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Motivational Interviewing for Overweight and Obese Adults at Healthy Life Centers

ConditionsOverweightObesity
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorSakarya University

About this trial

Overweight and obesity are major public health problems associated with increased morbidity and mortality. Motivational interviewing is a patient-centered counseling approach that may improve lifestyle behaviors and weight management. This randomized controlled trial aims to evaluate the effect of motivational interviewing on anthropometric measurements, eHealth literacy, and healthy eating attitudes among overweight and obese adults attending Healthy Life Centers in Sakarya, Türkiye. Participants will be randomly assigned to either a motivational interviewing intervention group or a routine nutrition counseling control group. Outcomes will be assessed at baseline and after the intervention.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Adults aged 18 years and older.

Body mass index (BMI) ≥25 kg/m² (overweight or obese).

Registered at one of the participating Healthy Life Centers in Sakarya Province.

Able to communicate in Turkish.

Disqualifiers

Pregnancy or breastfeeding.

Severe psychiatric disorders or cognitive impairment affecting participation.

Serious medical conditions preventing participation in lifestyle counseling.

Currently participating in another behavioral or weight management intervention.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Motivational Interviewing

    Behavioral

    Participants will receive four structured motivational interviewing sessions in addition to routine nutrition counseling. The first and fourth sessions will be delivered face-to-face, while the second and third sessions will be conducted by telephone or online. The intervention is based on motivational interviewing principles and aims to improve healthy eating behaviors, eHealth literacy, and anthropometric outcomes among overweight and obese adults.

  • Routine Nutrition Counseling

    Behavioral

    Participants will receive routine nutrition counseling provided by Healthy Life Centers according to standard clinical practice without motivational interviewing.

Treatment groups

54 Participants
are divided into 2 treatment groups
Group A: Experimental GroupExperimental treatment 2 interventions
Group B: Control GroupActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Change in Body Weight

Body weight (kg) will be measured at baseline and after completion of the 12-week intervention using standardized anthropometric procedures. The primary outcome is the change in body weight from baseline to post-intervention.

Time frame
Baseline and 12 weeks

Secondary outcomes

1

Change in Body Mass Index (BMI)

Body mass index will be calculated as weight in kilograms divided by height in meters squared.

Time frame
Baseline and 12 weeks
2

Change in Waist Circumference

Waist circumference will be measured using standardized anthropometric techniques.

Time frame
Baseline and 12 weeks
3

Change in Waist-to-Hip Ratio

Waist-to-hip ratio will be calculated from waist and hip circumference measurements.

Time frame
Baseline and 12 weeks
4

Change in eHealth Literacy

eHealth literacy will be assessed using the Turkish version of the eHealth Literacy Scale (eHEALS).

Time frame
Baseline and 12 weeks

Other outcomes

Sponsors and contacts

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Sakarya University

Lead sponsor

Sakarya Provincial Health Directorate

Collaborator

Source ClinicalTrials.gov

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