Redistribution of Joint Moments and Dynamic Balance Control During Sit to Stand Task in Persons with Parkinson’s Disease

Author(s):  
Jared W. Skinner ◽  
Hyo Keun Lee ◽  
Chris J. Hass
Neuroscience ◽  
2011 ◽  
Vol 193 ◽  
pp. 363-369 ◽  
Author(s):  
S. Colnat-Coulbois ◽  
G.C. Gauchard ◽  
L. Maillard ◽  
G. Barroche ◽  
H. Vespignani ◽  
...  

2021 ◽  
pp. 1-14
Author(s):  
Bauke Wybren Dijkstra ◽  
Moran Gilat ◽  
L. Eduardo Cofré Lizama ◽  
Martina Mancini ◽  
Bruno Bergmans ◽  
...  

Background: People with Parkinson’s disease and freezing of gait (FOG; freezers) suffer from pronounced postural instability. However, the relationship between these phenomena remains unclear and has mostly been tested in paradigms requiring step generation. Objective: To determine if freezing-related dynamic balance deficits are present during a task without stepping and determine the influence of dopaminergic medication on dynamic balance control. Methods: Twenty-two freezers, 16 non-freezers, and 20 healthy age-matched controls performed mediolateral weight-shifts at increasing frequencies when following a visual target projected on a screen (MELBA task). The amplitude and phase shift differences between center of mass and target motion were measured. Balance scores (Mini-BESTest), 360° turning speed and the freezing ratio were also measured. Subjects with Parkinson’s disease were tested ON and partial OFF (overnight withdrawal) dopaminergic medication. Results: Freezers had comparable turning speed and balance scores to non-freezers and took more levodopa. Freezers produced hypokinetic weight-shift amplitudes throughout the MELBA task compared to non-freezers (p = 0.002), which were already present at task onset (p < 0.001). Freezers also displayed an earlier weight-shift breakdown than controls when OFF-medication (p = 0.008). Medication improved mediolateral weight-shifting in freezers and non-freezers. Freezers decreased their freezing ratio in response to medication. Conclusion: Hypokinetic weight-shifting proved a marked postural control deficit in freezers, while balance scores and turning speed were similar to non-freezers. Both weight-shift amplitudes and the freezing ratio were responsive to medication in freezers, suggesting axial motor vigor is levodopa-responsive. Future work needs to test whether weight-shifting and freezing severity can be further ameliorated through training.


2005 ◽  
Vol 86 (11) ◽  
pp. 2172-2176 ◽  
Author(s):  
Chris J. Hass ◽  
Dwight E. Waddell ◽  
Richard P. Fleming ◽  
Jorge L. Juncos ◽  
Robert J. Gregor

2020 ◽  
Vol 82 ◽  
pp. 68-74
Author(s):  
Daniel J Kuhman ◽  
Harrison C Walker ◽  
Christopher P Hurt

2004 ◽  
Vol 19 (9) ◽  
pp. 1012-1019 ◽  
Author(s):  
Margaret K.Y. Mak ◽  
Christina W.Y. Hui-Chan

2019 ◽  
Author(s):  
Sofie LaGrone ◽  
Conran Joseph ◽  
Hanna Johansson ◽  
Birgit Enberg ◽  
Erika Franzén

Abstract Background: Parkinson’s disease (PD) is a devastating neurodegenerative disorder. Reduced balance is one of the cardinal symptoms of PD, predisposing people living with PD to experience difficulties with the execution of tasks and activities, as well as hindering their involvement in meaningful life areas. Objective: The aim of this study was to explore how deficits in balance control manifest in everyday life and how it is managed by people with PD (PwPD). Design: Qualitative description was used. Methods: In-depth interviews were conducted with 18 participants, between the ages of 46 to 83 years, with mild to severe PD. Interview transcripts were analyzed using qualitative content analysis, following an inductive approach. Results: One theme emerged from the analysis: Increased planning—choreographing life. Within this overarching theme, two categories were identified, namely Limitations in mobility and New restricted functioning in everyday life, each with 3-4 sub-categories. The categories described how PwPD handled decreased balance control in their everyday life by using motor and cognitive strategies as a consequence of not trusting their body’s capacity to control balance. Activities in everyday life, as well as the ability to partake in leisure and social activities were profoundly affected. Conclusion: People with mild to severe PD used strategies to handle decreased balance and they choreographed their lives around their individual current state of mobility and balance. The knowledge gained from this study can be used to develop targeted interventions addressing the nuances of balance deficits in everyday life.


2020 ◽  
Author(s):  
Sofie LaGrone ◽  
Conran Joseph ◽  
Hanna Johansson ◽  
Birgit Enberg ◽  
Erika Franzén

Abstract Background Parkinson’s disease (PD) is a devastating neurodegenerative disorder. Reduced balance is one of the cardinal symptoms of PD, predisposing people living with PD to experience difficulties with the execution of tasks and activities, as well as hindering their involvement in meaningful life areas. The overarching aim of this study was to explore how deficits in balance control manifest in everyday life and how it is managed by people with PD (PwPD). Methods Qualitative description was used as methodology, and in-depth interviews were conducted with 18 participants, between the ages of 46 to 83 years, with mild to severe PD. Interview transcripts were analyzed using qualitative content analysis, following an inductive approach. Results One theme emerged from the analysis: Increased planning—choreographing life. Within this overarching theme, two categories were identified, namely Limitations in mobility and New restricted functioning in everyday life, each with 3-4 sub-categories. The categories described how PwPD handled decreased balance control in their everyday life by using motor and cognitive strategies as a consequence of not trusting their body’s capacity to control balance. Activities in everyday life, as well as the ability to partake in leisure and social activities were profoundly affected. Conclusion People with mild to severe PD used strategies to handle decreased balance and they choreographed their lives around their individual current state of mobility and balance. The knowledge gained from this study can be used to develop targeted interventions addressing the nuances of balance deficits in everyday life.


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