1. Hoy D, Brooks P, Blyth F, Buchbinder R. The epidemiology of low back pain. Best Pract Res Clin Rheumatol. 2010;24(6):769-81. [
DOI:10.1016/j.berh.2010.10.002]
2. Robert Gailey PhD P. Review of secondary physical conditions associated with lower-limb amputation and long-term prosthesis use. J Rehabil Res Dev. 2008;45(1):15-29. [
DOI:10.1682/JRRD.2006.11.0147]
3. Smith DG, Ehde DM, Legro MW, Reiber GE, del Aguila M, Boone DA. Phantom limb, residual limb, and back pain after lower extremity amputations.Clin Orthop Relat Res. 1999;361:29-38. [
DOI:10.1097/00003086-199904000-00005]
4. Ephraim PL, Wegener ST, MacKenzie EJ, Dillingham TR, Pezzin LE. Phantom pain, residual limb pain, and back pain in amputees: Results of a national survey. Arch Phys Med Rehabi. 2005;86(10):1910-9. [
DOI:10.1016/j.apmr.2005.03.031]
5. Ehde DM, Smith DG, Czerniecki JM, Campbell KM, Malchow DM, Robinson LR. Back pain as a secondary disability in persons with lower limb amputations. Arch Phys Med Rehabi. 2001;82(6):731-4. [
DOI:10.1053/apmr.2001.21962]
6. Jensen MP, Smith DG, Ehde DM, Robinsin LR. Pain site and the effects of amputation pain: further clarification of the meaning of mild, moderate, and severe pain. Pain. 2001;91(3):317-22. [
DOI:10.1016/S0304-3959(00)00459-0]
7. da Costa BR, Vieira ER. Risk factors for work‐related musculoskeletal disorders: a systematic review of recent longitudinal studies. Am J Ind Med. 2010;53(3):285-323.
8. Devan H, Carman AB, Hendrick PA, Ribeiro DC, Hale LA. Perceptions of low back pain in people with lower limb amputation: A focus group study. Disabil Rehabil. 2015;37(10):873-83. [
DOI:10.3109/09638288.2014.946158]
9. Koes B, Van Tulder M, Thomas S. Diagnosis and treatment of low back pain. BMJ. 2006;332(7555):1430-4. [
DOI:10.1136/bmj.332.7555.1430]
10. Hoogendoorn WE, van Poppel MN, Bongers PM, Koes BW, Bouter LM. Systematic review of psychosocial factors at work and private life as risk factors for back pain. Spine. 2000;25(16):2114-25. [
DOI:10.1097/00007632-200008150-00017]
11. Pincus T, Burton AK, Vogel S, Field AP. A systematic review of psychological factors as predictors of chronicity/disability in prospective cohorts of low back pain. Spine. 2002;27(5): 109-20. [
DOI:10.1097/00007632-200203010-00017]
12. Silverman AK, Fey NP, Portillo A, Walden JG, Bosker G, Neptune RR. Compensatory mechanisms in below-knee amputee gait in response to increasing steady-state walking speeds. Gait Posture. 2008;28(4):602-9. [
DOI:10.1016/j.gaitpost.2008.04.005]
13. Silverman AK, Neptune RR. Three-dimensional knee joint contact forces during walking in unilateral transtibial amputees. J Biomech . 2014;47(11):2556-62. [
DOI:10.1016/j.jbiomech.2014.06.006]
14. Fey NP, Silverman A, Neptune R. The influence of increasing steady-state walking speed on muscle activity in below-knee amputees. J Electromyogr Kinesiol. 2010;20(1):155-61. [
DOI:10.1016/j.jelekin.2009.02.004]
15. Kulkarni J, Gaine W, Buckley J, Rankine J, Adams J. Chronic low back pain in traumatic lower limb amputees. Clin Rehabil. . 2005;19(1):81-6. [
DOI:10.1191/0269215505cr819oa]
16. Serlin RC, Mendoza TR, Nakamura Y, Edwards KR, Cleeland CS. When is cancer pain mild, moderate or severe? Grading pain severity by its interference with function. Pain. 1995;61(2):277-84. [
DOI:10.1016/0304-3959(94)00178-H]
17. Fairbank J, Couper J, Davies J, O\'brien J. The Oswestry low back pain disability questionnaire. Physiotherapy 1980;66(8):271-3.
18. Price DD, McGrath PA, Rafii A, Buckingham B. The validation of visual analogue scales as ratio scale measures for chronic and experimental pain. Pain. 1983;17(1):45-56. [
DOI:10.1016/0304-3959(83)90126-4]
19. Mousavi SJ, Parnianpour M, Mehdian H, Montazeri A, Mobini B. The Oswestry disability index, the Roland-Morris disability questionnaire, and the Quebec back pain disability scale: Translation and validation studies of the Iranian versions. Spine. 2006;31(14): 454-9. [
DOI:10.1097/01.brs.0000222141.61424.f7]
20. De Luca CJ. Use of the surface EMG signal for performance evaluation of back muscles. Muscle Nerve. 1993;16(2):210-6. [
DOI:10.1002/mus.880160216]
21. Kramer M, Ebert V, Kinzl L, Dehner C, Elbel M, Hartwig E. Surface electromyography of the paravertebral muscles in patients with chronic low back pain. Arch Phys Med Rehabil. 2005;86(1):31-6. [
DOI:10.1016/j.apmr.2004.01.016]
22. Hu Y, Siu SH, Mak JN, Luk KD. Lumbar muscle electromyographic dynamic topography during flexion-extension. J Electromyogr Kinesiol. 2010;20(2):246-55. [
DOI:10.1016/j.jelekin.2009.05.002]
23. Moffroid MT. Endurance of trunk muscles in persons with chronic low back pain: assessment, performance, training. J Rehabil Res Dev. 1997;34(4):440-7.
