Investigating the relationship between mindfulness and self-control related to fruit and vegetable consumption in young adults.

• Register: ANZCTR
• Last refreshed on: 13 January 2020
• Main ID: ACTRN12614001222639
• Date of registration: 19/11/2014
• Prospective Registration: Yes
• Primary sponsor: Curtin University, School of Psychology and Speech Pathology
• Public title: Investigating the relationship between mindfulness and self-control related to fruit and vegetable consumption in young adults.
• Scientific title: "The effect of Mindfulness Training on Trait Self-control and the Intention-Behaviour Relationship in the Theory of Planned Behaviour" in university students, as assessed by daily fruit and vegetable intake (behaviour outcome).
• Date of first enrolment: 16/02/2015
• Target sample size: 100
• Recruitment status: Not yet recruiting
• URL: https://anzctr.org.au/ACTRN12614001222639.aspx
• Study type: Interventional
• Study design: Purpose: Educational / counselling / training; Allocation: Randomised controlled trial; Masking: Open (masking not used);Assignment: Parallel;
• Phase: Not Applicable

Countries of recruitment

Australia

Contacts

• Name: Dr Rosanna Rooney

• Name: A/Prof Barbara Mullan

Key inclusion & exclusion criteria

Inclusion criteria: Students enrolled at Curtin University.
Exclusion criteria: A psychiatric condition or history of substance abuse. Any personal reasons (spiritual or otherwise) for not wanting to learn meditation.

Age minimum: 18 Years
Age maximum: 55 Years
Gender: Both males and females

Health Condition(s) or Problem(s) studied

Mental Health - Studies of normal psychology, cognitive function and behaviour

Public Health - Health promotion/education

Diet and Nutrition - Obesity

Obesity;Diabetes;
Obesity
Diabetes

Intervention(s)

A 4-week behaviour intervention (BI) group designed to increase fruit and vegetable intake in young adults, compared to a combined 4-week behaviour intervention with mindfulness training (BIM) group. Both programs will take place in a classroom setting with one teacher and the group.

The behaviour intervention (BI) program will be developed specifically for this study and will comprise of 4 weekly 1-hour meetings over a one month period, consisting of the following topics:
a) Week 1: Information on health and behaviour and negative consequences of having an unhealthy diet.
b) Week 2: Information on other’s behaviour, seeking approval, and social comparisons.
c) Week 3: Motivation and instruction on how to successfully perform the behaviour.
d) Week 4: Tips on overcoming hindrances and issues opposing the desired behaviour.

The Behaviour Intervention and Mindfulness Group (BIM) will consist of the standard behaviour intervention (see above as presented to the BI group), with additional training and set homework exercises in mindfulness to be practiced on a daily basis over the four week period of the BIM intervention.

These components are based on the mindfulness practices from the 8-week MBSR program, which will be condensed for this purpose into a four week intervention:
a) Week 1: 40 min Body Scan Exercise and 10 min mindful eating activity
b) Week 2: 15-20 min Sitting meditation, mindfulness in daily activities instructions
c) Week 3: 20-30 min Sitting meditation, mindfulness in daily activities, 10 min walking meditation
d) Week 4: 30-40 min Sitting meditation, walking meditation, and mindfulness in daily activities.

The homework exercises in mindfulness will consist of a daily 20-30 min sitting or walking meditat

Primary Outcome(s)

Daily Fruit and vegetable consumption as assessed by a daily food diary indicating daily servings of fruit and vegetables consumed, measured in serving size.[4 weeks]

Secondary Outcome(s)

Levels of Mindfulness assessed by the Mindfulness Attention Awareness Scale (MAAS), a 15-item self-report scale designed to assess level of mindfulness, developed by Brown and Ryan (2003).[4 weeks]

Trait Self-control assessed by the Self-Control Scale (SCS), a 36-item self-report scale designed to assess trait self-control, developed by Tangney, Baumeister and Boone (2004).[4 weeks]

Secondary ID(s)

None

Source(s) of Monetary Support

Curtin University

Ethics review

Status: Not approved
Approval date:
Contact:

Curtin University Human Research Ethics Committee