Effects of age and pathology on stance modifications in response to increased postural threat.
Identifieur interne : 001245 ( Main/Exploration ); précédent : 001244; suivant : 001246Effects of age and pathology on stance modifications in response to increased postural threat.
Auteurs : James A. Shaw [Canada] ; Leslie E. Stefanyk ; James S. Frank ; Mandar S. Jog ; Allan L. AdkinSource :
- Gait & posture [ 1879-2219 ] ; 2012.
English descriptors
- KwdEn :
- Accidental Falls (prevention & control), Adaptation, Physiological (physiology), Age Factors, Aged, Analysis of Variance, Anxiety (complications), Biomechanical Phenomena, Case-Control Studies, Female, Gait (physiology), Humans, Male, Middle Aged, Parkinson Disease (physiopathology), Physical Stimulation (adverse effects), Postural Balance (physiology), Posture (physiology), Reaction Time, Reference Values, Risk Factors, Sensation Disorders (physiopathology), Sensation Disorders (psychology), Young Adult.
- MESH :
- adverse effects : Physical Stimulation.
- complications : Anxiety.
- physiology : Adaptation, Physiological, Gait, Postural Balance, Posture.
- physiopathology : Parkinson Disease, Sensation Disorders.
- prevention & control : Accidental Falls.
- psychology : Sensation Disorders.
- Age Factors, Aged, Analysis of Variance, Biomechanical Phenomena, Case-Control Studies, Female, Humans, Male, Middle Aged, Reaction Time, Reference Values, Risk Factors, Young Adult.
Abstract
This study investigated modifications to standing posture in response to elevated postural anxiety evoked by a potential physical threat to stability. Sixteen young adults, 16 older adults and 16 patients diagnosed with Parkinson's disease (PD) stood with or without the expectation of a threat to their posture (i.e., external trunk perturbation). This method allowed for the assessment of the effects of anticipatory anxiety on standing posture associated with an ecologically valid and direct threat to stability. Our manipulation was successful as all participants, independent of age and disease, reported significant increases in postural anxiety when anticipating a threat to their posture. The trunk sway modifications observed in response to elevated postural anxiety were dependent on age and disease. Young adults showed increased trunk sway in both pitch and roll directions while older adults demonstrated decreased trunk sway but only in the roll direction when standing and expecting a threat to posture compared to standing without this threat. Individuals with PD showed no significant changes in trunk pitch or roll sway when anticipating a threat to posture compared to standing without this threat. Our findings suggest that the effects of postural anxiety on postural control are dependent on the context associated with the postural threat, and age and disease status.
DOI: 10.1016/j.gaitpost.2011.12.020
PubMed: 22277369
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effects of age and pathology on stance modifications in response to increased postural threat.</title><author><name sortKey="Shaw, James A" sort="Shaw, James A" uniqKey="Shaw J" first="James A" last="Shaw">James A. Shaw</name><affiliation wicri:level="1"><nlm:affiliation>Department of Kinesiology, Brock University, St. Catharines, ON, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Kinesiology, Brock University, St. Catharines, ON</wicri:regionArea><wicri:noRegion>ON</wicri:noRegion></affiliation></author><author><name sortKey="Stefanyk, Leslie E" sort="Stefanyk, Leslie E" uniqKey="Stefanyk L" first="Leslie E" last="Stefanyk">Leslie E. Stefanyk</name></author><author><name sortKey="Frank, James S" sort="Frank, James S" uniqKey="Frank J" first="James S" last="Frank">James S. Frank</name></author><author><name sortKey="Jog, Mandar S" sort="Jog, Mandar S" uniqKey="Jog M" first="Mandar S" last="Jog">Mandar S. Jog</name></author><author><name sortKey="Adkin, Allan L" sort="Adkin, Allan L" uniqKey="Adkin A" first="Allan L" last="Adkin">Allan L. Adkin</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22277369</idno><idno type="pmid">22277369</idno><idno type="doi">10.1016/j.gaitpost.2011.12.020</idno><idno type="wicri:Area/PubMed/Corpus">000A87</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000A87</idno><idno type="wicri:Area/PubMed/Curation">000A87</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000A87</idno><idno type="wicri:Area/PubMed/Checkpoint">000A87</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000A87</idno><idno type="wicri:Area/Ncbi/Merge">001051</idno><idno type="wicri:Area/Ncbi/Curation">001051</idno><idno type="wicri:Area/Ncbi/Checkpoint">001051</idno><idno type="wicri:Area/Main/Merge">001271</idno><idno type="wicri:Area/Main/Curation">001245</idno><idno type="wicri:Area/Main/Exploration">001245</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Effects of age and pathology on stance modifications in response to increased postural threat.