This study aims to test the feasibility and acceptability of a 12 week online dietary promoting MIND diet behaviour. This study also tests the effectiveness of the MIND diet on cognitive function, mood, quality of life and participants capability, opportunity and motivation towards adoption of the MIND diet.
This study is a randomized controlled prospective follow up study, condition (control Vs intervention) x time(baseline Vs follow up) ANOVA with repeated measures design. Outcome measures for COM-B, cognitive function, mood and quality of life were recorded for both the intervention and control groups. With power set at .80, and alpha = .05, G\*Power indicated that a sample size of 36 would be required. Forty-one participants took part in the study. Participants were healthy male, and female aged between 40-55 years old living in Northern Ireland. There are 2 intervention arms and one control group. The intervention was designed using the Behaviour Change Wheel, with prior qualitative research informing the intervention. All statistical analyses were performed using the Statistical Package for the Social Sciences (SPSS) with significance set at P \< 0.05 throughout
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
41
12 week MIND diet study: Participants access a website that is theory driven using the Behaviour Change Wheel to help motivate and promote MIND diet adherence. Participants are to consume MIND diet foods daily and meet MIND diet weekly recommendations
Participants are to consume MIND diet food recommendations over a 12 week period with no support except for a self-monitoring resource and MIND diet guidelines
Life and Health Science
Londonderry, United Kingdom
Cognitive function
Tests used for this study were spatial working memory (SWM), spatial span (SSP), pattern recognition memory (PRM) and reaction time (RTI). These tests are computerised and measure the length of time it takes to complete task in milliseconds.
Time frame: 12 weeks
Mood
Positive and Negative Affect Scale bref was used to measure mood 4 times a day over 4 days at baseline and follow-up. The maximum score for positive affect is 50 with higher scores representing higher levels of positive affect. Negative affect scores are a maximum of 50 with lower scores representing lower levels of negative affect.
Time frame: 12 weeks
World Health Organisation Bref Quality of life
WHO bref questionnaire was used to measure quality of life at baseline and follow up. The maximum score is 100, with higher scores representing higher quality of life.
Time frame: 12 weeks
Capability, opportunity, motivation and behaviour model
COM-B questionnaire measuring participants capability opportunity and motivation towards adoption of the MIND diet at baseline and follow up. Maximum scores are 110 with higher scores representing higher capability, opportunity, motivation towards MIND diet behaviour.
Time frame: 12 weeks
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