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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06972121




Registration number
NCT06972121
Ethics application status
Date submitted
14/04/2025
Date registered
14/05/2025
Date last updated
28/05/2025

Titles & IDs
Public title
Digital Mindset Intervention for Half Marathon Performance
Scientific title
The Efficacy of a Digital Mindset Intervention to Improve Race Performance, Training Outcomes, and Recovery in Recreational Half Marathon Runners: A Randomized Controlled Trial
Secondary ID [1] 0 0
UAHPEC29030
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Healthy 0 0
Exercise 0 0
Psychological Intervention 0 0
Condition category
Condition code

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
BEHAVIORAL - Mindset Intervention
BEHAVIORAL - Marathon Performance Training

Experimental: Mindset Intervention - Participants in this arm are assigned to receive a digital mindset intervention designed to improve training experiences by targeting core beliefs about mindsets, and exercise symptoms such as discomfort and fatigue. This arm allows testing of the effects of mindset-focused content compared to standard training and control. Participants receive 4 brief digital modules over 9 weeks via app or email. The modules include mindset theory, reframing of physical symptoms, and race-day mental preparation.

Active comparator: Marathon Performance Training - Participants in this arm are assigned to receive standard half-marathon performance training content. This arm serves as an attentional control, allowing comparison with the mindset intervention arm. Participants receive 4 brief digital modules over 9 weeks via app or email. The modules are based on publicly available running guidance and do not include any mindset-related material.

No intervention: Control - Participants in the control group will not receive any digital training or mindset content during the study period. They will continue their usual preparation for the half-marathon without additional input from the research team. This group serves as a no-intervention comparator to assess the added effects of both the mindset intervention and the marathon performance training content.


BEHAVIORAL: Mindset Intervention
The mindset intervention includes 4 brief digital modules over 9 weeks (once every 3 weeks) via app or email, prior to the half-marathon race. The content introduces meta-mindsets (beliefs about how mindsets shape experiences and outcomes) and reframes non-severe physical symptoms (e.g., muscle soreness, fatigue) as signs of physiological adaptation. Modules cover: (1) what mindsets are and how they affect performance; (2) how to interpret normal training symptoms as positive signals; (3) how to maintain adaptive mindsets during peak training; and (4) race-day mindset preparation. Each module includes brief text, visuals, and reflection questions and takes approximately five minutes to complete.

BEHAVIORAL: Marathon Performance Training
The marathon performance training intervention includes 4 brief digital modules over 9 weeks (once every 3 weeks) via app or email, prior to the half-marathon race. Content is based on publicly available half-marathon training guidance and excludes any mindset-related material. Modules cover: (1) setting race goals and structuring training plans; (2) training tips and best practices (e.g., pacing, injury prevention); (3) navigating peak training periods (e.g., distance increases, rest and recovery); and (4) practical race-day preparation strategies (e.g., pacing, fueling, warm-up routines). Each module includes concise text, visuals, and actionable tips designed to take approximately five minutes to complete.
Intervention code [1] 0 0
BEHAVIORAL
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Official Race Times
Timepoint [1] 0 0
At half-marathon race completion (approximately 9 weeks after intervention start)
Primary outcome [2] 0 0
Race Completion
Timepoint [2] 0 0
At half-marathon race completion (approximately 9 weeks after intervention start)
Secondary outcome [1] 0 0
Race Recovery
Timepoint [1] 0 0
1-week post-race (self-reported number of days to recover since race day)
Secondary outcome [2] 0 0
Peak Training Week Run Frequency
Timepoint [2] 0 0
1-week post-race (reflecting participant-identified peak training week, usually 3-4 weeks before race day)
Secondary outcome [3] 0 0
Peak Training Week - Total Distance Run
Timepoint [3] 0 0
1-week post-race (reflecting participant-identified peak training week, usually 3-4 weeks before race day)

Eligibility
Key inclusion criteria
* Be aged 18 years or older
* Be registered to run (not walk) in a 2025 half marathon in New Zealand
* Be running their 1st, 2nd, or 3rd half marathon
* Be able to complete the half-marathon without physical assistance or aids
* Be able to read and understand English
* Have regular access to email or an internet-connected device
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Have completed more than 2 half marathons in the past
* Are currently injured or unable to complete the race unassisted
* Are unable to complete online questionnaires independently
* Do not have access to a device capable of receiving digital content via app or email

Study design
Purpose of the study
Other
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Not applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
15/05/2025
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
1/09/2025
Actual
Sample size
Target
207
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
Recruitment outside Australia
Country [1] 0 0
New Zealand
State/province [1] 0 0
Auckland

Funding & Sponsors
Primary sponsor type
Other
Name
University of Auckland, New Zealand
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Keith Petrie, Professor
Address 0 0
University of Auckland, New Zealand
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Michelle Taylorson, Health Psychology Masters Stud
Address 0 0
Country 0 0
Phone 0 0
+64 21 230 8053
Fax 0 0
Email 0 0
[email protected]
Contact person for scientific queries

Data sharing statement


What supporting documents are/will be available?

No Supporting Document Provided


Results publications and other study-related documents

No documents have been uploaded by study researchers.

Results not provided in https://clinicaltrials.gov/study/NCT06972121