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

Part of paid clinical trials in Sommerville, Massachusetts.

Sponsor
Cambridge Health Alliance
Study ID
NCT06890975
Status
Not Yet Recruiting

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Conditions

  • Obesity and Obesity-related Medical Conditions

Eligibility Criteria

Sex
MALE
Age
18 Years - 60 Years
Healthy Volunteers
Not accepted

Interventions

  • Lifestyle Coaching — BEHAVIORAL
    The schedule for the individual and group coaching sessions is summarized below: * Individual Coaching: Six one-on-one online sessions with a trained dietician, starting with an initial 30-minute session at baseline, followed by sessions at one month and then every other month. * Group Coaching: 60-minute group online sessions with up to 15 participants per group. Group sessions schedule: there will be a total of 13 group sessions. They will meet once a week for the first 4 weeks, twice monthly for the next 8 weeks of follow-up, and then monthly for the remaining follow-up until the 13th session.

Study Details

Our goal is to explore the effectiveness of 9- month lifestyle medicine based coaching intervention (individual and group coaching) versus control (usual care/ written health instructions). The primary study outcomes will be mean changes in body composition metrics . Secondary outcomes will be the prevalence of metabolic abnormities, progression/regression of Metabolic Syndrome, push-up \& sit/stand capacity, self-reported physical activity, and quality of life/diet/sleep measures.

Key Dates

Start date
Apr 21, 2026
Status verified
Feb 2026
Primary completion
Oct 31, 2026
Completion
Dec 31, 2026

Study Design

Enrollment
50 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • No Intervention: Control/ General Written Health Instructions
    Participants will receive standard lifestyle recommendations, consisting of two pages of written information summarized from the American Heart Association's 'Healthy for Good' webpages for the general public. These will include guidance on healthy diets, physical activity, healthy sleep, stress reduction, and avoiding tobacco, excess alcohol, and other harmful substances.
  • Active Comparator: Individual & Group Lifestyle Medicine-based Coaching
    This group will receive personal and group coaching sessions based on the six pillars of lifestyle medicine: 1) a plant- predominant eating pattern (consistent with the AIH "Full Plate Living" program); 2) physical movement; 3) restorative sleep; 4) management of stress; 5) avoidance of risky substances; and 6) positive social connections. Target goals for the participants assigned to Lifestyle Coaching will include the following: improving diet quality together with moderate caloric restriction; engaging in more physical activity with a goal of 150 minutes or more per week of at least moderate intensity (e.g. brisk walking); getting 7-8 hours of sleep nightly when possible and using short naps when work or other conditions interfere with getting at least 7 hours of sleep; increasing resilience and using positive social/family connections to manage/decrease stress.

Primary Outcome Measure

Mean change in body mass index [ Time Frame: From the start of the intervention to its conclusion at nine months. ]

Locations (1)

FacilityCityStateZIPSite coordinators
Cambridge Health AllianceSommervilleMassachusetts02145
Patricia Lenehan
[email protected]
617-665-1580
Stefanos N Kales, MD (PRINCIPAL_INVESTIGATOR)

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By research site
Cambridge Health Alliance· Sommerville, MA

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