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DOI: 10.1055/s-0041-1725133
Evidence for Early and Regular Physical Therapy and Exercise in Parkinson's Disease
Abstract
Advances in medical management of Parkinson's disease (PD) have resulted in living longer with disability. Although disability worsens over the course of the disease, there are signs of disability even in the early stages. Several studies reveal an early decline in gait and balance and a high prevalence of nonmotor signs in the prodromal period that contribute to early disability. There is a growing body of evidence revealing the benefits of physical therapy and exercise to mitigate motor and nonmotor signs while improving physical function and reducing disability. The presence of early disability coupled with the benefits of exercise suggests that physical therapy should be initiated earlier in the disease. In this review, we present the evidence revealing early disability in PD and the effectiveness of physical therapy and exercise, followed by a discussion of a secondary prevention model of rehabilitation to reduce early disability and optimize long-term outcomes.
Publication History
Article published online:
19 March 2021
© 2021. Thieme. All rights reserved.
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References
- 1 Parkinson J. An essay on the shaking palsy. 1817. J Neuropsychiatry Clin Neurosci 2002; 14 (02) 223-236 , discussion 222
- 2 De Pablo-Fernandez E, Tur C, Revesz T, Lees AJ, Holton JL, Warner TT. Association of autonomic dysfunction with disease progression and survival in Parkinson disease. JAMA Neurol 2017; 74 (08) 970-976
- 3 Golbe LI, Leyton CE. Life expectancy in Parkinson disease. Neurology 2018; 91 (22) 991-992
- 4 Marras C, Chaudhuri KR. Nonmotor features of Parkinson's disease subtypes. Mov Disord 2016; 31 (08) 1095-1102
- 5 Goldman JG, Postuma R. Premotor and nonmotor features of Parkinson's disease. Curr Opin Neurol 2014; 27 (04) 434-441
- 6 Kowal SL, Dall TM, Chakrabarti R, Storm MV, Jain A. The current and projected economic burden of Parkinson's disease in the United States. Mov Disord 2013; 28 (03) 311-318
- 7 Willis AW, Evanoff BA, Lian M. et al. Metal emissions and urban incident Parkinson disease: a community health study of Medicare beneficiaries by using geographic information systems. Am J Epidemiol 2010; 172 (12) 1357-1363
- 8 Pagano G, Ferrara N, Brooks DJ, Pavese N. Age at onset and Parkinson disease phenotype. Neurology 2016; 86 (15) 1400-1407
- 9 Rodriguez-Oroz MC, Jahanshahi M, Krack P. et al. Initial clinical manifestations of Parkinson's disease: features and pathophysiological mechanisms. Lancet Neurol 2009; 8 (12) 1128-1139
- 10 Braak H, Ghebremedhin E, Rüb U, Bratzke H, Del Tredici K. Stages in the development of Parkinson's disease-related pathology. Cell Tissue Res 2004; 318 (01) 121-134
- 11 Kalia LV, Lang AE. Parkinson's disease. Lancet 2015; 386 (9996): 896-912
- 12 Olanow CWM, Stern MB, Sethi K. The scientific and clinical basis for the treatment of Parkinson disease. Neurology 2009; 72 (21) (Suppl. 04) S1-136
- 13 Titova N, Chaudhuri KR. Nonmotor Parkinson's and future directions. Int Rev Neurobiol 2017; 134: 1493-1505
- 14 Hoehn MM, Yahr MD. Parkinsonism: onset, progression and mortality. Neurology 1967; 17 (05) 427-442
- 15 Goetz CG, Tilley BC, Shaftman SR. et al; Movement Disorder Society UPDRS Revision Task Force. Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS): scale presentation and clinimetric testing results. Mov Disord 2008; 23 (15) 2129-2170
- 16 Shulman LM, Gruber-Baldini AL, Anderson KE. et al. The evolution of disability in Parkinson disease. Mov Disord 2008; 23 (06) 790-796
- 17 Shulman LM. Understanding disability in Parkinson's disease. Mov Disord 2010; 25 (Suppl. 01) S131-S135
