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Alzheimer DiseaseNCT01515982

Physical Exercise as an Additional Treatment for Alzheimer Disease

A study testing Aerobic Exercise in people with Alzheimer Disease, run by Universidade Federal do Rio de Janeiro at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The state of the art with regard to the neurodegenerative dementias, especially for Alzheimer´s disease (AD), is that their progression is still irreversible causing cognitive, motor, and behavioral impairment. Read more about this study

Who is it for?
Ages 60 years and older
Conditions the study is for
Alzheimer Disease
What is being tested?
Aerobic Exercise
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteBrazil
Study dates
Feb 2010to Dec 2013
Phase
Interventional
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of Alzheimer Disease according to the National Institute of Neurological and Communicative Disorders and Stroke- Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) and National Institute of Neurological Disorders and Stroke- Association Internationale pour la Recherche et l' Enseignement en Neurosciences (NINDS-AIREN),respectively
  • Mini-Mental State Examination (MMSE) score ≥ 15
  • Clinical Dementia Rating (CDR) score 1
  • Regular use of anticholinesterase drugs for at least six months
  • Cardiologist's authorization
  • At least six months without practicing physical exercises.

Who cannot join

  • Clinical depression or Cornell Scale ≥ 7
  • Other types of dementia
  • Physical limitation due to other pathologies or associated neurological disease
  • Severe or uncontrolled arterial hypertension
  • Marked visual and/or auditory deficit
  • Incapacity to perform physical exercise due to neurological or neuromuscular impairments
  • Illiteracy
  • Less than six months of treatment at the outpatient unit.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Universidade Federal do Rio de Janeiro

    Rio de Janeiro, Rio de Janeiro

Other trials in Brazil

About this study

The state of the art with regard to the neurodegenerative dementias, especially for Alzheimer´s disease (AD), is that their progression is still irreversible causing cognitive, motor, and behavioral impairment. Although the current pharmacological treatments attenuate cognitive decline in some cases, the majority of treatments does not avoid the motor and functional changes caused by the progress of the disease. Although several studies show that exercise has a positive effect when it comes to the treatment of the disease, some methodological questions affect the application of the training protocols. The use of recognized intensity patterns like maximum oxygen uptake (VO2max) and maximum heart rate (HRmax) percentage to control the training of patients with dementia is still rare in the literature. Therefore, this seems to interfere on the definition of an ideal prescription. Following this line of reasoning, the purpose of the present study is to assess the effect of moderate aerobic exercise on cognition and functional abilities in AD patients. Design: Randomized controlled trial, double-blinded, with 16-week follow-up. Setting: Center for Alzheimer's disease in the Institute of Psychiatry of the Federal University of Rio de Janeiro. Participants: Elderly with Alzheimer disease. Interventions: The patients will be randomly assigned to an exercise group (EG) on a treadmill (30 minutes, twice a week and moderate intensity of 60% VO2max) and a control group (CG). Main outcome measures: Cognitive function will be assessed using CAMCOG, Trail Making Test A, Digit Span, Stroop Test, Rey auditory-verbal learning test and Clock Test, and functional capacity will be evaluated using Berg Balance Scale (BERG), Sit-to-Stand test (STS), functional reach test (FR), and the time to up and go test (TUGT).

Read the detailed description
  • Design: Four-month controlled, randomized, and double-blind study. The patients will be recruited by trained psychiatrists from the Center for Alzheimer's disease in the Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ). They will be randomized with a blind design to an exercise group (EG) and control group (CG) by a researcher who will not participate of the initial assessments.
  • Intervention

On completion of the baseline assessment, all patients will be invited to engage in the exercise program. Those who accept to take part and will be available, having easy access to the facilities, will be included in the sample. The other ones will be included in the control group. So, subjects will be divided by two groups: medical care (control) and medical care + physical exercise.

  1. Medical care control group (C): Subjects will maintain clinical treatment.
  2. Medical care + exercise group (E): This group will be prescribed the exercise treatment as an adjunctive intervention to drug therapy. Patients who accept to participate in this group will be evaluated with a thorough clinical exam and with a resting electrocardiogram. The training exercise intensity is established at 60% of VO2máx. This intensity was determined using exercise prescription guidelines established by the American College of Sports Medicine (ACSM). Each aerobic session began with a 10-minute warm-up period (40%VO2máx), followed by 20 minutes of continuous treadmill walking at an intensity established by 60% of VO2máx, according to ACMS guidelines (2006). The exercise session will be concluded with a five minutes of cool down. Heart hate (Polar® Sport Tester, Finland) and perceived exertion (Borg Scale) will be monitored and recorded at each five minutes during each exercise session by physical education instructors. Subjects will be encouraged to attend two supervised exercise sessions per week for 16 weeks.
Being tested
Aerobic Exercise, Control Group
Keywords
Alzheimer's disease, Aerobic exercise, Physical training, Cognitive function, Functional capacity.
Medical subject headings
Alzheimer Disease