24. Drake JD, Fischer SL, Brown SH, Callaghan JP. Do exercise balls provide a training advantage for trunk extensor exercises? A biomechanical evaluation. J Manipulative Physiol Ther. 2006;29(5):354-62. [
DOI:10.1016/j.jmpt.2006.04.011]
25. McGill SM. Electromyographic activity of the abdominal and low back musculature during the generation of isometric and dynamic axial trunk torque: Implications for lumbar mechanics. J Orthop Res. 1991;9(1):91-103. [
DOI:10.1002/jor.1100090112]
26. Claus AP, Hides JA, Moseley GL, Hodges PW. Different ways to balance the spine: subtle changes in sagittal spinal curves affect regional muscle activity. Spine. 2009;34(6):E208-14. [
DOI:10.1097/BRS.0b013e3181908ead]
27. Tsao H, Druitt TR, Schollum TM, Hodges PW. Motor training of the lumbar paraspinal muscles induces immediate changes in motor coordination in patients with recurrent low back pain. Pain. 2010;11(11):1120-8. [
DOI:10.1016/j.jpain.2010.02.004]
28. Kim Y, Son J, Yoon B. Intensive unilateral neuromuscular training on non-dominant side of low back improves balanced muscle response and spinal stability. Eur J Appl Physiol . 2013;113(4):997-1004. [
DOI:10.1007/s00421-012-2513-7]
29. Michaud SB, Gard SA, Childress DS. A preliminary investigation of pelvic obliquity patterns during gait in persons with transtibial and transfemoral amputation. J Rehabil Res Dev. 2000;37(1):1-10.
30. Prinsen EC, Nederhand MJ, Rietman JS. Adaptation strategies of the lower extremities of patients with a transtibial or transfemoral amputation during level walking: a systematic review. Arch Phys Med Rehabil. 2011;92(8):1311-25. [
DOI:10.1016/j.apmr.2011.01.017]
31. Solomonow M, Zhou B-H, Harris M, Lu Y, Baratta RV. The ligamento‐muscular stabilizing system of the spine. Spine. 1998;23(23):2552-62. [
DOI:10.1097/00007632-199812010-00010]
32. Mueller MJ, Maluf KS. Tissue adaptation to physical stress: A proposed \"Physical stress theory\" to guide physical therapist practice, education, and research. Physical therapy. 2002;82(4):383.
33. Panjabi MM. The stabilizing system of the spine. part II. neutral zone and instability hypothesis. J Spinal Disord. 1992;5(4):390-7. [
DOI:10.1097/00002517-199212000-00002]
34. Flor H, Nikolajsen L, Jensen TS. Phantom limb pain: A case of maladaptive CNS plasticity?. Nat Rev Neurosci. 2006;7(11):873-81. [
DOI:10.1038/nrn1991]
35. Greive AC, Lankhorst GJ. Functional outcome of lower-limb amputees: a prospective descriptive study in a general hospital. Prosthet Orthot Int. 1996;20(2):79-87.
36. Goujon-Pillet H, Sapin E, Fodé P, Lavaste F. Three-dimensional motions of trunk and pelvis during transfemoral amputee gait. Arch Phys Med Rehabil. 2008;89(1):87-94. [
DOI:10.1016/j.apmr.2007.08.136]
37. Bell JC, Wolf EJ, Schnall BL, Tis JE, Tis LL, Potter MBK. Transfemoral amputations: the effect of residual limb length and orientation on gait analysis outcome measures. J Bone Joint Surg Am. 2013;95(5):408-14. [
DOI:10.2106/JBJS.K.01446]
38. Hafner BJ, Sanders JE, Czerniecki J, Fergason J. Energy storage and return prostheses: does patient perception correlate with biomechanical analysis?. Clin Biomech. 2002;17(5):325-44. [
DOI:10.1016/S0268-0033(02)00020-7]
39. Macfarlane PA, Nielsen DH, Shurr DG, Meier K. Gait comparisons for below-knee amputees using a flex-foot versus a conventional prosthetic foot. J Prosthet Orthot. 1991;3(4):150-61. [
DOI:10.1097/00008526-199100340-00008]
40. Friberg O. Biomechanical significance of the correct length of lower limb prostheses: a clinical and radiological study. Prosthet Orthot Int. 1984;8(3):124-9.
41. Morgenroth DC, Shakir A, Orendurff MS, Czerniecki JM. Low-back pain in transfemoral amputees: is there a correlation with static or dynamic leg-length discrepancy?. Am J Phys Med Rehabil. 2009;88(2):108-13. [
DOI:10.1097/PHM.0b013e318194fbbc]
42. Lee RY, Turner-Smith A. The influence of the length of lower-limb prosthesis on spinal kinematics. Arch Phys Med Rehabil. 2003;84(9):1357-62. [
DOI:10.1016/S0003-9993(03)00259-4]
43. Jensen MP, Moore MR, Bockow TB, Ehde DM, Engel JM. Psychosocial factors and adjustment to chronic pain in persons with physical disabilities: A systematic review. Arch Phys Med Rehabil. 2011;92(1):146-60. [
DOI:10.1016/j.apmr.2010.09.021]