- 18 Nisenzon AN, Robinson ME, Bowers D, Banou E, Malaty I, Okun MS. Measurement of patient-centered outcomes in Parkinson's disease: what do patients really want from their treatment?. Parkinsonism Relat Disord 2011; 17 (02) 89-94
- 19 Christiansen C, Moore C, Schenkman M. et al. Factors associated with ambulatory activity in de novo Parkinson disease. J Neurol Phys Ther 2017; 41 (02) 93-100
- 20 Lord S, Godfrey A, Galna B, Mhiripiri D, Burn D, Rochester L. Ambulatory activity in incident Parkinson's: more than meets the eye?. J Neurol 2013; 260 (12) 2964-2972
- 21 van Nimwegen M, Speelman AD, Hofman-van Rossum EJ. et al. Physical inactivity in Parkinson's disease. J Neurol 2011; 258 (12) 2214-2221
- 22 Cavanaugh JT, Ellis TD, Earhart GM, Ford MP, Foreman KB, Dibble LE. Capturing ambulatory activity decline in Parkinson's disease. J Neurol Phys Ther 2012; 36 (02) 51-57
- 23 Cavanaugh JT, Ellis TD, Earhart GM, Ford MP, Foreman KB, Dibble LE. Toward Understanding Ambulatory Activity Decline in Parkinson Disease. Phys Ther 2015; 95 (08) 1142-1150
- 24 Smulders K, Dale ML, Carlson-Kuhta P, Nutt JG, Horak FB. Pharmacological treatment in Parkinson's disease: effects on gait. Parkinsonism Relat Disord 2016; 31: 3-13
- 25 Studenski S, Perera S, Wallace D. et al. Physical performance measures in the clinical setting. J Am Geriatr Soc 2003; 51 (03) 314-322
- 26 Hass CJ, Bishop M, Moscovich M. et al. Defining the clinically meaningful difference in gait speed in persons with Parkinson disease. J Neurol Phys Ther 2014; 38 (04) 233-238
- 27 Ellis TD, Cavanaugh JT, Earhart GM. et al. Identifying clinical measures that most accurately reflect the progression of disability in Parkinson disease. Parkinsonism Relat Disord 2016; 25: 65-71
- 28 Elbers RG, van Wegen EE, Verhoef J, Kwakkel G. Is gait speed a valid measure to predict community ambulation in patients with Parkinson's disease?. J Rehabil Med 2013; 45 (04) 370-375
- 29 Mancini M, Fling BW, Gendreau A. et al. Effect of augmenting cholinergic function on gait and balance. BMC Neurol 2015; 15: 264
- 30 Hausdorff JM, Doniger GM, Springer S, Yogev G, Simon ES, Giladi N. A common cognitive profile in elderly fallers and in patients with Parkinson's disease: the prominence of impaired executive function and attention. Exp Aging Res 2006; 32 (04) 411-429
- 31 Mancini M, El-Gohary M, Pearson S. et al. Continuous monitoring of turning in Parkinson's disease: rehabilitation potential. NeuroRehabilitation 2015; 37 (01) 3-10
- 32 Lord S, Galna B, Yarnall AJ. et al. Natural history of falls in an incident cohort of Parkinson's disease: early evolution, risk and protective features. J Neurol 2017; 264 (11) 2268-2276
- 33 Hiorth YH, Alves G, Larsen JP, Schulz J, Tysnes O-B, Pedersen KF. Long-term risk of falls in an incident Parkinson's disease cohort: the Norwegian ParkWest study. J Neurol 2017; 264 (02) 364-372
- 34 Duncan GW, Khoo TK, Yarnall AJ. et al. Health-related quality of life in early Parkinson's disease: the impact of nonmotor symptoms. Mov Disord 2014; 29 (02) 195-202
- 35 Dogan VB, Koksal A, Dirican A, Baybas S, Dirican A, Dogan GB. Independent effect of fatigue on health-related quality of life in patients with idiopathic Parkinson's disease. Neurol Sci 2015; 36 (12) 2221-2226
- 36 Asahina M, Vichayanrat E, Low DA, Iodice V, Mathias CJ. Autonomic dysfunction in parkinsonian disorders: assessment and pathophysiology. J Neurol Neurosurg Psychiatry 2013; 84 (06) 674-680
- 37 Liepelt-Scarfone I, Pilotto A, Müller K. et al. Autonomic dysfunction in subjects at high risk for Parkinson's disease. J Neurol 2015; 262 (12) 2643-2652
- 38 Fasano A, Visanji NP, Liu LWC, Lang AE, Pfeiffer RF. Gastrointestinal dysfunction in Parkinson's disease. Lancet Neurol 2015; 14 (06) 625-639
- 39 Pfeiffer RF. Gastrointestinal dysfunction in Parkinson's disease. Curr Treat Options Neurol 2018; 20 (12) 54
- 40 Tseng M-T, Lin C-H. Pain in early-stage Parkinson's disease: implications from clinical features to pathophysiology mechanisms. J Formos Med Assoc 2017; 116 (08) 571-581
- 41 Allen NE, Moloney N, van Vliet V, Canning CG. The rationale for exercise in the management of pain in Parkinson's disease. J Parkinsons Dis 2015; 5 (02) 229-239
- 42 Beiske AG, Loge JH, Rønningen A, Svensson E. Pain in Parkinson's disease: prevalence and characteristics. Pain 2009; 141 (1-2): 173-177
- 43 Riley D, Lang AE, Blair RD, Birnbaum A, Reid B. Frozen shoulder and other shoulder disturbances in Parkinson's disease. J Neurol Neurosurg Psychiatry 1989; 52 (01) 63-66
- 44 Schott GD. Pain in Parkinson's disease. Pain 1985; 22 (04) 407-411
- 45 Stamey W, Davidson A, Jankovic J. Shoulder pain: a presenting symptom of Parkinson disease. J Clin Rheumatol 2008; 14 (04) 253-254
- 46 Defazio G, Berardelli A, Fabbrini G. et al. Pain as a nonmotor symptom of Parkinson disease: evidence from a case-control study. Arch Neurol 2008; 65 (09) 1191-1194
- 47 Kelley GA, Kelley KS. Exercise and sleep: a systematic review of previous meta-analyses. J Evid Based Med 2017; 10 (01) 26-36
- 48 Neviani F, Belvederi Murri M, Mussi C. et al. Physical exercise for late life depression: effects on cognition and disability. Int Psychogeriatr 2017; 29 (07) 1105-1112
- 49 Wegner M, Helmich I, Machado S, Nardi AE, Arias-Carrion O, Budde H. Effects of exercise on anxiety and depression disorders: review of meta- analyses and neurobiological mechanisms. CNS Neurol Disord Drug Targets 2014; 13 (06) 1002-1014
- 50 O'Connor SR, Tully MA, Ryan B. et al. Walking exercise for chronic musculoskeletal pain: systematic review and meta-analysis. Arch Phys Med Rehabil 2015; 96 (04) 724-734.e3
- 51 Mak MK, Wong-Yu IS, Shen X, Chung CL. Long-term effects of exercise and physical therapy in people with Parkinson disease. Nat Rev Neurol 2017; 13 (11) 689-703
- 52 Tomlinson CL, Patel S, Meek C. et al. Physiotherapy versus placebo or no intervention in Parkinson's disease. Cochrane Database Syst Rev 2013; 9 (09) CD002817
- 53 Mehrholz J, Friis R, Kugler J, Twork S, Storch A, Pohl M. Treadmill training for patients with Parkinson's disease. Cochrane Database Syst Rev 2010; (01) CD007830
- 54 Fang X, Han D, Cheng Q. et al. Association of levels of physical activity with risk of Parkinson disease: a systematic review and meta-analysis. JAMA Netw Open 2018; 1 (05) e182421
- 55 Xu Q, Park Y, Huang X. et al. Physical activities and future risk of Parkinson disease. Neurology 2010; 75 (04) 341-348
- 56 Ahlskog JE. Aerobic exercise: evidence for a direct brain effect to slow Parkinson disease progression. Mayo Clin Proc 2018; 93 (03) 360-372
- 57 Petzinger GM, Holschneider DP, Fisher BE. et al. The effects of exercise on dopamine neurotransmission in Parkinson's disease: targeting neuroplasticity to modulate basal ganglia circuitry. Brain Plast 2015; 1 (01) 29-39
- 58 Petzinger GM, Fisher BE, McEwen S, Beeler JA, Walsh JP, Jakowec MW. Exercise-enhanced neuroplasticity targeting motor and cognitive circuitry in Parkinson's disease. Lancet Neurol 2013; 12 (07) 716-726
- 59 Hirsch MA, Iyer SS, Sanjak M. Exercise-induced neuroplasticity in human Parkinson's disease: What is the evidence telling us?. Parkinsonism Relat Disord 2016; 22 (Suppl. 01) S78-S81
- 60 Schenkman M, Moore CG, Kohrt WM. et al. Effect of high-intensity treadmill exercise on motor symptoms in patients with de novo Parkinson disease: a phase 2 randomized clinical trial. JAMA Neurol 2018; 75 (02) 219-226
- 61 van der Kolk NM, de Vries NM, Kessels RPC. et al. Effectiveness of home-based and remotely supervised aerobic exercise in Parkinson's disease: a double-blind, randomised controlled trial. Lancet Neurol 2019; 18 (11) 998-1008
- 62 Shulman LM, Katzel LI, Ivey FM. et al. Randomized clinical trial of 3 types of physical exercise for patients with Parkinson disease. JAMA Neurol 2013; 70 (02) 183-190
- 63 Schenkman M, Hall DA, Barón AE, Schwartz RS, Mettler P, Kohrt WM. Exercise for people in early- or mid-stage Parkinson disease: a 16-month randomized controlled trial. Phys Ther 2012; 92 (11) 1395-1410
- 64 Uc EY, Doerschug KC, Magnotta V. et al. Phase I/II randomized trial of aerobic exercise in Parkinson disease in a community setting. Neurology 2014; 83 (05) 413-425
- 65 Mirelman A, Bonato P, Camicioli R. et al. Gait impairments in Parkinson's disease. Lancet Neurol 2019; 18 (07) 697-708
- 66 Cugusi L, Solla P, Serpe R. et al. Effects of a Nordic Walking program on motor and non-motor symptoms, functional performance and body composition in patients with Parkinson's disease. NeuroRehabilitation 2015; 37 (02) 245-254
- 67 Picelli A, Varalta V, Melotti C. et al. Effects of treadmill training on cognitive and motor features of patients with mild to moderate Parkinson's disease: a pilot, single-blind, randomized controlled trial. Funct Neurol 2016; 31 (01) 25-31
- 68 Amara AW, Memon AA. Effects of exercise on non-motor symptoms in Parkinson's disease. Clin Ther 2018; 40 (01) 8-15
- 69 Falvo MJ, Schilling BK, Earhart GM. Parkinson's disease and resistive exercise: rationale, review, and recommendations. Mov Disord 2008; 23 (01) 1-11
- 70 Allen NE, Canning CG, Sherrington C, Fung VSC. Bradykinesia, muscle weakness and reduced muscle power in Parkinson's disease. Mov Disord 2009; 24 (09) 1344-1351
- 71 Allen NE, Sherrington C, Canning CG, Fung VSC. Reduced muscle power is associated with slower walking velocity and falls in people with Parkinson's disease. Parkinsonism Relat Disord 2010; 16 (04) 261-264
- 72 Chung CLH, Thilarajah S, Tan D. Effectiveness of resistance training on muscle strength and physical function in people with Parkinson's disease: a systematic review and meta-analysis. Clin Rehabil 2016; 30 (01) 11-23
- 73 Ramazzina I, Bernazzoli B, Costantino C. Systematic review on strength training in Parkinson's disease: an unsolved question. Clin Interv Aging 2017; 12: 619-628
- 74 Roeder L, Costello JT, Smith SS, Stewart IB, Kerr GK. Effects of resistance training on measures of muscular strength in people with Parkinson's disease: a systematic review and meta-analysis. PLoS One 2015; 10 (07) e0132135
- 75 Cruickshank TM, Reyes AR, Ziman MR. A systematic review and meta-analysis of strength training in individuals with multiple sclerosis or Parkinson disease. Medicine (Baltimore) 2015; 94 (04) e411
- 76 Troche MS, Okun MS, Rosenbek JC. et al. Aspiration and swallowing in Parkinson disease and rehabilitation with EMST: a randomized trial. Neurology 2010; 75 (21) 1912-1919
- 77 Dibble LE, Foreman KB, Addison O, Marcus RL, LaStayo PC. Exercise and medication effects on persons with Parkinson disease across the domains of disability: a randomized clinical trial. J Neurol Phys Ther 2015; 39 (02) 85-92
- 78 Corcos DM, Robichaud JA, David FJ. et al. A two-year randomized controlled trial of progressive resistance exercise for Parkinson's disease. Mov Disord 2013; 28 (09) 1230-1240
- 79 Kelly NA, Ford MP, Standaert DG. et al. Novel, high-intensity exercise prescription improves muscle mass, mitochondrial function, and physical capacity in individuals with Parkinson's disease. J Appl Physiol (1985) 2014; 116 (05) 582-592
- 80 Paul SS, Canning CG, Song J, Fung VS, Sherrington C. Leg muscle power is enhanced by training in people with Parkinson's disease: a randomized controlled trial. Clin Rehabil 2014; 28 (03) 275-288
