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Unrecognized ConditionNCT03016416

The Influence of Rhythm, Cognitive Task and Physical Activity on the Cardiac ANS in Chronic Stroke Patients

An observational study of Unrecognized Condition, run by Clalit Health Services.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Autonomic dysfunction is a common complication of stroke that may lead to poor rehabilitation outcomes and to increase in mortality. The severity of the autonomic dysfunction can be measured in many ways, but the most common way is assessment of the sympathetic-parasympathetic equilibrium by heart rate variability… Read more about this study

Who is it for?
Ages 60 to 99 yearsHealthy volunteers can take part
Conditions the study is for
Unrecognized Condition
How many people
32 participants
Where
No sites listed yet
Study dates
Feb 2017to Dec 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 to 99 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The research will include two study groups, each with 16 participants. Participants in the study group will include 16 patients after first ischemic stroke, one sided, in the chronic phase. * Participants in the control group will include 16 healthy adults with equivalent age and lifestyle and without stroke history.

Who may be able to join

  • All participants will be > 60 years, have Clalit health insurance, walking and Hebrew native speakers. Number of man and woman participating in the study will be equal.

Who cannot join

  • Individuals with any of the following criteria will not participate in the study: participants with communication problems such as language, hearing or visual problems, recurrent strokes, cognitive deficiency (MoCA≤ 26) (Toglia et al., 2011), neglect by BIT - Star cancellation test (Wilsonet et al., 1987), patients with central or peripheral neurological problems, heart pacemaker and/or patients that use medications that effect the autonomic nerve system such asβ blockers, or use alcohol or drugs.
  • Patients that suffer from background illness that can effect their ability to cycle such as knee OA.

About this study

Official title: The Influence of Rhythm, Cognitive Task and Physical Activity on the Cardiac Autonomic Nerve System in Chronic Stroke Patients and in a Control Group

Autonomic dysfunction is a common complication of stroke that may lead to poor rehabilitation outcomes and to increase in mortality. The severity of the autonomic dysfunction can be measured in many ways, but the most common way is assessment of the sympathetic-parasympathetic equilibrium by heart rate variability analysis. It is known that the plasticity of the brain can influence the autonomic nerve system and that providing appropriate stimuli encourages these changes. It was found that stimulation of rhythm, stimulation of cognitive tasks and stimulation of activity, influence the autonomic nerve system in healthy subjects. Thus, we can ask if an integrated task (activity, cognitive, rhythm) may influence the autonomic nervous system and cause an increase in brain activity, therefore contributing to the rehabilitation of stroke patients. Taken together, the purpose of this study is to examine the influence of stimulation of rhythm, stimulation of cognition, stimulation of activity and combined stimulation, on the autonomic nerve system. This effect will be tested by measuring heart rate variability in chronic stroke patients and in a control group.

Read the detailed description

background and Rationale: Autonomic dysfunction is a common complication of stroke that may lead to poor rehabilitation outcomes and to increase in mortality. Although this dysfunction is a common symptom of stroke, both in the acute phase and in the chronic phase, it is not a specific therapeutic target yet. The severity of the autonomic dysfunction can be measured in many ways, but the most common way is assessment of the sympathetic-parasympathetic equilibrium by heart rate variability analysis. It is known that the plasticity of the brain can influence the autonomic nerve system and that providing appropriate stimuli encourages these changes. It was found that stimulation of rhythm, stimulation of cognitive tasks (in particular, stimulation of executive functions) and stimulation of activity, influence the autonomic nerve system in healthy subjects. Thus, we can ask if an integrated task (activity, cognitive, rhythm) may influence the autonomic nervous system and cause an increase in brain activity, therefore contributing to the rehabilitation of stroke patients. Taken together, the purpose of this study is to examine the influence of stimulation of rapid or slow rhythm, stimulation of cognition by cognitive tasks, stimulation of activity by pedaling a fitness bike and combined stimulation, on the autonomic nerve system. This effect will be tested by measuring heart rate variability in chronic stroke patients and in a control group with equivalent age and lifestyle.

The Medical Device:

Heart rate and heart rate variability will be monitored by Polar RS800CX watch (PolarElectro OY, Kempele, Finland(. A transmitter placed on the patient's chest will collect the data. This data will be stored in the watch's computer and then analyzed in a specific Polar software (Polar Protrainer 5 inc.). An appropriate filtration will be made after a preliminary study. Pedaling capability, RPM, will be collected from cadence sensor with Bluetooth smart.

The Purpose of this Medical Research:

The purpose of this study is to examine the influence of stimulation of rapid or slow rhythm, stimulation of cognition by cognitive tasks, stimulation of activity by pedaling a fitness bike and combined stimulation, on the autonomic nerve system in chronic stroke patients and in a control group with equivalent age and lifestyle.

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT03016416
Study groupRoleWhat they receive
chronic stroke patientsParticipants for the study group will be recruited from the Clalit Health Services- Ben Yair Rehabilitation Center in Jaffa Israel.
control groupThe control group will be with equivalent age and lifestyle as the studt group. Participants for the control group will be recruited via solicitation adds at the Ben Yair Rehabilitation Center and at near-by clinics.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Heart rate variability

    Heart rate variability will be monitored by Polar RS800CX watch (PolarElectro OY, Kempele, Finland). A transmitter put on the patient's chest will collect the data. This data will be stored in the watch's computer and then analyzed in a specific Polar software (Polar Protrainer 5 inc.). An appropriate filtration will be made after a preliminary study.

    Measured: 90 min

Secondary outcomes (2)
  1. Pedaling capability

    Pedaling capability, rpm, will be collected from cadence sensor with Bluetooth smart

    Measured: 25 min

  2. Cognitive outcomes

    Cognitive outcomes will be evaluated by Digit Span, a sub section of Wechsler Adult Intelligence test (Choi et al., 2014).

    Measured: 10 min task

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Jan 2017 (estimated)
  2. Study startFeb 2017
  3. Primary completionDec 2017 (estimated)
  4. Study completionDec 2017 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
32 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03016416
Sponsor's protocol ID
0063-16-COM
Status last verified
Jan 2017
First submitted
25 Dec 2016
Last updated
10 Jan 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Unrecognized Condition, run by Clalit Health Services.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 10 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Heart rate variability (time frame: 90 min). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jan 2017.

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