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Alteration of Cognitive FunctionNCT02270320

Cognitive Effects of Tai Chi Chuan in Healthy Older Adults and Older Adults

A study testing Physical activity in people with Alteration of Cognitive Function, run by National Taiwan University Hospital at 1 site in Taiwan.

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

Background: Promotion of cognitive functions of middle aged and older adults and prevention of dementia are important issues in the aging society. In recent years, studies have shown that Tai Chi Chuan (TCC) exercise can improve cognitive functions in healthy middle-aged and older adults, but not studies have… Read more about this study

Who is it for?
Ages 50 to 85 yearsHealthy volunteers can take part
Conditions the study is for
Alteration of Cognitive Function
What is being tested?
Physical activity
Could I receive a placebo?
No, everyone receives an active treatment
How many people
65 participants
Where
1 siteTaiwan
Study dates
Jan 2014to Aug 2015
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 50 to 85 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • age range between 50 - 85 years old.
  • education level > 6 years or can read and speak Chinese
  • Montreal Cognitive Assessment Taiwan version (MoCA) score >= 26
  • Clinical Dementia Rating (CDR) score = 0
  • right dominant hand

Who cannot join

  • any neurological diseases, ex stroke, Parkinson's disease, trauma, epilepsy
  • cardiac disease, cardiac infarction, angina, uncontrolled hypertension
  • spiritual disease, anxiety or depression (Geriatric Depression Scale 15-item short-form score >= 8)
  • Daily ability need helps (instrumental activities of daily living, IADL has one item score= 0 or 1)

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • National Taiwan University Hospital

    Taipei, Zhongzheng Dist, 100

Other trials in Taiwan

About this study

Official title: Study of School and Graduate Institute of Physical Therapy College of Medicine in Taiwan

Background: Promotion of cognitive functions of middle aged and older adults and prevention of dementia are important issues in the aging society. In recent years, studies have shown that Tai Chi Chuan (TCC) exercise can improve cognitive functions in healthy middle-aged and older adults, but not studies have investigated the neural mechanisms. Therefore, the purposes of this research project are: (1) to investigate the effects of TCC exercise intervention on improving cognitive functions and motor functions in healthy middle-aged and older adults; (2) to investigate the effects of TCC intervention on improving the integrity of frontostriatal fiber tracts, and areas and intensity of brain activation while performing a switching task in healthy middle-aged and older adults.

Methods: This project used the assessor-blind and randomized control clinical trial design. A total of 60 healthy middle-aged and older adults will be recruited, randomly allocated to two groups: experimental and control groups. Experimental group will receive a 60-minute exercise program, three times per week for 12 weeks. Control group will receive a telephone consultation once every two weeks for 12 weeks. All participants will receive clinical neuropsychological tests, Cambridge Neuropsychological Test Automated Battery tests, motor function tests, diffusion spectrum MR imaging, and functional MRI experiments before intervention, and at the end of intervention to realize the changes of cognitive function, motor function, integrity of neural tracts, and intensity and regions of functional activation while doing switching task of executive function in order to understand the cognitive effects and the neural mechanisms of TCC.

Read the detailed description

Background: Promotion of cognitive functions of middle aged and older adults and prevention of dementia are important issues in the aging society. In recent years, studies have shown that Tai Chi Chuan (TCC) exercise can improve cognitive functions in healthy middle-aged and older adults, but not studies have investigated the neural mechanisms. Therefore, the purposes of this research project are: (1) to investigate the effects of TCC exercise intervention on improving cognitive functions and motor functions in healthy middle-aged and older adults; (2) to investigate the effects of TCC intervention on improving the integrity of frontostriatal fiber tracts, and areas and intensity of brain activation while performing a switching task in healthy middle-aged and older adults.

Methods: This project used the assessor-blind and randomized control clinical trial design. A total of 60 healthy middle-aged and older adults will be recruited, randomly allocated to two groups: experimental and control groups. Experimental group will receive a 60-minute exercise program, three times per week for 12 weeks. Control group will receive a telephone consultation once every two weeks for 12 weeks. All participants will receive clinical neuropsychological tests, Cambridge Neuropsychological Test Automated Battery tests, motor function tests, diffusion spectrum MR imaging, and functional MRI experiments before intervention, and at the end of intervention to realize the changes of cognitive function, motor function, integrity of neural tracts, and intensity and regions of functional activation while doing switching task of executive function in order to understand the cognitive effects and the neural mechanisms of TCC.

