[1] FRITZ S,LUSARDI M. White paper:"walkingspeed:the sixth vital sign"[J]. J Geriatr Phys Ther,2009,32(2):46-49.[2] PAHAPILL P A,LOZANO A M. Thepedunculopontine nucleus and Parkinson's disease[J].Brain,2000,123(9):1767-1783.[3] SHIK M L,ORLOVSKY G N. Neurophysiology oflocomotor automatism[J]. Physiol Rev,1976,56(3):465-501.[4] ARMSTRONG D M. The supraspinal control ofmammalian locomotion[J]. J Physiol,1988,405(1):1-37.[5] JAHN K,DEUTSCHLANDER A,STEPHAN T,etal. Supraspinal locomotor control in quadrupeds andhumans[J]. Prog Brain Res,2008,171(1):353-362.[6] VERLINDEN V J,VAN DER GEEST J N,HEERINGA J,et al. Gait shows a sex-specificpattern of associations with daily functioning in acommunity-dwelling population of older people[J].Gait Posture,2015,41(1):119-124.[7] LORD S,HOWE T,GREENLAND J,et al. Gaitvariability in older adults:a structured review oftesting protocol and clinimetric properties[J]. GaitPosture,2011,34(4):443-450.[8] CULLEN S,MONTERO-ODASSO M,BHERER L,et al. Guidelines for gait assessments in the CanadianConsortium on Neurodegeneration in Aging(CCNA)[J]. Can Geriatr J,2018,21(2):157-165.[9] MUIR S W,GOPAUL K,MONTERO ODASSOM M. The role of cognitive impairment in fall riskamong older adults:a systematic review and metaanalysis[J]. Age Ageing,2012,41(3):299-308.
[10] KUEPER J K,SPEECHLEY M,LINGUM NR,et al. Motor function and incident dementia:asystematic review and meta-analysis[J]. Age Ageing,2017,46(5):729-738.[11] MARUSIC U,VERGHESE J,MAHONEY J R.Cognitive-based interventions to improve mobility:a systematic review and meta-analysis[J]. J Am MedDir Assoc,2018,19(6):484-491.[12] BURACCHIO T,DODGE H H,HOWIESON D,et al. The trajectory of gait speed preceding mildcognitive impairment[J]. Arch Neurol,2010,67(8):980-986.[13] DOI T,SHIMADA H,MAKIZAKO H,et al.Motoric cognitive risk syndrome:association withincident dementia and disability[J]. J Alzheimers Dis,2017,59(1):77-84.[14] DUMURGIER J,ARTAUD F,TOURAINE C,et al.Gait speed and decline in gait speed as predictors ofincident dementia[J]. J Gerontol A Biol Sci Med Sci,2017,72(5):655-661.[15] GRAY S L,ANDERSON M L,HUBBARD R A,et al. Frailty and incident dementia[J]. J Gerontol ABiol Sci Med Sci,2013,68(9):1083-1090.[16] WANG L,LARSON E B,BOWEN J D,et al.Performance-based physical function and futuredementia in older people[J]. Arch Intern Med,2006,166(10):1115-1120.[17] CAMARGO E C,WEINSTEIN G,BEISER A S,etal. Association of physical function with clinical andsubclinical brain disease:the Framingham OffspringStudy[J]. J Alzheimers Dis,2016,53(4):1597-1608.[18] MONTERO-ODASSO M M,BARNES B,Speechley M,et al. Disentangling cognitive-frailty:results from the Gait and Brain Study[J]. J GerontolA Biol Sci Med Sci,2016,71(11),1476-1482.[19] VERGHESE J,WANG C,LIPTON R B,et al.Quantitative gait dysfunction and risk of cognitivedecline and dementia[J]. J Neurol NeurosurgPsychiatry,2007,78(9):929-935.[20] WELMER A K,RIZZUTO D,QIU C,et al.Walking speed,processing speed,and dementia:apopulation-based longitudinal study[J]. J Gerontol ABiol Sci Med Sci,2014,69(12):1503-1510.[21] AMBONI M,COZZOLINO A,LONGO K,et al.Freezing of gait and executive functions in patientswith Parkinson's disease[J]. Mov Disord,2008,23(3):395-400.[22] TESSITORE A,AMBONI M,ESPOSITO F,etal. Resting-state brain connectivity in patientswith Parkinson's disease and freezing of gait[J].Parkinsonism Relat Disord,2012,18(6):781-787.[23] LI J,YUAN Y,WANG M,et al. Decreasedinterhemispheric homotopic connectivity inParkinson's disease patients with freezing of gait:aresting state fMRI study[J]. Parkinsonism RelatDisord,2018,52(7):30-36.[24] LENKA A,NADUTHOTA R M,JHA M,et al.Freezing of gait in Parkinson's disease is associatedwith altered functional brain connectivity[J].Parkinsonism Relat Disord,2016,24(3):100-106.[25] The LADIS Study Group,POGGESI A,PANTONIL,INZITARI D,et al. 2001-2011:A decade of theLADIS(Leukoaraiosis And DISability)Study:whathave we learned about white matter changes andsmall-vessel disease?[J]. Cerebrovasc Dis,2011,32(6):577-588.[26] SU N,LIANG X,ZHAI F F,et al. The consequenceof cerebral small vessel disease:linking brainatrophy to motor impairment in the elderly[J]. HumBrain Mapp,2018,39(11):4452-4461.[27] STRINGHINI S,CARMELI C,JOKELA M,etal. Socioeconomic status,non-communicabledisease risk factors,and walking speed in olderadults:multi-cohort population based study[J/OL].BMJ,2018,360:k1046. https://doi.org/10.1136/bmj.k1046.[28] NADKARNI N K,BOUDREAU R M,STUDENSKI S A,et al. Slow gait,white mattercharacteristics,and prior 10-year interleukin-6levels in older adults[J]. Neurology,2016,87(19):1993-1999.[29] BEAUCHET O,SEKHON H,BARDEN J,et al.Association of motoric cognitive risk syndrome withcardiovascular disease and risk factors:results froman original study and meta-analysis[J]. J AlzheimersDis,2018,64(3):875-887.[30] WU T,HALLETT M,CHAN P. Motor automaticityin Parkinson's disease[J]. Neurobiol Dis,2015,82(10):226-234.[31] 陈慧敏,冯涛. 帕金森病步态异常的脑网络和神经环路研究进展[J]. 中华神经科杂志,2017,50(3):238-240.[32] STUDENSKI S,PERERA S,PATEL K,et al. Gaitspeed and survival in older adults[J]. JAMA,2011,305(1):50-58.