Comparison of Weight Management Programs Delivered in Large Versus Small Groups

The purpose of this study is to compare the 6- and 12-month weight changes associated with lifestyle interventions delivered in a large group or small groups of participants. It is hypothesized that participants receiving treatment in a small group will have greater weight loss than those assigned to a larger group.

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Key information

Conditions

Obesity Body Weight Body Weight Changes Nutrition Disorders Nutritional and Metabolic Diseases Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms Weight Loss

Age range

21 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Alabama at Birmingham, Birmingham, Alabama, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

at least 21 years-old
body mass index (BMI) between 30-45

Exclusion criteria

have lost >4.5 kg in past six months
have medical condition(s) likely to affect ability to participate in physical activity
planning to relocate from the area in next 12 months
unable or unwilling to attend weekly group sessions
unwilling to accept random assignment

Treatment and study plan

Lifestyle Intervention for Obesity

Behavioral

Primary outcomes

change in body weight from baseline to months 6 and 12

Time frame: baseline, month 6, month 12

Weight will be measured to the nearest 0.1 kg using calibrated digital scales at baseline, month 6, and month 12.

Secondary outcomes

treatment attendance

Time frame: 12 months

Participants attendance at each treatment group session was recorded.
treatment adherence

Time frame: 12 months

Participants' self-monitoring of food intake was collected to determine adherence to this component of treatment.

Sponsors and collaborators

Lead sponsor

University of Alabama at Birmingham

Other

Registry information

Important dates

Study start: 2010
Primary completion: 2011
Study completion: 2011
First posted: Mar 17, 2014
Registry last updated: Jan 11, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed