The purpose of this randomized controlled trial was to determine if increasing hours of selfmanagement rehabilitation had increasing benefits for health-related quality of life (HRQOL) in Parkinson's disease beyond best medical treatment, if effects persisted at two and six months follow-up, and if targeted compared to non-targeted HRQOL domains responded more to rehabilitation. Participants on best medication therapy were randomized to one of three conditions for six weeks intervention: 0 hrs of rehabilitation; 18 hrs of clinic group rehabilitation plus 9 hrs of attention control social sessions; and 27 hrs of rehabilitation, with 18 in clinic group rehabilitation and 9 hrs of rehabilitation designed to transfer clinic training into home and community routines. Results (N = 116) showed that at six weeks there was a beneficial effect of increased rehabilitation hours on HRQOL measured with the Parkinson's Disease Questionnaire-39 summary index (eta = .23, CI = .05 -.40, p =.01). Benefits persisted at follow-up. The difference between 18 and 27 hrs was not significant. Clinically relevant improvement occurred at a greater rate for 18 and 27 hrs (54% improved) than for 0 hrs (18% improved), a significant 36% difference in rates (95% CI = 20% to 52% difference). Effects were largest in two targeted domains: communication and mobility. More concerns with mobility and activities of daily living at baseline predicted more benefit from rehabilitation. KeywordsClinical trials Randomized controlled (CONSORT agreement); Health-related Quality of life; Parkinson's disease/Parkinsonism; Rehabilitation Health-related quality of life (HRQOL) is one's perceived health and well-being in personally valued domains of daily life.1 , 2 Parkinson's disease (PD) symptoms compromise HRQOL by making it difficult to participate in valued activities and roles of home and NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscript community life. Yet individuals who feel mastery over life activities and maintain participation in them experience less depression and more well-being.3 , 4 Effective management of PD begins with considering the person's HRQOL and promoting a sense of control in valued life domains that realistically are within the person's capacity to influence. 5 , 6 Our meta-analyses of previous studies found rehabilitation to improve performance in mobility and self-care activities in 25% more individuals with PD compared to control conditions.7 -9 Recent studies have strengthened the evidence that rehabilitation benefits HRQOL.10 -12 Few of these studies implemented well-defined interventions and tested effects with randomized controlled trials, and fewer yet attempted to test varying intensities of rehabilitation.13 Consequently we developed a specific, best practice rehabilitation intervention and used a randomized-controlled trial to test the effects of differing rehabilitation intensities on health-related quality of life.An interdisciplinary team of physical, occupational, and speech therapists ...

L-Dopa can cause hyperhomocysteinemia in PD patients, the extent of which is influenced by B-vitamin status. The B-vitamin requirements necessary to maintain normal plasma homocysteine concentrations are higher in L-dopa-treated patients than in those not on L-dopa therapy. B-Vitamin supplements may be warranted for PD patients on L-dopa therapy.

Objective The short-term benefits of exercise for persons with Parkinson Disease (PD) are well-established, but long-term adherence is limited. The aim of this study was to explore the feasibility, acceptability and preliminary evidence of effectiveness of a virtual exercise coach to promote daily walking in community dwelling persons with PD. Design Twenty subjects with PD participated in this Phase I single group, non-randomized clinical trial. Subjects were instructed to interact with the virtual exercise coach for 5 minutes, wear a pedometer and walk daily for one month. Retention rate, satisfaction and interaction history were assessed at 1-month. Six-minute walk and gait speed were assessed at baseline and post intervention. Results Participants were 55% female, mean age 65.6. At study completion, there was a 100% retention rate. Subjects had an average satisfaction score of 5.6/7 (with seven indicating maximal satisfaction) with the virtual exercise coach. Interaction history revealed that participants logged-in an average of 25.4 days (SD 7) out of the recommended 30 days. Mean adherence to daily walking was 85%. Both gait speed and the 6-minute walk test significantly improved (p<0.05). No adverse events were reported. Conclusions Sedentary persons with PD successfully used a computer and interacted with a virtual exercise coach. Retention, satisfaction and adherence to daily walking were high over one-month and significant improvements were seen in mobility.