1.Hoehn, MM, Yahr, MD.Parkinsonism: onset, progression and mortality. Neurology. 1967 May;17(5):427–42.
2.Boonstra, TA, van der Kooij, H, Munneke, M, Bloem, BR.Gait disorders and balance disturbances in Parkinson’s disease: clinical update and pathophysiology. Curr Opin Neurol. 2008 Aug;21(4):461–71.
3.Grimbergen, YA, Munneke, M, Bloem, BR.Falls in Parkinson’s disease. Curr Opin Neurol. 2004 Aug;17(4):405–15.
4.Bloem, BR.Postural instability in Parkinson’s disease. Clin Neurol Neurosurg. 1992;94 Suppl: S41–5.
5.Benatru, I, Vaugoyeau, M, Azulay, JP.Postural disorders in Parkinson’s disease. Neurophysiol Clin. 2008 Dec;38(6):459–65.
6.Bloem, BR, Grimbergen, YA, Cramer, M, Willemsen, M, Zwinderman, AH.Prospective assessment of falls in Parkinson’s disease. J Neurol. 2001 Nov;248(11):950–8.
7.Munhoz, RP, Li, JY, Kurtinecz, M, et al.Evaluation of the pull test technique in assessing postural instability in Parkinson’s disease. Neurology. 2004 Jan 13;62(1):125–7.
8.Visser, M, Marinus, J, Bloem, BR, Kisjes, H, van den Berg, BM, van Hilten, JJ.Clinical tests for the evaluation of postural instability in patients with parkinson’s disease. Arch Phys Med Rehabil. 2003 Nov;84(11):1669–74.
9.Furman, JM.Posturography: uses and limitations. Baillieres Clin Neurol. 1994 Nov;3(3):501–13.
10.Artuso, A, Garozzo, A, Contucci, AM, Frenguelli, A, Di Girolamo, S.Role of dynamic posturography (Equitest) in the identification of feigned balance disturbances. Acta Otorhinolaryngol Ital. 2004 Feb;24(1):8–12.
11.Waterston, JA, Hawken, MB, Tanyeri, S, Jantti, P, Kennard, C.Influence of sensory manipulation on postural control in Parkinson’s disease. J Neurol Neurosurg Psychiatry. 1993 Dec;56(12):1276–81.
12.Frenklach, A, Louie, S, Koop, MM, Bronte-Stewart, H.Excessive postural sway and the risk of falls at different stages of Parkinson’s disease. Mov Disord. 2009 Feb 15;24(3):377–85.
13.Valkovic, P, Krafczyk, S, Botzel, K.Postural reactions to soleus muscle vibration in Parkinson’s disease: scaling deteriorates as disease progresses. Neurosci Lett. 2006 Jun 19;401(1-2):92–6.
14.Valkovic, P, Abrahamova, D, Hlavacka, F, Benetin, J.Static posturography and infraclinical postural instability in early-stage Parkinson’s disease. Mov Disord. 2009 Aug 15;24(11):1713–4; author reply 4.
15.Chastan, N, Debono, B, Maltete, D, Weber, J.Discordance between measured postural instability and absence of clinical symptoms in Parkinson’s disease patients in the early stages of the disease. Mov Disord. 2008 Feb 15;23(3):366–72.
16.Fioretti, S, Guidi, M, Ladislao, L, Ghetti, G.Analysis and reliability of posturographic parameters in Parkinson patients at an early stage. Conf Proc IEEE Eng Med Biol Soc. 2004;1:651–4.
17.Lang, AE, Obeso, JA.Challenges in Parkinson’s disease: restoration of the nigrostriatal dopamine system is not enough. Lancet Neurol. 2004 May;3(5):309–16.
18.Rocchi, L, Chiari, L, Horak, FB.Effects of deep brain stimulation and levodopa on postural sway in Parkinson’s disease. J Neurol Neurosurg Psychiatry. 2002 Sep;73(3):267–74.
19.Bronte-Stewart, HM, Minn, AY, Rodrigues, K, Buckley, EL, Nashner, LM.Postural instability in idiopathic Parkinson’s disease: the role of medication and unilateral pallidotomy. Brain. 2002 Sep;125(Pt9):2100–14.
