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Limb Cooling in Essential Tremor

16. Januar 2019 aktualisiert von: University of Florida

Effects of Limb Cooling on Essential Tremor.

Essential Tremor (ET) is characterized by tremors affecting the arms. The investigators will examine the effects of non-pharmacological limb cooling on clinical and physiological characteristics in patients presenting with ET at three different temperatures; and will measure changes in tremor amplitude after cooling of the upper limb.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Once the subject has agreed to participate in the study the following assessments will be performed.

Three non-pharmacological assessments will be performed at different temperature to the upper limbs. The first will be a baseline assessment with upper limbs maintaining a normal body temperature (96-98°F). The second assessment will be performed with upper limbs at a temperature of 59°F and the third will be performed at a temperature of 80°F for a period of 10 minutes. At the end of 10 minutes, tremor measurements will be 15, 40, and 60 minutes.

  1. Assessments will include the Tremor Rating Scale (TRS), Handwriting Assessment Battery (HAB) and the Functional Dexterity Test (FDT).
  2. The Bagnoli and Trigno EMG systems will record surface EMG signals from muscles and accelerometer readings.

Studientyp

Beobachtungs

Einschreibung (Tatsächlich)

27

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

  • Vereinigte Staaten
    • Florida
      • Gainesville, Florida, Vereinigte Staaten, 32611
        • University of Florida, Movement Disorders Center

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 95 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Ja

Studienberechtigte Geschlechter

Alle

Probenahmeverfahren

Wahrscheinlichkeitsstichprobe

Studienpopulation

The investigators will enroll 24 subjects diagnosed with Essential Tremor (ET) and 24 subjects with no diagnosed of ET.

Beschreibung

Inclusion Criteria:

  • Age range 18 to 95 years,
  • Clinical diagnosis of essential tremor for at least a year,
  • A +2 or worse action or kinetic tremor of one or both upper limbs involving at least the forearm and/or hand

Exclusion Criteria:

  • Dermatologic lesions in upper limbs (e.g. skin cancer, eczema, fresh or healing wounds, abrasions, acne, pustules, abscesses, or skin rash),
  • Sensory loss in the upper limbs,
  • Known history of sensitivity to cold (i.e., cold urticaria),
  • Known peripheral vascular disease,
  • Raynaud's phenomenon,
  • Scleroderma

Healthy normal controls will be enrolled through advertisements. All controls will be examined to ensure that they are neurologically healthy.

