The Resistance Exercise Training for Worry Trial: Replication and Expansion
RETRAIN REP-EX
Acute and Chronic Effects of Guidelines-Based Resistance Exercise Training Compared to a Low Intensity SHAM Attention Control Among Young Adult Women With Analogue Generalized Anxiety Disorder: A Protocol for a Randomized Controlled Trial.
2 other identifiers
interventional
68
1 country
1
Brief Summary
This protocol details the full methods of a ten-week moderate-to-high intensity, guidelines-based resistance exercise training intervention compared to a low intensity sham attention control among young adult women with analogue Generalized Anxiety Disorder.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2023
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 9, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 5, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
January 5, 2025
CompletedFirst Submitted
Initial submission to the registry
January 20, 2025
CompletedFirst Posted
Study publicly available on registry
February 3, 2025
CompletedFebruary 3, 2025
January 1, 2025
1.2 years
January 20, 2025
January 27, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (21)
Analogue Generalized Anxiety Disorder Status
Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001)
Baseline
Analogue Generalized Anxiety Disorder Status
Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001)
Week 1
Analogue Generalized Anxiety Disorder Status
Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001)
Week 4
Analogue Generalized Anxiety Disorder Status
Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001)
Week 8
Analogue Generalized Anxiety Disorder Status
Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001)
Week 12
Analogue Generalized Anxiety Disorder Status
Penn State Worry Questionnaire of 45 or greater (Meyer et al., 1990)
Baseline
Analogue Generalized Anxiety Disorder Status
Penn State Worry Questionnaire of 45 or greater (Meyer et al., 1990)
Week 1
Analogue Generalized Anxiety Disorder Status
Penn State Worry Questionnaire of 45 or greater (Meyer et al., 1990)
Week 4
Analogue Generalized Anxiety Disorder Status
Penn State Worry Questionnaire of 45 or greater (Meyer et al., 1990)
Week 8
Analogue Generalized Anxiety Disorder Status
Penn State Worry Questionnaire of 45 or greater (Meyer et al., 1990)
Week 12
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Baseline
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Pre-week 1
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 1
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 2
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 3
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 4
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 5
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 6
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 7
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 8
Worry Symptoms
16-item Penn State Worry Questionnaire (Meyer et al., 1990)
Week 12
Secondary Outcomes (109)
Anxiety Symptoms
Baseline
Anxiety Symptoms
Pre-week 1
Anxiety Symptoms
Week 1
Anxiety Symptoms
Week 2
Anxiety Symptoms
Week 3
- +104 more secondary outcomes
Study Arms (2)
Moderate-to-High Intensity Resistance Exercise Training
EXPERIMENTALModerate-to-high intensity, guidelines-based resistance exercise training completed at 70-80% of the estimated one-repetition maximum
Low Intensity SHAM Resistance Exercise Training Attention Control
SHAM COMPARATORLow intensity SHAM Resistance Exercise Training completed at 20% of the estimated one-repetition maximum
Interventions
Resistance exercise training was designed in accordance with World Health Organization and American College of Sports Medicine guidelines. The eight-week, twice-weekly intervention was designed such that moderate-to-high intensity participants could achieve two sets of 8-12 repetitions of the eight exercises before volitional fatigue, a deterioration in lifting form, or failure to complete a repetition, using loads of approximately 70-80% of their estimated one-repetition maximum. Completed in the following order, the exercises were: barbell back squat, barbell bench press, hexagon bar deadlift, barbell bent over row, dumbbell lunges, seated dumbbell lateral raises, weighted or unweighted abdominal crunches, and seated dumbbell bicep curls. There was one minute of rest between each set, and two minutes of rest between each exercise. If participants could complete two sets of 12 repetitions, load was increased gradually by approximately 5% in the following session.
The low intensity SHAM condition was matched all features of engagement with the moderate-to-high intensity intervention apart from load, and load progression. Low intensity SHAM participants completed the same program with loads of approximately 20% of their estimated one-repetition maximum. To maintain low intensity, repetitions completed on the main, heavier lifts (i.e., back squat, bench press, deadlift, bent over row) were increased from 10 in one session to 12 in the next; load was then increased by approximately 10% in the following session, and 10 reps were performed again. On the remaining lighter, assistance lifts, eight repetitions were performed per set, then one repetition was added to both sets in each session, and load was increased by the smallest increment possible when two sets of 12 repetitions were performed. Borg's 6-20 rating of perceived exertion scores were used to monitor intensity, such that if scores exceeded 11, load and reps were not progressed.
Eligibility Criteria
You may qualify if:
- Female
- Aged 18-40y
- Met criteria for analogue Generalized Anxiety Disorder
You may not qualify if:
- Medical contraindications to doing resistance exercise training
- Currently involved in formal resistance exercise training
- Currently pregnant or post-partum
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Limericklead
- Taighde Éireann - Research Irelandcollaborator
Study Sites (1)
University of Limerick
Limerick, Munster, V94 T9PX, Ireland
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Matthew P. Herring, PhD
University of Limerick
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- The principal investigator was blinded to group allocation and performed blinded outcome analyses. Blinding of the investigators who supervised the resistance exercise training sessions was not possible. Participants were not informed of whether they were randomized to an intervention or control group, or of the study hypothesis. At baseline, each participant received an identification number which remained the same throughout the trial. Information that could potentially identify any participant was removed from the working dataset after full data extraction from Qualtrics, such that participants could not be identified based on personal characteristics.
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 20, 2025
First Posted
February 3, 2025
Study Start
October 9, 2023
Primary Completion
January 5, 2025
Study Completion
January 5, 2025
Last Updated
February 3, 2025
Record last verified: 2025-01
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Primary outcome data will be made available for five years at six months following publication of primary outcome summary data. Secondary outcome data will be made available for five years at six months following publications of secondary outcome summary data.
- Access Criteria
- Proposals should be directed to matthew.herring@ul.ie. To gain access, data requestors will need to sign a data access agreement.
De-identified individual participant data for all primary and secondary outcomes measures will be made available.