MovDisordV3, Main, Merge, bibRecord, 002619

Heart Rate Changes During Freezing of Gait in Patients with Parkinson's Disease

Identifieur interne : 002619 ( Main/Merge ); précédent : 002618; suivant : 002620

Heart Rate Changes During Freezing of Gait in Patients with Parkinson's Disease

Auteurs : Inbal Maidan [Israël] ; Meir Plotnik [Israël] ; Anat Mirelman [Israël, États-Unis] ; Aner Weiss [Israël] ; Nir Giladi [Israël] ; Jeffrey M. Hausdorff [Israël, États-Unis]

Source :

Movement disorders [ 0885-3185 ] ; 2010.

RBID : Pascal:10-0491594

Descripteurs français

Pascal (Inist)
- Maladie de Parkinson, Pathologie du système nerveux, Rythme cardiaque, Congélation, Homme, Système nerveux autonome.
Wicri :
- topic : Congélation, Homme.

English descriptors

KwdEn :
- Autonomic nervous system, Freezing, Heart rate, Human, Nervous system diseases, Parkinson disease.

Abstract

Freezing of gait (FOG) is one of the most disabling symptoms that affect patients with Parkinson's disease (PD). Although the pathophysiology underlying FOG largely remains an enigma, several lines of evidence suggest that the autonomic nervous system might be involved. To this end, we tested the hypothesis that heart rate (HR) increases during FOG and, further, that HR increases just before FOG. To evaluate these hypotheses, 15 healthy older adults, 10 patients with PD who experienced FOG, and 10 patients who did not were studied. Patients with PD were tested during their "off" medication state. HR and HR variability were measured as subjects carried out tasks that frequently provoke FOG; 120 FOG episodes were evaluated. During FOG, HR increased (P = 0.001) by an average of 1.8 bpm, compared with HR measured before the beginning of FOG. HR also increased just before FOG, by 1 bpm (P < 0.0001). In contrast, during sudden stops and 180° turns, HR decreased by almost 2 bpm (P < 0.0001). HR variability was not associated with FOG. To our knowledge, these findings are the first to document the association of FOG to autonomic system activation, as manifested by HR dynamics. One explanation is that the changes in HR before and during FOG may be a sympathetic response that, secondary to limbic activation, contributes to the development of freezing. Although further studies are needed to evaluate these associations, the current results provide experimental evidence linking impaired motor blockades to autonomic nervous system function among patients with PD.

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Pascal:10-0491594

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Heart Rate Changes During Freezing of Gait in Patients with Parkinson's Disease</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Autonomic nervous system</term>
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<term>Nervous system diseases</term>
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<term>Pathologie du   système nerveux</term>
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<term>Congélation</term>
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<front><div type="abstract" xml:lang="en">Freezing of gait (FOG) is one of the most disabling symptoms that affect patients with Parkinson's disease (PD). Although the pathophysiology underlying FOG largely remains an enigma, several lines of evidence suggest that the autonomic nervous system might be involved. To this end, we tested the hypothesis that heart rate (HR) increases during FOG and, further, that HR increases just before FOG. To evaluate these hypotheses, 15 healthy older adults, 10 patients with PD who experienced FOG, and 10 patients who did not were studied. Patients with PD were tested during their "off" medication state. HR and HR variability were measured as subjects carried out tasks that frequently provoke FOG; 120 FOG episodes were evaluated. During FOG, HR increased (P = 0.001) by an average of 1.8 bpm, compared with HR measured before the beginning of FOG. HR also increased just before FOG, by 1 bpm (P < 0.0001). In contrast, during sudden stops and 180° turns, HR decreased by almost 2 bpm (P < 0.0001). HR variability was not associated with FOG. To our knowledge, these findings are the first to document the association of FOG to autonomic system activation, as manifested by HR dynamics. One explanation is that the changes in HR before and during FOG may be a sympathetic response that, secondary to limbic activation, contributes to the development of freezing. Although further studies are needed to evaluate these associations, the current results provide experimental evidence linking impaired motor blockades to autonomic nervous system function among patients with PD.</div>
</front>
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<name sortKey="Giladi, Nir" sort="Giladi, Nir" uniqKey="Giladi N" first="Nir" last="Giladi">Nir Giladi</name>
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<name sortKey="Hausdorff, Jeffrey M" sort="Hausdorff, Jeffrey M" uniqKey="Hausdorff J" first="Jeffrey M." last="Hausdorff">Jeffrey M. Hausdorff</name>
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<country name="États-Unis"><region name="Massachusetts"><name sortKey="Mirelman, Anat" sort="Mirelman, Anat" uniqKey="Mirelman A" first="Anat" last="Mirelman">Anat Mirelman</name>
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<name sortKey="Hausdorff, Jeffrey M" sort="Hausdorff, Jeffrey M" uniqKey="Hausdorff J" first="Jeffrey M." last="Hausdorff">Jeffrey M. Hausdorff</name>
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	Movement Disorders (revue)
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Movement Disorders (revue)

Heart Rate Changes During Freezing of Gait in Patients with Parkinson's Disease

Heart Rate Changes During Freezing of Gait in Patients with Parkinson's Disease

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri