The Effect of Circadian Timing Program on Obesity Management and Sleep Quality

Kocaeli University

Status: Completed

Conditions: Obesity

Treatments: Behavioral: Sleep Hygiene Training; Behavioral: Circadian Timing Program

Study type: Interventional

Funder types: Other

Identifiers

NCT04665336

KOU

Details and patient eligibility

About

This study, it was aimed to examine the effect of circadian timing program created for obese individuals with evening chronotype on obesity management and sleep quality.

Full description

The importance of chronotype, which reflects individual preferences in sleep timing and other behaviors, for obesity is mostly unknown. Morning types are more successful in long-term weight control than evening type chronotypes. Those with a sleep preference in the evening and a long sleep time have a higher rate of being overweight / obese than those with a morning preference and sufficient sleep time. Evening-type circadian preferences are indirectly related to food addiction. Individuals with the evening chronotype tend to have higher BMI and unhealthy eating habits.

Although a direct link between chronotype and obesity has not yet been demonstrated, based on the negative health consequences in evening chronotypes; In this study, it is assumed that success in obesity management will increase with well-timed circadian / sleep cycles, adequate sleep time and quality sleep in obese individuals with evening chronotype.

Therefore, in this study, it was aimed to examine the effect of circadian timing program created for obese individuals with evening chronotype on obesity management and sleep quality.

This study will be conducted in an experimental design, in a randomized controlled manner, in accordance with its purpose. The universe of the study will be obese individuals followed in Kocaeli University Hospital Obesity Outpatient Clinic. As a result of the power analysis performed to determine the sample size, the number of individuals in each group was determined as n = 18. The sample of the study will be 36 individuals in total. Participants will be selected to the intervention and control groups by simple randomization method.

Enrollment: 38 patients

Sex: All

Ages: 18 to 64 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Being followed in Kocaeli University Hospital Obesity Outpatient Clinic
• Being an obese adult (BMI ≥ 30.0 kg / m²)
• Being in the age group of 18 and over
• Having the evening chronotype (Individuals with a late sleep period)
• Having a calorie-based diet according to body mass index and adapting to his diet
• To know how to read and write
• Not to have sensory losses such as sight and hearing
• Not being physically, cognitively or mentally obstructed to participate in the research
• To be open to communication and cooperation
• To have and use internet access
• Having a smart phone

Exclusion criteria

• Insomnia, regular sleep, shift work
• Traveling in time zones in the last 4 weeks
• Having an eating or psychiatric disorder
• Alcohol addiction
• Nursing mothers who are pregnant or lactating (giving birth in the past two years)
• Do not use antiobesity medication
• New diagnosis of hyperlipidemia and diabetes and drug initiation (in dose adjustment for less than 3 months)
• Heavy exercise or a sedentary lifestyle
• Being on insulin therapy
• Having a risk of hypoglycemia
• Having Chronic Obstructive Pulmonary Disease, Sleep Apnea, Celiac, Severe Anemia, disease / illnesses

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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38 participants in 2 patient groups

Intervention Group Lifestyle counseling

Experimental group

Description:

Obese individuals with evening chronotype will be trained on sleep hygiene in order to create behavioral changes in line with circadian rhythms and an intervention program called "Circadian Timing Program" which was created by the researcher in line with the relevant literature will be implemented for 12 weeks. This program includes sleep hygiene recommendations and regulation of daylight exposure, sleep, meal, caffeine intake and exercise times. To determine participants' sleep times they will be asked to keep a sleep diary and sleep records will be taken with the smart bracelet. Participants will be given a password to access the research website. The website of the study will be used for the training, control, motivation and communication of the Participants.

Treatment:

Behavioral: Circadian Timing Program

Behavioral: Sleep Hygiene Training

Control group

No Intervention group

Description:

Participants will be asked to follow their normal daily lifestyle, maintain normal sleep and eating habits and no further instructions or suggestions will be provided during the study.