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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Enrollment
38
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.
Sleep hygiene training will be given by the researcher. There will also be sleep hygiene training sections on the website.
Kocaeli University
İzmit, Kocaeli, Turkey (Türkiye)
Change in Body Mass Index (BMI) from Baseline at 12 Week
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).
Time frame: Change between day 1 and week 12 of the study.
Change in waist and hip circumference from Baseline at 12 Week
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).
Time frame: Change between day 1 and week 12 of the study.
Change from Baseline in Sleep Quality on The Pittsburgh Sleep Quality Index (PUKI) at Week 12.
PUKI is a scale that can define the quality of sleep as "good or bad". Change = (Week 12 Measurement- Baseline Measurement).
Time frame: Baseline and Week 12
Change in Quality of Life from Baseline at 12 Week.
In the Impact of Weight on Quality of Life Instrument (IWQOL-Lite)
Time frame: Baseline and Week 12
Change in Sleepiness from Baseline at 12 Week.
In the Epworth Sleepiness Scale (ESS) the lowest score that can be obtained from the scale
Time frame: Baseline and Week 12
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.