dir Assoc 2020;21:300-7.e2.
26. Meng NH, Li CI, Liu CS, et al. Comparison of height- and weight-adjusted sarcopenia in a Taiwanese metropolitan older population. Geriatr Gerontol Int 2015;15:45-53.
27. Kim YS, Lee Y, Chung YS, et al. Prevalence of sarcopenia and sarcopenic obesity in the Korean population based on the Fourth Korean National Health and Nutritional Examination Surveys. J Gerontol A Biol Sci Med Sci 2012;67:1107-13.
28. Barbosa-Silva TG, Bielemann RM, Gonzalez MC, et al. Prevalence of sarcopenia among community-dwelling elderly of a medium-sized South American city: results of the COMO VAI? study. J Cachexia Sarcopenia Muscle 2016;7:136-43.
30. Christie HJ, Kumar S, Warren SA. Postural aberrations in low back pain. Arch Phys Med Rehabil 1995;76:218-24.
31. Hansson T, Bigos S, Beecher P, et al. The lumbar lordosis in acute and chronic low-back pain. Spine (Phila Pa 1976) 1985;10:154-5.
32. Tsuji T, Matsuyama Y, Sato K, et al. Epidemiology of low back pain in the elderly: correlation with lumbar lordosis. J Orthop Sci 2001;6:307-11.
33. Murrie VL, Dixon AK, Hollingworth W, et al. Lumbar lordosis: study of patients with and without low back pain. Clin Anat 2003;16:144-7.
34. Pope MH, Bevins T, Wilder DG, et al. The relationship between anthropometric, postural, muscular, and mobility characteristics of males ages 18-55. Spine (Phila Pa 1976) 1985;10:644-8.
35. Konno S, Kikuchi S, Nagaosa Y. The relationship between intramuscular pressure of the paraspinal muscles and low back pain. Spine (Phila Pa 1976) 1994;19:2186-9.
37. Kjaer P, Leboeuf-Yde C, Korsholm L, et al. Magnetic resonance imaging and low back pain in adults: a diagnostic imaging study of 40-year-old men and women. Spine (Phila Pa 1976) 2005;30:1173-80.
40. Malavolti M, Mussi C, Poli M, et al. Cross-calibration of eightpolar bioelectrical impedance analysis versus dual-energy X-ray absorptiometry for the assessment of total and appendicular body composition in healthy subjects aged 21-82 years. Ann Hum Biol 2003;30:380-91.