20.Jankovic, J, McDermott, M, Carter, J, et al.Variable expression of Parkinson’s disease: a base-line analysis of the DATATOP cohort. The Parkinson Study Group. Neurology. 1990 Oct;4 0(10):1529–34.
21.Alves, G, Larsen, JP, Emre, M, Wentzel-Larsen, T, Aarsland, D.Changes in motor subtype and risk for incident dementia in Parkinson’s disease. Mov Disord. 2006 Aug;21(8):1123–30.
22.Burn, DJ, Rowan, EN, Allan, LM, Molloy, S, O’Brien, JT, McKeith, IG.Motor subtype and cognitive decline in Parkinson’s disease, Parkinson’s disease with dementia, and dementia with Lewy bodies. J Neurol Neurosurg Psychiatry. 2006 May;77(5):585–9.
23.Gago, MF, Garrett, MC, Fonseca, MR, et al.How do cognitive and axial motor signs correlate in Parkinson’s disease? A 6-year prospective study. J Neurol. 2009 Oct;256(10):1655–62.
24.Levy, G, Tang, MX, Cote, LJ, et al.Motor impairment in PD: relationship to incident dementia and age. Neurology. 2000 Aug 22;55(4):539–44.
25.Lyros, E, Messinis, L, Papathanasopoulos, P.Does motor subtype influence neurocognitive performance in Parkinson’s disease without dementia? Eur J Neurol. 2008 Mar;15(3):262–7.
26.Oh, JY, Kim, YS, Choi, BH, Sohn, EH, Lee, AY.Relationship between clinical phenotypes and cognitive impairment in Parkinson’s disease (PD). Arch Gerontol Geriatr. 2009 Nov-Dec;4 9(3):351–4.
27.Williams, LN, Seignourel, P, Crucian, GP, et al.Laterality, region, and type of motor dysfunction correlate with cognitive impairment in Parkinson’s disease. Mov Disord. 2007 Jan;22(1):141–5.
28.Nashner, LM.Practical management of the dizzy patient. In: Goebel, JA, editor. Computerized dynamic posturography. Philadelphia; 2001. p. 143–70.
29.Nashner, LM, Shupert, CL, Horak, FB, Black, FO.Organization of posture controls: an analysis of sensory and mechanical constraints. Prog Brain Res. 1989;80:411–8; discussion 395-7.
30.Hamid, MA, Hughes, GB, Kinney, SE.Specificity and sensitivity of dynamic posturography. A retrospective analysis. Acta Otolaryngol Suppl. 1991;481:596–600.
31.Horak, FB, Nashner, LM.Central programming of postural movements: adaptation to altered support-surface configurations. J Neurophysiol. 1986 Jun;55(6):1369–81.
32.Ahn, HJ, Chin, J, Park, A, et al.Seoul Neuropsychological Screening Battery-dementia version (SNSB-D): a useful tool for assessing and monitoring cognitive impairments in dementia patients. J Korean Med Sci. Jul;25(7):1071–6.
33.Ondo, W, Warrior, D, Overby, A, et al.Computerized posturography analysis of progressive supranuclear palsy: a case-control comparison with Parkinson’s disease and healthy controls. Arch Neurol. 2000 Oct;57(10):1464–9.
34.Rossi, M, Soto, A, Santos, S, Sesar, A, Labella, T.A prospective study of alterations in balance among patients with Parkinson’s Disease. Protocol of the postural evaluation. Eur Neurol. 2009;61(3):171–6.
35.Azulay, JP, Mesure, S, Amblard, B, Blin, O, Sangla, I, Pouget, J.Visual control of locomotion in Parkinson’s disease. Brain. 1999 Jan;122(Pt 1):111–20.
36.Isableu, B, Ohlmann, T, Cremieux, J, Amblard, B.Selection of spatial frame of reference and postural control variability. Exp Brain Res. 1997 May;114(3):584–9.
37.Pastor, MA, Day, BL, Marsden, CD.Vestibular induced postural responses in Parkinson’s disease. Brain. 1993 Oct;116(Pt 5):1177–90.