Effect of Mediterranean-DASH Intervention for Neurodegenerative Delay Plus Forest Bathing

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

COMPLETED

Clinical Phase

NA

Total Enrollment

48 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-01-03

Study Completion Date

2023-03-31

Brief Summary

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This proposed study will be the first to investigate the effect of the Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) Plus Forest Bathing (FB) on blood pressure (BP) and cognitive health for those who are aged 50 and above with hypertension. Hypertension is a major public health issue, and four developments make this research study remarkably important.

It is well-documented the Mediterranean diet and Dietary Approach to Stop Hypertension (DASH) diet have demonstrated efficacy for improving cardiovascular and cognitive health. The Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet is a hybrid of the Mediterranean and DASH diets. FB promotes relaxation by inducing the activity of the parasympathetic nervous system, which decrease Heart rate and BP. The initial quantitative phase of the study, a three-arm RCT will be conducted to examine the effects of MIND, MIND plus FB and usual care as control on hypertension. The subsequent qualitative phase in-depth focus group interview is to explore the barriers and facilitators of MIND diet uptake and FB. The participants will include older HK Chinese adults who meet the criteria for hypertension stage 1 and stage 2 of the AHA. The primary outcomes are systolic BP and the secondary outcomes are point of care test of lipid panel, cognitive function, waist-to-hip ratio, body fat percentages and body mass index. The outcome measurements will be recorded before the interventions (T0), immediately after the 4-week face-to-face intervention (T1) and 12-week after 3-month intervention (T2). A total of 48 those who are aged 50 and above with hypertension will be recruited from community centres in Hong Kong to Randomized Controlled Trial and 10 participants differing in levels of compliance to MIND and FB will be purposively selected for face-to-face semi-structured focus group interviews.

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Detailed Description

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Research aim

1. This study will aim to investigate the effect of MIND and MIND plus FB on hypertension.
2. To examine the effect of MIND alone on hypertension by controlling other covariates.
3. To describe the perceived capability, opportunity, and motivation to the uptake of the MIND and FB.
4. To explore the barriers and facilitators to the MIND and FB.

The MIND-FB is proposed in response to (i) high BP is the one of important risk factors for chronic diseases. (ii) although there is robust evidence to show that the important of lowering BP to reduce chance of getting cardiovascular morbidity and mortality, the global burden of hypertension is still increasing. The objectives of MIND-FB are to perform high quality research focused on those who are aged 50 and above, novel transdisciplinary approaches to ensure the building capacity of public health workforce to deliver quality lifestyle modification intervention to control BP of those who are aged 50 and above.

Conditions

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High Blood Pressure

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

SINGLE

Outcome Assessors

It will be a single-blind trial; only the assessors will be blinded to the treatment assignment.

Study Groups

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MIND diet intervention

3-month intervention of dietary counseling to adhere to the MIND diet

Group Type EXPERIMENTAL

MIND diet

Intervention Type BEHAVIORAL

MIND diet intervention will be a 3-month nutrition programme consisting of 4 face-to-face nutrition counselling sessions (one session per week, 60 min per session) in the activity room of each participating community centre. All intervention sessions will be conducted by a registered nutritionist and trained student helpers. In the nutrition sessions, the participants will learn to modify their diet to meet MIND diet guidelines.

MIND-plus-FB intervention

3-month intervention of dietary counseling to adhere to the MIND diet plus Forest Bathing intervention

Group Type EXPERIMENTAL

Mind diet plus Forest Bathing

Intervention Type BEHAVIORAL

MIND diet intervention will be a 3-month nutrition programme consisting of 4 face-to-face nutrition counselling sessions (one session per week, 60 min per session) in the activity room of each participating community centre. All intervention sessions will be conducted by a registered nutritionist and trained student helpers. In the nutrition sessions, the participants will learn to modify their diet to meet MIND diet guidelines. Forest Bathing will be another session per week, 2 hours forest bathing sessions on 4-consecutive weekends in a country park at daytime with sunny, cloudy or drizzling conditions. The walking distance for each forest bathing is one to two kilometres. The coach-to-participant ratio is approximately 1:16. Participants will then be required to self-practice 2h FB in the country park at daytime at the weekends of 8th week and 12th week of the intervention.

Control group

For the control group, the participants will be received routine care.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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MIND diet

MIND diet intervention will be a 3-month nutrition programme consisting of 4 face-to-face nutrition counselling sessions (one session per week, 60 min per session) in the activity room of each participating community centre. All intervention sessions will be conducted by a registered nutritionist and trained student helpers. In the nutrition sessions, the participants will learn to modify their diet to meet MIND diet guidelines.

Intervention Type BEHAVIORAL

Mind diet plus Forest Bathing

MIND diet intervention will be a 3-month nutrition programme consisting of 4 face-to-face nutrition counselling sessions (one session per week, 60 min per session) in the activity room of each participating community centre. All intervention sessions will be conducted by a registered nutritionist and trained student helpers. In the nutrition sessions, the participants will learn to modify their diet to meet MIND diet guidelines. Forest Bathing will be another session per week, 2 hours forest bathing sessions on 4-consecutive weekends in a country park at daytime with sunny, cloudy or drizzling conditions. The walking distance for each forest bathing is one to two kilometres. The coach-to-participant ratio is approximately 1:16. Participants will then be required to self-practice 2h FB in the country park at daytime at the weekends of 8th week and 12th week of the intervention.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* aged 60 and above;
* Chinese ethnicity;
* ability to speak and understand Chinese;
* fulfilment of the AHA criteria for stage 1 and stage 2 hypertension; and
* who could walk independently

Exclusion Criteria

* have allergy to more than one type of food (nuts, berries, olive oil, or fish);
* participation in any dietary or relaxation programme within the past 3 months

Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No