- 81 David FJ, Robichaud JA, Leurgans SE. et al. Exercise improves cognition in Parkinson's disease: the PRET-PD randomized, clinical trial. Mov Disord 2015; 30 (12) 1657-1663
- 82 Prodoehl J, Rafferty MR, David FJ. et al. Two-year exercise program improves physical function in Parkinson's disease: the PRET-PD randomized clinical trial. Neurorehabil Neural Repair 2015; 29 (02) 112-122
- 83 Rafferty MR, Prodoehl J, Robichaud JA. et al. Effects of 2 years of exercise on gait impairment in people with Parkinson disease: the PRET-PD randomized trial. J Neurol Phys Ther 2017; 41 (01) 21-30
- 84 David FJ, Robichaud JA, Vaillancourt DE. et al. Progressive resistance exercise restores some properties of the triphasic EMG pattern and improves bradykinesia: the PRET-PD randomized clinical trial. J Neurophysiol 2016; 116 (05) 2298-2311
- 85 Allen NE, Schwarzel AK, Canning CG. Recurrent falls in Parkinson's disease: a systematic review. Parkinsons Dis 2013; 2013: 906274
- 86 Shen X, Wong-Yu ISK, Mak MKY. Effects of exercise on falls, balance, and gait ability in Parkinson's disease: a meta-analysis. Neurorehabil Neural Repair 2016; 30 (06) 512-527
- 87 Canning CG, Sherrington C, Lord SR. et al. Exercise for falls prevention in Parkinson disease: a randomized controlled trial. Neurology 2015; 84 (03) 304-312
- 88 Morris ME, Menz HB, McGinley JL. et al. A randomized controlled trial to reduce falls in people with Parkinson's disease. Neurorehabil Neural Repair 2015; 29 (08) 777-785
- 89 Mirelman A, Rochester L, Maidan I. et al. Addition of a non-immersive virtual reality component to treadmill training to reduce fall risk in older adults (V-TIME): a randomised controlled trial. Lancet 2016; 388 (10050): 1170-1182
- 90 Chivers Seymour K, Pickering R, Rochester L. et al. Multicentre, randomised controlled trial of PDSAFE, a physiotherapist-delivered fall prevention programme for people with Parkinson's. J Neurol Neurosurg Psychiatry 2019; 90 (07) 774-782
- 91 Goodwin VA, Richards SH, Henley W, Ewings P, Taylor AH, Campbell JL. An exercise intervention to prevent falls in people with Parkinson's disease: a pragmatic randomised controlled trial. J Neurol Neurosurg Psychiatry 2011; 82 (11) 1232-1238
- 92 Li F, Harmer P, Fitzgerald K. et al. Tai chi and postural stability in patients with Parkinson's disease. N Engl J Med 2012; 366 (06) 511-519
- 93 Pérez de la Cruz S. Effectiveness of aquatic therapy for the control of pain and increased functionality in people with Parkinson's disease: a randomized clinical trial. Eur J Phys Rehabil Med 2017; 53 (06) 825-832
- 94 King LA, Wilhelm J, Chen Y. et al; Effects of Group. Effects of group, individual, and home exercise in persons with Parkinson disease: a randomized clinical trial. J Neurol Phys Ther 2015; 39 (04) 204-212
- 95 Kwok JYY, Kwan JCY, Auyeung M. et al. Effects of mindfulness yoga vs stretching and resistance training exercises on anxiety and depression for people with Parkinson disease: a randomized clinical trial. JAMA Neurol 2019; 76 (07) 755-763
- 96 Conradsson D, Löfgren N, Nero H. et al. The effects of highly challenging balance training in elderly with Parkinson's disease: a randomized controlled trial. Neurorehabil Neural Repair 2015; 29 (09) 827-836
- 97 Ellis TD, Cavanaugh JT, DeAngelis T. et al. Comparative effectiveness of mHealth-supported exercise compared with exercise alone for people with Parkinson disease: randomized controlled pilot study. Phys Ther 2019; 99 (02) 203-216
- 98 Nadeau A, Pourcher E, Corbeil P. Effects of 24 wk of treadmill training on gait performance in Parkinson's disease. Med Sci Sports Exerc 2014; 46 (04) 645-655
- 99 Bombieri F, Schena F, Pellegrini B, Barone P, Tinazzi M, Erro R. Walking on four limbs: a systematic review of Nordic walking in Parkinson disease. Parkinsonism Relat Disord 2017; 38: 8-12
- 100 Reuter I, Mehnert S, Leone P, Kaps M, Oechsner M, Engelhardt M. Effects of a flexibility and relaxation programme, walking, and Nordic walking on Parkinson's disease. J Aging Res 2011; 2011: 232473
- 101 Ghai S, Ghai I, Schmitz G, Effenberg AO. Effect of rhythmic auditory cueing on parkinsonian gait: a systematic review and meta-analysis. Sci Rep 2018; 8 (01) 506
- 102 Ginis P, Nackaerts E, Nieuwboer A, Heremans E. Cueing for people with Parkinson's disease with freezing of gait: a narrative review of the state-of-the-art and novel perspectives. Ann Phys Rehabil Med 2018; 61 (06) 407-413
- 103 Sweeney D, Quinlan LR, Browne P, Richardson M, Meskell P, ÓLaighin G. A technological review of wearable cueing devices addressing freezing of gait in Parkinson's disease. Sensors (Basel) 2019; 19 (06) E1277
- 104 Ginis P, Nieuwboer A, Dorfman M. et al. Feasibility and effects of home-based smartphone-delivered automated feedback training for gait in people with Parkinson's disease: a pilot randomized controlled trial. Parkinsonism Relat Disord 2016; 22: 28-34
- 105 Raffegeau TE, Krehbiel LM, Kang N. et al. A meta-analysis: Parkinson's disease and dual-task walking. Parkinsonism Relat Disord 2019; 62: 28-35
- 106 Bloem BR, Grimbergen YAM, van Dijk JG, Munneke M. The “posture second” strategy: a review of wrong priorities in Parkinson's disease. J Neurol Sci 2006; 248 (1-2): 196-204
- 107 Strouwen C, Molenaar EALM, Münks L. et al. Training dual tasks together or apart in Parkinson's disease: results from the DUALITY trial. Mov Disord 2017; 32 (08) 1201-1210
- 108 Geroin C, Nonnekes J, de Vries NM. et al. Does dual-task training improve spatiotemporal gait parameters in Parkinson's disease?. Parkinsonism Relat Disord 2018; 55: 86-91
- 109 Fullard ME, Thibault DP, Hill A. et al; Parkinson Study Group Healthcare Outcomes and Disparities Working Group. Utilization of rehabilitation therapy services in Parkinson disease in the United States. Neurology 2017; 89 (11) 1162-1169
- 110 Nijkrake MJ, Keus SHJ, Oostendorp RAB. et al. Allied health care in Parkinson's disease: referral, consultation, and professional expertise. Mov Disord 2009; 24 (02) 282-286
- 111 Parkinson's UK. Life with Parkinson's today–room for improvement. London:: Parkinson's UK; 2007
- 112 Cheng EM, Tonn S, Swain-Eng R, Factor SA, Weiner WJ, Bever Jr CT. American Academy of Neurology Parkinson Disease Measure Development Panel. Quality improvement in neurology: AAN Parkinson disease quality measures: report of the Quality Measurement and Reporting Subcommittee of the American Academy of Neurology. Neurology 2010; 75 (22) 2021-2027
- 113 Rogers G, Davies D, Pink J, Cooper P. Parkinson's disease: summary of updated NICE guidance. BMJ 2017; 358: j1951
- 114 Ellis T, Cavanaugh JT, Earhart GM. et al. Factors associated with exercise behavior in people with Parkinson disease. Phys Ther 2011; 91 (12) 1838-1848
- 115 Ellis T, Boudreau JK, DeAngelis TR. et al. Barriers to exercise in people with Parkinson disease. Phys Ther 2013; 93 (05) 628-636
- 116 den Brok MGHE, van Dalen JW, van Gool WA, Moll van Charante EP, de Bie RMA, Richard E. Apathy in Parkinson's disease: a systematic review and meta-analysis. Mov Disord 2015; 30 (06) 759-769
- 117 Reijnders JSAM, Ehrt U, Weber WEJ, Aarsland D, Leentjens AFG. A systematic review of prevalence studies of depression in Parkinson's disease. Mov Disord 2008; 23 (02) 183-189 , quiz 313
- 118 Frazzitta G, Maestri R, Bertotti G. et al. Intensive rehabilitation treatment in early Parkinson's disease: a randomized pilot study with a 2-year follow-up. Neurorehabil Neural Repair 2015; 29 (02) 123-131
- 119 Duncan RP, Leddy AL, Cavanaugh JT. et al. Detecting and predicting balance decline in Parkinson disease: a prospective cohort study. J Parkinsons Dis 2015; 5 (01) 131-139