What participants receive

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

  • Aerobic ExerciseBehavioural

    The training exercise intensity is established at 60% of VO2máx. This intensity was determined using exercise prescription guidelines established by the American College of Sports Medicine (ACSM). Each aerobic session began with a 10-minute warm-up period (40%VO2máx), followed by 20 minutes of continuous treadmill walking at an intensity established by 60% of VO2máx. The exercise session will be concluded with a 5 minutes of cool down. Heart hate (Polar® Sport Tester, Finland) and perceived exertion (Borg Scale) will be monitored and recorded at each five minutes during each exercise session by physical education instructors.

  • Control GroupBehavioural

    All participants were asked not to commence any new exercise regimen.

Study groups in NCT01515982
Study groupRoleWhat they receive
Aerobic exerciseExperimentalThe training exercise intensity is established at 60% of VO2máx. Each aerobic session began with a 10-minute warm-up period (40%VO2máx), followed by 20 minutes of continuous treadmill walking at an intensity established by 60% of VO2máx. The exercise session will be concluded with a 5 minutes of cool down. Heart hate (Polar® Sport Tester, Finland) and perceived exertion (Borg Scale) will be monitored and recorded at each five minutes during each exercise session by physical education instructors.
Receives: Behavioral: Aerobic Exercise; Behavioral: Control Group
Control groupNo interventionAll participants were asked not to commence any new exercise regimen.

What is being measured

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

  1. Change from baseline in CAMCOG scale at 16 weeks

    The general cognitive state will be assessed by the Brazilian validated version of the CAMCOG, which is part of the cognitive evaluation developed by the CAMDEX (Cambridge Examination for Mental Disorders of the Elderly) and is subdivided in scales which assess orientation, expressive and comprehensive language, memory (including remote memory, recent memory and learning processes), attention, praxis, calculation, abstract thinking and perception.

    Measured: from date to randomization at 16 weeks

Secondary outcomes (4)
  1. Change from baseline in Time to Up and Go Test at 16 weeks

    The "Timed Up and Go" test (TUGT) and its modified version "Modified Timed up and go" (TUG mod) have been used with the objective of evaluating the functional mobility and the double task, respectively. In the first test, the patient walks three meters while the time is counted, and, in the second one, the patient is asked to walk and evoke names of animals. More than 10 seconds is considered risk of functional loss.

    Measured: from date to randomization at 16 weeks

  2. Change from baseline in Sit-to-Stand test at 16 weeks

    The Sit-to-Stand test (STS) counts the number of times the patient can sit down and stand up in 30 seconds. This test evaluates lower limb strength and it is associated to the cardiovascular capacity of elderly people.

    Measured: from date to randomization at 16 weeks

  3. Change from baseline in Berg Balance Scale at 16 weeks

    Berg Balance Scale (BERG) is composed by 14 tasks related to daily life and each item has one ordinal scale of five alternatives which vary from 0 to 4 points, with a total of 56 points.

    Measured: from date to randomization at 16 weeks

  4. Change from baseline in Trail Making Test at 16 weeks

    Both parts of the Trail Making Test consist of 25 circles distributed over a sheet of paper. In Part A, the circles are numbered 1 - 25, and the patient should draw lines to connect the numbers in ascending order. In Part B, the circles include both numbers (1 - 13) and letters (A - L); as in Part A, the patient draws lines to connect the circles in an ascending pattern, but with the added task of alternating between the numbers and letters. The patient should be instructed to connect the circles as quickly as possible, without lifting the pen or pencil from the paper.

    Measured: from date to randomization at 16 weeks

Timeline

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

  1. First posted24 Jan 2012 (estimated)
  2. Study startFeb 2010
  3. Primary completionJun 2013
  4. Study completionDec 2013

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Investigator
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01515982
Sponsor's protocol ID
60liv02-09B
Status last verified
Dec 2014
First submitted
12 Jan 2012
Last updated
3 Dec 2014
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Aerobic Exercise in people with Alzheimer Disease, run by Universidade Federal do Rio de Janeiro at 1 site in Brazil.

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 6 inclusion and 8 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: finished, as of the sponsor's last update on 3 Dec 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change from baseline in CAMCOG scale at 16 weeks (time frame: from date to randomization at 16 weeks). 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 3 Dec 2014.

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