Weight Outlooks by Restriction of Diet and Sleep

University of South Carolina36 enrolled

Overview

The purpose of this study is to examine whether chronic moderate sleep restriction effects the amount of body fat and lean mass loss, and calorie expenditure, in individuals who are participating in a dietary weight loss program.

Participants will be randomly assigned to an 8-week program of either restricted diet alone, or restricted diet with restricted sleep for 5 days a week. The total expected duration of participation is approximately 3 months.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Weight

Interventions

Calorie restriction onlyBEHAVIORAL

Participants randomly assigned to this group will be instructed to reduce their daily energy intake to 95% of their resting metabolic rate.

Sleep & calorie restrictionBEHAVIORAL

Participants randomly assigned to this group will be instructed to reduce their total time in bed by 90 minutes 5 days a week, in addition to restricting their dietary intake to approximately 95% of their resting metabolic rate.

Eligibility

Sex: ALLMin age: 35 YearsMax age: 55 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * age between 35-55 years, * BMI between 30-35 kg/meters squared, * total sleep time between 6.5-8 hours Exclusion Criteria: * work requiring changing schedule, * use of sleep aids or sleep medication

Locations (1)

University of South Carolina

Columbia, South Carolina, United States

Outcomes

Primary Outcomes

body composition measured via DXA scans

Body composition will be measured via DXA scans prior to intervention and post intervention to compare losses in lean body mass and fat mass.

Time frame: 4 months

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.