</title><author><name sortKey="Shaw, James A" sort="Shaw, James A" uniqKey="Shaw J" first="James A" last="Shaw">James A. Shaw</name><affiliation wicri:level="1"><nlm:affiliation>Department of Kinesiology, Brock University, St. Catharines, ON, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Kinesiology, Brock University, St. Catharines, ON</wicri:regionArea><wicri:noRegion>ON</wicri:noRegion></affiliation></author><author><name sortKey="Stefanyk, Leslie E" sort="Stefanyk, Leslie E" uniqKey="Stefanyk L" first="Leslie E" last="Stefanyk">Leslie E. Stefanyk</name></author><author><name sortKey="Frank, James S" sort="Frank, James S" uniqKey="Frank J" first="James S" last="Frank">James S. Frank</name></author><author><name sortKey="Jog, Mandar S" sort="Jog, Mandar S" uniqKey="Jog M" first="Mandar S" last="Jog">Mandar S. Jog</name></author><author><name sortKey="Adkin, Allan L" sort="Adkin, Allan L" uniqKey="Adkin A" first="Allan L" last="Adkin">Allan L. Adkin</name></author></analytic><series><title level="j">Gait & posture</title><idno type="eISSN">1879-2219</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accidental Falls (prevention & control)</term><term>Adaptation, Physiological (physiology)</term><term>Age Factors</term><term>Aged</term><term>Analysis of Variance</term><term>Anxiety (complications)</term><term>Biomechanical Phenomena</term><term>Case-Control Studies</term><term>Female</term><term>Gait (physiology)</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Parkinson Disease (physiopathology)</term><term>Physical Stimulation (adverse effects)</term><term>Postural Balance (physiology)</term><term>Posture (physiology)</term><term>Reaction Time</term><term>Reference Values</term><term>Risk Factors</term><term>Sensation Disorders (physiopathology)</term><term>Sensation Disorders (psychology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="adverse effects" xml:lang="en"><term>Physical Stimulation</term></keywords><keywords scheme="MESH" qualifier="complications" xml:lang="en"><term>Anxiety</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Adaptation, Physiological</term><term>Gait</term><term>Postural Balance</term><term>Posture</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Parkinson Disease</term><term>Sensation Disorders</term></keywords><keywords scheme="MESH" qualifier="prevention & control" xml:lang="en"><term>Accidental Falls</term></keywords><keywords scheme="MESH" qualifier="psychology" xml:lang="en"><term>Sensation Disorders</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Age Factors</term><term>Aged</term><term>Analysis of Variance</term><term>Biomechanical Phenomena</term><term>Case-Control Studies</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Reaction Time</term><term>Reference Values</term><term>Risk Factors</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study investigated modifications to standing posture in response to elevated postural anxiety evoked by a potential physical threat to stability. Sixteen young adults, 16 older adults and 16 patients diagnosed with Parkinson's disease (PD) stood with or without the expectation of a threat to their posture (i.e., external trunk perturbation). This method allowed for the assessment of the effects of anticipatory anxiety on standing posture associated with an ecologically valid and direct threat to stability. Our manipulation was successful as all participants, independent of age and disease, reported significant increases in postural anxiety when anticipating a threat to their posture. The trunk sway modifications observed in response to elevated postural anxiety were dependent on age and disease. Young adults showed increased trunk sway in both pitch and roll directions while older adults demonstrated decreased trunk sway but only in the roll direction when standing and expecting a threat to posture compared to standing without this threat. Individuals with PD showed no significant changes in trunk pitch or roll sway when anticipating a threat to posture compared to standing without this threat. Our findings suggest that the effects of postural anxiety on postural control are dependent on the context associated with the postural threat, and age and disease status.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Adkin, Allan L" sort="Adkin, Allan L" uniqKey="Adkin A" first="Allan L" last="Adkin">Allan L. Adkin</name><name sortKey="Frank, James S" sort="Frank, James S" uniqKey="Frank J" first="James S" last="Frank">James S. Frank</name><name sortKey="Jog, Mandar S" sort="Jog, Mandar S" uniqKey="Jog M" first="Mandar S" last="Jog">Mandar S. Jog</name><name sortKey="Stefanyk, Leslie E" sort="Stefanyk, Leslie E" uniqKey="Stefanyk L" first="Leslie E" last="Stefanyk">Leslie E. Stefanyk</name></noCountry><country name="Canada"><noRegion><name sortKey="Shaw, James A" sort="Shaw, James A" uniqKey="Shaw J" first="James A" last="Shaw">James A. Shaw</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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