A Randomised Controlled Trial of Home-based Exercise Intervention for Caregivers of Persons With Dementia

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

272 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-05-31

Study Completion Date

2017-03-31

Brief Summary

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The study aims to compare the efficacy of a home-based structured exercise programme (12-step sitting Tai Chi) involving both persons with dementia and their caregivers with a standard non-exercise social contact control in treating depression among caregivers. The effects of exercise on their cognition, quality of life and balance ability are also assessed. We will also examine if BDNF polymorphisms modulate mood changes in response to exercise intervention. Focus groups will be organised at the end to find out the facilitators and barriers in taking up exercise. The findings may offer an avenue of intervention by providing a low cost, relatively safe and effective treatment for dementia caregivers, which may in turn benefit the persons with dementia.

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Detailed Description

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The proposed study is a single-blind randomised controlled trial for two years. We will compare the efficacy of a home-based structured exercise programme (12-step sitting Tai Chi) for both carers and care recipients with a standard non-exercise social contact control in the treatment of depression among caregivers of persons with dementia. The study hypotheses include:

1. The structured home-based exercise programme will reduce caregiver depression. (Primary outcome)
2. The home-based exercise will improve caregivers' cognitive performance, quality of life and balance ability at the end of the study. (Secondary outcome)
3. The home-based exercise will improve the cognitive performance, quality of life and balance ability of persons with dementia at the end of the study. (Secondary outcome)
4. We also hypothesise that BDNF gene modulates mood changes in response to exercise intervention. (Secondary outcome)

Conditions

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Depression

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

SINGLE

Investigators

Study Groups

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12-step sitting Tai Chi Chuan

The intervention is a simplified Tai Chi Chuan exercise, which consists of 12 steps, including weight shifting in different sitting positions, trunk and upper limb movements, and alternate thigh lift in a smooth and coordinated manner.

Group Type ACTIVE_COMPARATOR

12-step sitting Tai Chi Chuan

Intervention Type OTHER

The intervention consists of eight home-based sessions on 12-step sitting Tai Chi Chuan. Each session will last for an hour.

Control

We provide participants in the control group with a level of social contact equivalent to the intervention group, which comprises structured conversations on topic other than physical activity.

Group Type PLACEBO_COMPARATOR

Control

Intervention Type OTHER

The control consists of eight home-based sessions on useful health-care information. Each session will last for an hour.

Interventions

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12-step sitting Tai Chi Chuan

The intervention consists of eight home-based sessions on 12-step sitting Tai Chi Chuan. Each session will last for an hour.

Intervention Type OTHER

Control

The control consists of eight home-based sessions on useful health-care information. Each session will last for an hour.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Caregivers

* 18 years of age and above
* Live with persons with dementia
* 15-item Geriatric Depression Scale (GDS) \>0 and \<8
* No regular (i.e. ≥ 3 times/week) Tai Chi practice or other forms of mind-body exercise (e.g. yoga, qigong, mindfulness training) in the past six months
* Understand Chinese
* If they are on an antidepressant, they will not be included in the study unless they have been receiving pharmacological treatment on a steady dose for three months

Care recipient

* Aged 60 years or above
* Dementia diagnosis confirmed by a physician
* Dependence in at least one Activities of daily living(ADL)
* Mini Mental State Examination (MMSE) \> 10
* No regular (i.e. ≥ 3 times/week) Tai Chi practice or other forms of mind-body exercise (e.g. yoga, qigong, mindfulness training) in the past six months

Exclusion Criteria

Caregivers

* Presence of psychotic symptoms, imminently suicidal, unstable medical conditions (e.g. recent heart attack, recent stroke, episodes of dizziness, fainting attacks) or significant orthopaedic problems rendering participants unsuitable for physical training
* Carers who are found to have mental conditions that warrants psychiatric assessment and/or treatment (e.g. GDS \>8, i.e. local cut-off score for significant depressive symptoms, or suicidal) will be referred to appropriate units for follow up

Care recipient

* Presence of psychotic symptoms, unstable medical conditions (e.g. recent heart attack, recent stroke, episodes of dizziness, fainting attacks) or significant orthopaedic problems rendering participants unsuitable for physical training

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No