Being tested
Physical activity
Keywords
Tai Chi Chuan, cognitive function, motor function, MRI

What participants receive

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

  • Physical activityBehavioural

    The training is 24 forms Yang-style Tai Chi Chuan exercise, which will perform a 60-minute exercise program, three times per week for 12 weeks.

Study groups in NCT02270320
Study groupRoleWhat they receive
ControlNo interventionControl group will receive a telephone consultation once every two weeks for 12 weeks.
Physical activityActive comparatorExperimental group will receive a 60-minute 24 forms Yang-style Tai Chi Chuan exercise program, three times per week for 12 weeks.
Receives: Behavioral: Physical activity

What is being measured

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

  1. General cognitive function

    Cognitive score on Montreal Cognitive Assessment Taiwan version (MoCA) and Clinical Dementia Rating (CDR).

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  2. Executive function

    Completed time (seconds) on Color Trail Test- Part 1\& 2, and number of errors from executive function task on Cambridge Neuropsychological Test Automated Battery (CANTAB).

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  3. Motor strength

    Upper and lower limbs' muscle strength (kg) on handheld dynamometer, grip test, and to test lower limb strength by measuring the completed times in 30 seconds, chair rise test.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  4. Flexibility

    Flexibility score (cm) on scratch test, chair sit and reach test.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  5. Balance

    Balance time (seconds) on eyes opened one-leg stance test.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  6. Coordination

    Coordination time (seconds) on four square step test and "Timed Up and Go" test

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  7. Endurance

    Walking distance (meters) on six-minute walking test.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  8. Physical activity level

    Physical activity score on "Physical Activity Scale for the Elderly" questionnaire.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  9. Memory function

    Memory score on Cambridge Neuropsychological Test Automated Battery (CANTAB).

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

Secondary outcomes (2)
  1. Brain functional activation

    Brain MR images were obtained with a 3T Siemens (Erlangen, Germany) whole-body MRI scanner. A Siemens 32-channel head array coil was used as a receiver. Functional MRI (fMRI) was acquired using a BOLD-weighted gradient-echo echoplanar image sequence (EPI) ( TR/TE=2000/24 ms, field of view= 192 mm, voxel dimensions 3 x 3 x 4 mm, matrix= 64 x 64, slice thickness= 4 mm, flip angle 90°), and 34 slices will be obtained with anterior-posterior phase encoding direction and covering the whole brain. The fMRI paradigm was the event-related designed switching task by E-prime 2.0. The fMRI imaging data processing and analysis were accomplished using SPM8 (Wellcome Department of Imaging Neuroscience). Statistical parametric maps of the t statistic, SPM{t}, were obtained with the threshold of p< 0.001 uncorrected. The brain functional activation results will be presented by the p value and the magnitude of Blood-oxygen-level dependent (BOLD) intensity.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

  2. Brain structural integrity

    Structural MRI was measured by T1, T2, and diffusion spectrum imaging (DSI). DSI will be performed to reconstruct tractography of the neural tracts. The DSI data was acquired by using a pulsed-gradient spin-echo diffusion EPI. The maximum diffusion sensitivity b value=4000 s/mm2, TR/TE=9600/130 ms, FOV=200 mm, and thickness=2.5 mm. Approximately 56 transaxial slices will be acquired encompassing the whole brain. The general fractional anisotropy (GFA) values, a quantitative index derived from the orientation distribution function to indicate diffusion anisotropy, were calculated at each voxel, The reconstruction of the tracts tractography was performed by using DSI Studio software. The integrity of these neural tracts will be presented by GFA value.

    Measured: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.

Timeline

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

  1. First posted21 Oct 2014 (estimated)
  2. Study startJan 2014
  3. Primary completionJul 2015
  4. Study completionAug 2015

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
Health services research
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02270320
Sponsor's protocol ID
201212161RIND
Other IDs
NSC 102-2410-H-002 -213 -MY2
Status last verified
Nov 2015
First submitted
9 Sep 2014
Last updated
10 Nov 2015
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Physical activity in people with Alteration of Cognitive Function, run by National Taiwan University Hospital at 1 site in Taiwan.

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 5 inclusion and 4 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 10 Nov 2015. 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 Taiwan. 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?

General cognitive function (time frame: This outcome will be assessed at baseline and up to 12 weeks exercise or control intervention.). The study lists 9 primary outcomes in all. 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 Nov 2015.

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