Impact of Dinner Timing on Human Behaviours and Health
- Conditions
- Delayed Dinner Intervention
- Registration Number
- NCT07109583
- Lead Sponsor
- National Taiwan Normal University
- Brief Summary
The aim of this project is to investigate the impact of dinner timing on eating behaviors, physical activity and metabolic healthy in healthy adults
- Detailed Description
In the early dinner trial, participants will be required to eat dinner between 17:30 and 19:00 for a week. In the delayed dinner trial, participants will be required to eat dinner between 20:30 and 22:00 for a week. During the intervention, energy intake (3 days of weekday and 1 day of weekend), physical activity (7 days), glucose concentrations (7 days) and sleep (7 days) will be monitored continuously for both early and delayed dinner.
After intervention, body composition, cognition, food preference, metabolic health and resting metabolic rate will be measured.
Recruitment & Eligibility
- Status
- NOT_YET_RECRUITING
- Sex
- All
- Target Recruitment
- 20
- No regular exerciser in the last 3 months.
- BMI between 18.5-27 kg/m².
- Regular habit of eating three meals per day, with dinner consumed between 17:00 and 20:00.
- No intentional weight change (>3%) in the past 3 months.
- No special dietary practices (e.g., intermittent fasting).
- Regular sleep (22:00-01:00), at least 6.5 hours per night.
- Non-smoker and non-alcoholic.
- Willing to maintain stable lifestyle and comply with protocol.
- Pregnancy, preparing for pregnancy or menopause.
- Personal history of/existing diabetes, cardiovascular disease or metabolic diseases.
- Diagnosed sleep disorders.
- Taking medications influencing glucose metabolism.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Primary Outcome Measures
Name Time Method Glucose responses During 7 days of early dinner and 7 days of delayed dinner intervention Changes in blood glucose responses between early and delayed dinner intervention
Eating behaviour During early dinner and delayed dinner intervention (3 days of weekday and 1 day of weekend) Meal choice (i.e., energy intake in kcal) between early and delayed dinner intervention
- Secondary Outcome Measures
Name Time Method Sleep duration During 7 days of early dinner and 7 days of delayed dinner intervention Changes in sleep duration between early and delayed dinner intervention using MotionWatch
Sleep quality During 7 days of early dinner and 7 days of delayed dinner intervention Changes in sleep quality (efficiency, %) between early and delayed dinner intervention using MotionWatch
Physical activity level During 7 days of early dinner and 7 days of delayed dinner intervention Changes in physical activity level (minutes) between early and delayed dinner intervention
Physical activity intensity During 7 days of early dinner and 7 days of delayed dinner intervention Changes in physical activity intensity (%) between early and delayed dinner intervention using wearable product
Cognitive performance Before and after early and delayed dinner intervention Changes in computerized cognitive performance (accuracy in %) after early and delayed dinner intervention
Food preference tests Before and after early and delayed dinner intervention Changes in food preference after early and delayed dinner intervention
Resting resting metabolic rate Before and after early and delayed dinner intervention Changes in resting metabolic rate (kcal) after early and delayed dinner intervention
Body composition Before and after early and delayed dinner intervention Changes in body composition (fat mass in kg and percentage) after early and delayed dinner intervention using InBody
Blood pressure Before and after early and delayed dinner intervention Changes in blood pressure (diastolic and systolic blood pressure in mmHg) after early and delayed dinner intervention
Pulse wave velocity Before and after early and delayed dinner intervention Changes in pulse wave velocity (meter per second) after early and delayed dinner intervention