NCT04116944

Brief Summary

This protocol details the full methods of two parallel, randomized controlled trials of an eight-week resistance exercise training intervention compared to a wait-list control condition among young adults with and without analogue-Generalized Anxiety Disorder.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
95

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2018

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 18, 2018

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 3, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 3, 2019

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

October 3, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 7, 2019

Completed
Last Updated

October 7, 2019

Status Verified

October 1, 2019

Enrollment Period

1.3 years

First QC Date

October 3, 2019

Last Update Submit

October 3, 2019

Conditions

Keywords

anxiety

Outcome Measures

Primary Outcomes (8)

  • Analogue-Generalized Anxiety Disorder Status

    The Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001, Arch of Gen Psychiatr)

    Baseline

  • Analogue-Generalized Anxiety Disorder Status

    The Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001, Arch of Gen Psychiatr)

    week1

  • Analogue-Generalized Anxiety Disorder Status

    The Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001, Arch of Gen Psychiatr)

    week 4

  • Analogue-Generalized Anxiety Disorder Status

    The Psychiatric Diagnostic Screening Questionnaire Generalized Anxiety Disorder subscale score of 6 or greater (Zimmerman \& Mattia, 2001, Arch of Gen Psychiatr)

    week 8

  • Analogue-Generalized Anxiety Disorder Status

    The Penn State Worry Questionnaire score of 45 or greater (Meyer et al., 1990, Behav Res and Ther)

    Baseline

  • Analogue-Generalized Anxiety Disorder Status

    The Penn State Worry Questionnaire score of 45 or greater (Meyer et al., 1990, Behav Res and Ther)

    week1

  • Analogue-Generalized Anxiety Disorder Status

    The Penn State Worry Questionnaire score of 45 or greater (Meyer et al., 1990, Behav Res and Ther)

    week 4

  • Analogue-Generalized Anxiety Disorder Status

    The Penn State Worry Questionnaire score of 45 or greater (Meyer et al., 1990, Behav Res and Ther)

    week 8

Secondary Outcomes (69)

  • Anxiety Symptoms

    Baseline

  • Anxiety Symptoms

    week 1

  • Anxiety Symptoms

    week 2

  • Anxiety Symptoms

    week 3

  • Anxiety Symptoms

    week 4

  • +64 more secondary outcomes

Study Arms (4)

Analogue-Generalized Anxiety Disorder Resistance Training

EXPERIMENTAL

Resistance exercise training among young adults with analogue-Generalized Anxiety Disorder

Behavioral: Resistance exercise training

Analogue-Generalized Anxiety Disorder Wait-List

OTHER

8-week wait-list control condition among young adults with analogue-Generalized Anxiety Disorder

Other: Wait-list

Non-Analogue-Generalized Anxiety Disorder Resistance Training

EXPERIMENTAL

Resistance exercise training among young adults without analogue-Generalized Anxiety Disorder

Behavioral: Resistance exercise training

Non-Analogue-Generalized Anxiety Disorder Wait-List

OTHER

8-week wait-list control condition among young adults with analogue-Generalized Anxiety Disorder

Other: Wait-list

Interventions

The ecologically-valid resistance exercise training was designed according to World Health Organization and American College of Sports Medicine guidelines. The eight-week, twice-weekly intervention was designed to be performed at a moderate intensity. The resistance of each exercise was such that when participants could successfully complete 2 sets of 12 repetitions at a certain load, the resistance was increased incrementally up to 5% for the following session. Exercise sessions were scheduled with at least one day of rest between sessions. The eight exercises included the barbell squat, barbell bench press, hexagon bar deadlift, dumbbell shoulder lateral raise, barbell bent over rows, dumbbell lunges, dumbbell curls, and abdominal crunches.

Also known as: weight-lifting, strength training
Analogue-Generalized Anxiety Disorder Resistance TrainingNon-Analogue-Generalized Anxiety Disorder Resistance Training

Participants randomized to the delayed-start wait-list condition completed questionnaires once-weekly. The investigator sent a weekly email to the participant providing links to the questionnaires. Participants that completed the eight-week wait-list condition were offered the eight weeks of RET either immediately upon completion, or later at a time of their convenience while the trial was ongoing. Each participant randomized to the eight-week wait-list also completed two 30-minute bouts of seated quiet rest in an empty room at weeks one and eight.

Analogue-Generalized Anxiety Disorder Wait-ListNon-Analogue-Generalized Anxiety Disorder Wait-List

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Department of Physical Education and Sport Sciences Building

Limerick, Ireland

Location

Related Publications (3)

  • O'Sullivan D, Gordon BR, Lyons M, Meyer JD, Herring MP. Effects of Resistance Exercise on Depressed Mood State: A Randomized Controlled Trial. Med Sci Sports Exerc. 2025 Nov 1;57(11):2496-2502. doi: 10.1249/MSS.0000000000003769. Epub 2025 May 29.

  • Gordon BR, McDowell CP, Lyons M, Herring MP. The effects of acute resistance exercise among young adults: A randomized controlled trial. J Affect Disord. 2022 Feb 15;299:102-107. doi: 10.1016/j.jad.2021.11.049. Epub 2021 Nov 18.

  • Gordon BR, McDowell CP, Lyons M, Herring MP. Resistance exercise training for anxiety and worry symptoms among young adults: a randomized controlled trial. Sci Rep. 2020 Oct 16;10(1):17548. doi: 10.1038/s41598-020-74608-6.

MeSH Terms

Conditions

Anxiety Disorders

Interventions

Resistance TrainingWaiting Lists

Condition Hierarchy (Ancestors)

Mental Disorders

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesPhysical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaAppointments and SchedulesOrganization and AdministrationHealth Services Administration

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 participant allocation, and the analyses were performed blinded to group. Participants' individual identification numbers assigned at baseline were used during the course of the trial. Following full data extraction from SurveyMonkey.com, identifying information were removed, such that no participant could be identified in the working dataset through one, or a combination of different variables.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Two parallel, randomized controlled trials of an eight-week resistance exercise training intervention compared to a wait-list control condition among young adults with and without analogue-Generalized Anxiety Disorder
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 3, 2019

First Posted

October 7, 2019

Study Start

January 18, 2018

Primary Completion

May 3, 2019

Study Completion

May 3, 2019

Last Updated

October 7, 2019

Record last verified: 2019-10

Data Sharing

IPD Sharing
Will share

De-identified individual participant data for all primary and secondary outcomes measures will be made available.

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.

Locations