The exclusion criteria for controls will remain same as those for patient subjects.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
Limb Cooling Assessment of ET Control
Healthy, volunteers with no known dermatological lesions, sensitivity to cold, or peripheral vascular disease.
Verfahren: Limb Cooling Assessment of ET
The non-pharmacological treatment assessments of limb cooling will take place for the subjects which will include the upper limbs. Both clinical and physiological recordings will be measured for a difference in tremors at three different temperatures. 1)baseline assessment maintaining a normal body temperature (96-98°F). 2) at a temperature of 59°F and 3) at a temperature of 80°F for a period of 10 minutes. The clinical assessments will include the Tremor Rating Scale (TRS), Handwriting Assessment Battery (HAB) and the Functional Dexterity Test (FDT). In addition, the Bagnoli and Trigno EMG systems to record surface EMG signals from muscles and accelerometer readings.
Limb Cooling Assessment of ET Experimental
Patients with known essential tremor for at least a year, and +2 or worse action or kinetic tremor of one or both upper limbs involving at least the forearm and/or hand.
Verfahren: Limb Cooling Assessment of ET
The non-pharmacological treatment assessments of limb cooling will take place for the subjects which will include the upper limbs. Both clinical and physiological recordings will be measured for a difference in tremors at three different temperatures. 1)baseline assessment maintaining a normal body temperature (96-98°F). 2) at a temperature of 59°F and 3) at a temperature of 80°F for a period of 10 minutes. The clinical assessments will include the Tremor Rating Scale (TRS), Handwriting Assessment Battery (HAB) and the Functional Dexterity Test (FDT). In addition, the Bagnoli and Trigno EMG systems to record surface EMG signals from muscles and accelerometer readings.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Hand writing assessment battery on limb cooling at 60 minutes post-cooling
Zeitfenster: 60 minutes post-cooling.
Handwriting assessment battery includes pen control and manipulation subtests showed high to perfect agreement (line drawing subtest, κ = 1.0; dot subtest, κ = 0.80). The speed subtest showed perfect agreement (ICC = 1.0). Writing legibility showed high agreement for all five subtests (ICC = 0.71-0.83).
60 minutes post-cooling.
Tremor rating scale on limb cooling at 40 minutes post-cooling
Zeitfenster: 40 minutes post-cooling.
Tremor Rating Scale (TRS), consists of 11 items that evaluate tremor in the head, arms, and legs. The rater assigns a score of 0 to 4 for each item, in ascending order of severity.
40 minutes post-cooling.
Functional dexterity test on limb cooling at 60 minutes post-cooling
Zeitfenster: 60 minutes post-cooling.
Functional Dexterity Test (FDT) two scores are obtained: (1) time, in seconds, to complete the test and (2) combined total time with penalty seconds added to the initial time. If the patient exceeds 55 seconds, he or she receives a non-functional rating.
60 minutes post-cooling.
Hand writing assessment battery on limb cooling at 15 minutes post-cooling
Zeitfenster: 15 minutes post-cooling.
Handwriting assessment battery includes pen control and manipulation subtests showed high to perfect agreement (line drawing subtest, κ = 1.0; dot subtest, κ = 0.80). The speed subtest showed perfect agreement (ICC = 1.0). Writing legibility showed high agreement for all five subtests (ICC = 0.71-0.83).
15 minutes post-cooling.
Hand writing assessment battery on limb cooling at 40 minutes post-cooling
Zeitfenster: 40 minutes post-cooling.
Handwriting assessment battery includes pen control and manipulation subtests showed high to perfect agreement (line drawing subtest, κ = 1.0; dot subtest, κ = 0.80). The speed subtest showed perfect agreement (ICC = 1.0). Writing legibility showed high agreement for all five subtests (ICC = 0.71-0.83).
40 minutes post-cooling.
Tremor rating scale on limb cooling at 15 minutes post-cooling
Zeitfenster: 15 minutes post-cooling.
Tremor Rating Scale (TRS), consists of 11 items that evaluate tremor in the head, arms, and legs. The rater assigns a score of 0 to 4 for each item, in ascending order of severity.
15 minutes post-cooling.
Functional dexterity test on limb cooling at 15 minutes post-cooling
Zeitfenster: 15 minutes post-cooling.
Functional Dexterity Test (FDT) two scores are obtained: (1) time, in seconds, to complete the test and (2) combined total time with penalty seconds added to the initial time. If the patient exceeds 55 seconds, he or she receives a non-functional rating.
15 minutes post-cooling.
Functional dexterity test on limb cooling at 40 minutes post-cooling
Zeitfenster: 40 minutes post-cooling.
Functional Dexterity Test (FDT) two scores are obtained: (1) time, in seconds, to complete the test and (2) combined total time with penalty seconds added to the initial time. If the patient exceeds 55 seconds, he or she receives a non-functional rating.
40 minutes post-cooling.
Tremor rating scale on limb cooling at 60 minutes post-cooling
Zeitfenster: 60 minutes post-cooling.
Tremor Rating Scale (TRS), consists of 11 items that evaluate tremor in the head, arms, and legs. The rater assigns a score of 0 to 4 for each item, in ascending order of severity.
60 minutes post-cooling.

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Effect of limb cooling on the physiological characteristics of essential tremors.
Zeitfenster: 60 minutes post-cooling.
To determine the physiological change in response to limb cooling, secondary outcome measures will include surface electromyography (EMG) with accelerometry.
60 minutes post-cooling.
Effect of limb cooling on the physiological characteristics of essential tremors.
Zeitfenster: 40 minutes post-cooling.
To determine the physiological change in response to limb cooling, secondary outcome measures will include surface electromyography (EMG) with accelerometry.
40 minutes post-cooling.
Effect of limb cooling on the physiological characteristics of essential tremors.
Zeitfenster: 15 minutes post-cooling.
To determine the physiological change in response to limb cooling, secondary outcome measures will include surface electromyography (EMG) with accelerometry.
15 minutes post-cooling.

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University of Florida

Ermittler

  • Hauptermittler: Aparna W Shukla, M.D, University of Florida

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Nützliche Links

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. Oktober 2014

Primärer Abschluss (Tatsächlich)

1. August 2016

Studienabschluss (Tatsächlich)

14. Januar 2019

Studienanmeldedaten

Zuerst eingereicht

14. Februar 2014

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

18. Februar 2014

Zuerst gepostet (Schätzen)

20. Februar 2014

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

18. Januar 2019

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

16. Januar 2019

Zuletzt verifiziert

1. Januar 2019

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • IRB201300662

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