Obesity
Conditions
Keywords
obese, chronotype, eveningness, circadian rhythm, sleep quality
Brief summary
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.
Detailed 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.
Interventions
BEHAVIORALCircadian Timing Program
Sleep hygiene training will be provided to the participants. They will be asked to make lifestyle changes according to the Circadian Timing Program created by the researcher.
BEHAVIORALSleep Hygiene Training
Sleep hygiene training will be given by the researcher. There will also be sleep hygiene training sections on the website.
Sponsors
Sakarya University
Kocaeli University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)
Intervention model description
Randomized Controlled Trial
Eligibility
Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Body Mass Index (BMI) from Baseline at 12 Week | Change between day 1 and week 12 of the study. | Measurements will be made with body analysis device and height meter in the outpatient clinic. The Body-Mass Index is calculated by dividing the person's weight in kilograms by the square of the person's height in meters (kg / m²). Change = (Week 12 Measurement- Baseline Measurement). |
| Change in waist and hip circumference from Baseline at 12 Week | Change between day 1 and week 12 of the study. | Waist and hip circumference is measured with a tape measure, graduated in centimetres, . The waist-hip ratio is calculated as waist measurement divided by hip measurement W ÷ H. Change = (Week 12 Measurement- Baseline Measurement). |
| Change from Baseline in Sleep Quality on The Pittsburgh Sleep Quality Index (PUKI) at Week 12. | Baseline and Week 12 | PUKI is a scale that can define the quality of sleep as good or bad. Change = (Week 12 Measurement- Baseline Measurement). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in Quality of Life from Baseline at 12 Week. | Baseline and Week 12 | In the Impact of Weight on Quality of Life Instrument (IWQOL-Lite) |
| Change in Sleepiness from Baseline at 12 Week. | Baseline and Week 12 | In the Epworth Sleepiness Scale (ESS) the lowest score that can be obtained from the scale |
Countries
Turkey (Türkiye)
Outcome results
None listed