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Feasibility of a Train-the-Trainer Delivered Exercise Intervention in Firefighters

NCT05287594 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 55

Last updated 2025-12-19

No results posted yet for this study

Summary

Purpose: To collect and report feasibility data for conducting a future cluster randomized trial to evaluate the efficacy of a TRAINER delivered integrated exercise program in career firefighters, and to determine intervention fidelity and preliminary effects of a TRAINER delivered integrated exercise program in career firefighters.

Participants: 52 career firefighters 18 - 60 years old (40 trainees, 6 trainers, 6 administrators).

Procedures (methods): Enrolled fire stations will be randomly assigned (3:2 allocation ratio) to a TRAINER or wait-list control (CON) group, stratified by city, using computer-generated random numbers. All enrolled firefighters will undergo a series of assessments at baseline (week 0) and post-testing (week 7) following the TRAINER delivered 6-week intervention.

Conditions

  • Firefighter
  • High Intensity Interval Training

Interventions

BEHAVIORAL

Integrated Exercise Program

Neuromuscular warm-up: Each participant will perform a series of dynamic stretches, core stability, balance, and medicine ball exercises. The dynamic stretches include 8 repetitions of 6 stretches targeting the hip and thigh musculature, followed by 3 core stability isometric exercises (curl-up, side bridge, and bird dog). Participants will then perform 2 sets (per leg) of hop-to-stabilization (with a reach) balance exercises, followed by 3 separate medicine ball exercises emphasizing explosive full-body movements. High Intensity Interval Training (HIIT): HIIT will include a series of high intensity exercise bouts on a stationary bike that includes a 1:1 work-to-rest ratio. Training intensity will be determined from the peak power output obtained during the baseline VO2 peak assessment and progressively increased by the number of bouts and intensity. The number of work bouts will increase from 5 to 8 bouts and the intensity will increase from 90 to 110% of peak power output.

Sponsors & Collaborators

  • National Institute for Occupational Safety and Health (NIOSH/CDC)

    collaborator FED

  • University of North Carolina, Chapel Hill

    lead OTHER

Principal Investigators

  • Eric Ryan, PhD · UNC Chapel Hill

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-04-01
Primary Completion
2025-09-26
Completion
2025-09-29

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05287594 on ClinicalTrials.gov