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DOI:	10.1371/journal.pone.0155012
论文题名:	Anticipatory and Compensatory Postural Adjustments in Response to External Lateral Shoulder Perturbations in Subjects with Parkinson’s Disease
作者:	Alexandre Kretzer e Castro de Azevedo; Renato Claudino; Josilene Souza Conceição; Alessandra Swarowsky; Márcio José dos Santos
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-5-6
卷:	11, 期:5
语种:	英语
英文关键词:	Parkinson disease ; Pendulums ; Postural control ; Electromyography ; Shoulders ; Musculoskeletal system ; Perturbation (geology) ; Joints (anatomy)
英文摘要:	The purpose of this study was to investigate the anticipatory (APA) and compensatory (CPA) postural adjustments in individuals with Parkinson’s disease (PD) during lateral instability of posture. Twenty-six subjects (13 individuals with PD and 13 healthy matched controls) were exposed to predictable lateral postural perturbations. The electromyographic (EMG) activity of the lateral muscles and the displacement of the center of pressure (COP) were recorded during four time intervals that are typical for postural adjustments, i.e., immediately before (APA1, APA2) and after (CPA1 and CPA2) the postural disturbances. The magnitude of the activity of the lateral muscles in the group with PD was lower only during the CPA time intervals and not during the anticipatory adjustments (APAs). Despite this finding, subjects with PD exhibit smaller COP excursions before and after the disturbance, probably due to lack of flexibility and proprioceptive impairments. The results of this study suggest that postural instability in subjects with PD can be partially explained by decreased postural sway, before and after perturbations, and reduced muscular activity after body disturbances. Our findings can motivate new studies to investigate therapeutic interventions that optimize the use of postural adjustment strategies in subjects with PD.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0155012&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/23658
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0155012.PDF（1945KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Physical Education, Center of Health and Sport Sciences, Master in Human Movement Sciences program, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil;Department of Physical Education, Center of Health and Sport Sciences, Master in Human Movement Sciences program, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil;Department of Physical Therapy, Center of Health and Sport Sciences, Master in Physical Therapy program, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil;Department of Physical Therapy, Center of Health and Sport Sciences, Master in Physical Therapy program, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil;Department of Physical Therapy, Center of Health and Sport Sciences, Master in Physical Therapy program, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil;Department of Physical Therapy and Rehabilitation Science, School of Health Professions, University of Kansas Medical Center, Kansas City, Kansas, United States of America

Recommended Citation:

Alexandre Kretzer e Castro de Azevedo,Renato Claudino,Josilene Souza Conceição,et al. Anticipatory and Compensatory Postural Adjustments in Response to External Lateral Shoulder Perturbations in Subjects with Parkinson’s Disease[J]. PLOS ONE,2016-01-01,11(5)

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