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Lifestyle Coaching for Obese Firefighters (FireFit)

This study, called "FireFit," is looking at how well lifestyle coaching helps male firefighters who are obese. The coaching involves individual and group sessions with a dietitian, focusing on healthy living. Researchers want to see if this coaching, called "Lifestyle Coaching," can lead to changes in body mass index (BMI), body fat, and waist circumference over nine months, compared to just receiving general health instructions. You might be able to join if you are a male firefighter between 18 and 60 years old, have a BMI of 30 or higher, and live or work in Massachusetts, Rhode Island, or nearby areas. The study aims to enroll 50 participants to understand if this coaching can improve health for firefighters.

Study design
This is an interventional study planning to enroll 50 male firefighters. Participants will be randomly assigned to either receive lifestyle coaching or general health instructions.
What's involved
You would complete a baseline health assessment and then have individual coaching sessions at the start, one month, and every other month. All health and fitness measures will be repeated at 3, 6, and 9 months.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for nine months after starting the study interventions.

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NCT06890975

"F!reF!ghterF!t": Lifestyle Coaching Interventions for Obese Firefighters (FireFit)

Not Yet Recruiting
NAAges 18–60InterventionalTreatment
Cambridge Health Alliance
~50 participants
Updated 2026-02-23 on ClinicalTrials.gov
What's tested:Lifestyle Coaching

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Mean change in body mass index
Measured over From the start of the intervention to its conclusion at nine months.
+3 more outcomes measured

Conditions

Obesity and Obesity-related Medical Conditions

Explore related trials

Diabetes MellitusMetabolic SyndromeObesity

Where it's being run

1 sites across 1 states
Massachusetts1

Who to contact

Patricia Lenehan
[email protected]
617-665-1580
Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Male firefighters aged 18-60 years
Currently active as volunteer or career firefighters
Body mass index (BMI) ≥30 kg/m² based on self-reported height and weight
Express interest in participating in a clinical study aimed at improving body composition (weight loss), metabolic status, and quality of life
Residing and/or working in Massachusetts, Rhode Island, or Southern New Hampshire (Boston metro area)

Exclusion

Female sex\*
BMI \<30 kg/m² based on self-reported height and weight
Active psychosis
History or diagnosis (during the RCT) of any of the following:
Current or recent (within 6 months) use of testosterone treatment or anti-obesity/obesogenic medications
Unwillingness to adhere to potential intervention assignments
Because this is an exploratory study, the number of subjects is limited, and men make up roughly 85% of the US fire service, the current proposal is limited to men. In future studies, we will include women firefighters.

What this trial measures

  • Mean change in body mass indexFrom the start of the intervention to its conclusion at nine months.

    Body Mass Index (kg/m-squared)

  • Mean change in body fatFrom the start of the intervention to its conclusion at nine months.

    Body fat percentage as measured by bioelectrical impedance

  • Mean change in waist circumferenceFrom the start of the intervention to its conclusion at nine months.

    Waist circumference (cm)

  • Mean change in waist/hip ratioFrom the start of the intervention to its conclusion at nine months.

    Waist/hip ratio (waist circumference (cm) divided by hip circumference (cm)