Influence of perturbation velocity on balance control in Parkinson's disease
Underlying somatosensory processing deficits of joint rotation velocities may cause patients with Parkinson's disease (PD) to be more unstable for fast rather than slow balance perturbations. Such deficits could lead to reduced proprioceptive amplitude feedback triggered by perturbations, and t...
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| Veröffentlicht in: | PloS one 2014-01, Vol.9 (1), p.e86650 |
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| description | Underlying somatosensory processing deficits of joint rotation velocities may cause patients with Parkinson's disease (PD) to be more unstable for fast rather than slow balance perturbations. Such deficits could lead to reduced proprioceptive amplitude feedback triggered by perturbations, and thereby to smaller or delayed stabilizing postural responses. For this reason, we investigated whether support surface perturbation velocity affects balance reactions in PD patients. We examined postural responses of seven PD patients (OFF medication) and eight age-matched controls following backward rotations of a support-surface platform. Rotations occurred at three different speeds: fast (60 deg/s), medium (30 deg/s) or slow (3.8 deg/s), presented in random order. Each subject completed the protocol under eyes open and closed conditions. Full body kinematics, ankle torques and the number of near-falls were recorded. Patients were significantly more unstable than controls following fast perturbations (26% larger displacements of the body's centre of mass; P |
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Such deficits could lead to reduced proprioceptive amplitude feedback triggered by perturbations, and thereby to smaller or delayed stabilizing postural responses. For this reason, we investigated whether support surface perturbation velocity affects balance reactions in PD patients. We examined postural responses of seven PD patients (OFF medication) and eight age-matched controls following backward rotations of a support-surface platform. Rotations occurred at three different speeds: fast (60 deg/s), medium (30 deg/s) or slow (3.8 deg/s), presented in random order. Each subject completed the protocol under eyes open and closed conditions. Full body kinematics, ankle torques and the number of near-falls were recorded. Patients were significantly more unstable than controls following fast perturbations (26% larger displacements of the body's centre of mass; P<0.01), but not following slow perturbations. Also, more near-falls occurred in patients for fast rotations. Balance correcting ankle torques were weaker for patients than controls on the most affected side, but were stronger than controls for the least affected side. These differences were present both with eyes open and eyes closed (P<0.01). Fast support surface rotations caused greater instability and discriminated Parkinson patients better from controls than slow rotations. Although ankle torques on the most affected side were weaker, patients partially compensated for this by generating larger than normal stabilizing torques about the ankle joint on the least affected side. Without this compensation, instability may have been greater.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0086650</identifier><identifier>PMID: 24466187</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Analysis ; Ankle ; Area Under Curve ; Balance ; Biomechanical Phenomena ; Body kinematics ; Cognition & reasoning ; Control stability ; Disease control ; Drugs ; Eye ; Feedback ; Female ; Humans ; Joints ; Kinematics ; Male ; Medical research ; Medicine ; Middle Aged ; Movement disorders ; Neurodegenerative diseases ; Neurology ; Parkinson Disease - physiopathology ; Parkinson's disease ; Patients ; Perturbation ; Postural Balance ; Posture ; Proprioception ; Rotation ; Surface stability ; Torque ; Velocity</subject><ispartof>PloS one, 2014-01, Vol.9 (1), p.e86650</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Oude Nijhuis et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2014 Oude Nijhuis et al 2014 Oude Nijhuis et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-cfb5ae6ebd34fc5ef2c577ee534310f68dc150754ad0fbecab396e11335b4e053</citedby><cites>FETCH-LOGICAL-c692t-cfb5ae6ebd34fc5ef2c577ee534310f68dc150754ad0fbecab396e11335b4e053</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3899304/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3899304/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,2096,2915,23845,27901,27902,53766,53768,79343,79344</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24466187$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Oude Nijhuis, Lars B</creatorcontrib><creatorcontrib>Allum, John H J</creatorcontrib><creatorcontrib>Nanhoe-Mahabier, Wandana</creatorcontrib><creatorcontrib>Bloem, Bastiaan R</creatorcontrib><title>Influence of perturbation velocity on balance control in Parkinson's disease</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Underlying somatosensory processing deficits of joint rotation velocities may cause patients with Parkinson's disease (PD) to be more unstable for fast rather than slow balance perturbations. Such deficits could lead to reduced proprioceptive amplitude feedback triggered by perturbations, and thereby to smaller or delayed stabilizing postural responses. For this reason, we investigated whether support surface perturbation velocity affects balance reactions in PD patients. We examined postural responses of seven PD patients (OFF medication) and eight age-matched controls following backward rotations of a support-surface platform. Rotations occurred at three different speeds: fast (60 deg/s), medium (30 deg/s) or slow (3.8 deg/s), presented in random order. Each subject completed the protocol under eyes open and closed conditions. Full body kinematics, ankle torques and the number of near-falls were recorded. Patients were significantly more unstable than controls following fast perturbations (26% larger displacements of the body's centre of mass; P<0.01), but not following slow perturbations. Also, more near-falls occurred in patients for fast rotations. Balance correcting ankle torques were weaker for patients than controls on the most affected side, but were stronger than controls for the least affected side. These differences were present both with eyes open and eyes closed (P<0.01). Fast support surface rotations caused greater instability and discriminated Parkinson patients better from controls than slow rotations. Although ankle torques on the most affected side were weaker, patients partially compensated for this by generating larger than normal stabilizing torques about the ankle joint on the least affected side. Without this compensation, instability may have been greater.</description><subject>Analysis</subject><subject>Ankle</subject><subject>Area Under Curve</subject><subject>Balance</subject><subject>Biomechanical Phenomena</subject><subject>Body kinematics</subject><subject>Cognition & reasoning</subject><subject>Control stability</subject><subject>Disease control</subject><subject>Drugs</subject><subject>Eye</subject><subject>Feedback</subject><subject>Female</subject><subject>Humans</subject><subject>Joints</subject><subject>Kinematics</subject><subject>Male</subject><subject>Medical research</subject><subject>Medicine</subject><subject>Middle Aged</subject><subject>Movement disorders</subject><subject>Neurodegenerative diseases</subject><subject>Neurology</subject><subject>Parkinson Disease - physiopathology</subject><subject>Parkinson's disease</subject><subject>Patients</subject><subject>Perturbation</subject><subject>Postural Balance</subject><subject>Posture</subject><subject>Proprioception</subject><subject>Rotation</subject><subject>Surface stability</subject><subject>Torque</subject><subject>Velocity</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><sourceid>DOA</sourceid><recordid>eNqNkl2LEzEUhgdR3LX6D0QHBMWL1qT5mMmNsCx-FAorft2GTOakTU2Tmsws7r83Y2eXDihILhKS57w5efMWxVOMFphU-M0u9NErtzgEDwuEas4ZulecY0GWc75E5P7J-qx4lNIOIUYy9rA4W1LKOa6r82K98sb14DWUwZQHiF0fG9XZ4MtrcEHb7qbM60Y5NTA6-C4GV1pfflLxh_Up-FepbG0CleBx8cAol-DJOM-Kb-_ffb38OF9ffVhdXqznmotlN9emYQo4NC2hRjMwS82qCoARSjAyvG41ZqhiVLXINKBVQwQHjAlhDYX8iFnx_Kh7cCHJ0YgkMRUY59dmmVmxOhJtUDt5iHav4o0Myso_GyFupIqd1Q7kkjAqEAiENKIcGcFbI4a2NAiKDclab8fb-mYPrYZsgXIT0emJt1u5CdeS1EIQNDTzYhSI4WcPqftHyyO1Ubkr603IYnpvk5YXtKprRiuGMrX4C5VHC3ubfweMzfuTgteTguEH4Ve3UX1KcvXl8_-zV9-n7MsTdgvKddsUXD9EJ01BegR1DClFMHfOYSSHJN-6IYckyzHJuezZqet3RbfRJb8Bs4Xuzg</recordid><startdate>20140122</startdate><enddate>20140122</enddate><creator>Oude Nijhuis, Lars B</creator><creator>Allum, John H J</creator><creator>Nanhoe-Mahabier, Wandana</creator><creator>Bloem, Bastiaan R</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20140122</creationdate><title>Influence of perturbation velocity on balance control in Parkinson's disease</title><author>Oude Nijhuis, Lars B ; Allum, John H J ; Nanhoe-Mahabier, Wandana ; Bloem, Bastiaan R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-cfb5ae6ebd34fc5ef2c577ee534310f68dc150754ad0fbecab396e11335b4e053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Analysis</topic><topic>Ankle</topic><topic>Area Under Curve</topic><topic>Balance</topic><topic>Biomechanical Phenomena</topic><topic>Body kinematics</topic><topic>Cognition & reasoning</topic><topic>Control stability</topic><topic>Disease control</topic><topic>Drugs</topic><topic>Eye</topic><topic>Feedback</topic><topic>Female</topic><topic>Humans</topic><topic>Joints</topic><topic>Kinematics</topic><topic>Male</topic><topic>Medical research</topic><topic>Medicine</topic><topic>Middle Aged</topic><topic>Movement disorders</topic><topic>Neurodegenerative diseases</topic><topic>Neurology</topic><topic>Parkinson Disease - 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Such deficits could lead to reduced proprioceptive amplitude feedback triggered by perturbations, and thereby to smaller or delayed stabilizing postural responses. For this reason, we investigated whether support surface perturbation velocity affects balance reactions in PD patients. We examined postural responses of seven PD patients (OFF medication) and eight age-matched controls following backward rotations of a support-surface platform. Rotations occurred at three different speeds: fast (60 deg/s), medium (30 deg/s) or slow (3.8 deg/s), presented in random order. Each subject completed the protocol under eyes open and closed conditions. Full body kinematics, ankle torques and the number of near-falls were recorded. Patients were significantly more unstable than controls following fast perturbations (26% larger displacements of the body's centre of mass; P<0.01), but not following slow perturbations. Also, more near-falls occurred in patients for fast rotations. Balance correcting ankle torques were weaker for patients than controls on the most affected side, but were stronger than controls for the least affected side. These differences were present both with eyes open and eyes closed (P<0.01). Fast support surface rotations caused greater instability and discriminated Parkinson patients better from controls than slow rotations. Although ankle torques on the most affected side were weaker, patients partially compensated for this by generating larger than normal stabilizing torques about the ankle joint on the least affected side. Without this compensation, instability may have been greater.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24466187</pmid><doi>10.1371/journal.pone.0086650</doi><tpages>e86650</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Analysis Ankle Area Under Curve Balance Biomechanical Phenomena Body kinematics Cognition & reasoning Control stability Disease control Drugs Eye Feedback Female Humans Joints Kinematics Male Medical research Medicine Middle Aged Movement disorders Neurodegenerative diseases Neurology Parkinson Disease - physiopathology Parkinson's disease Patients Perturbation Postural Balance Posture Proprioception Rotation Surface stability Torque Velocity |
| title | Influence of perturbation velocity on balance control in Parkinson's disease |
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