Validation of a Digital Visual Analogue Scale for Appetite Measurement

Study Overview
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Brief Summary
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The objective of the study is to validate a newly developed digital visual analog scales with a mobile app for measuring human appetite and compare it with a traditional paper-based visual analog scales for appetite measurement.

Official Title
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Use of a Digital Visual Analog Scale With Smart Phones for Appetite Measures in the Real World: A Validation Study

Conditions
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Healthy

Intervention / Treatment
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* Other: Breakfast meal


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy adults 18-70 years. Body mass index 20-29.9 kg/m² (based on self-reported weight and height). Understand the study procedures. Willing to maintain habitual diet, physical activity pattern, and body weight throughout the trial. Willing to follow study procedures on test days. Willing to abstain from strenuous exercise, consuming alcoholic drinks 24 hours before the test day. Willing to provide informed consent to participate in the study. Exclusion Criteria: Pregnant or lactating women, or women who are planning to become pregnant during the study Known food allergies, sensitivity, or intolerance to any food or food ingredients Participating in another clinical trial for food, investigational drug, nutritional supplement, or lifestyle modification Taking medications that affect appetite, metabolism, or blood pressure Presence of acute diseases or infection Presence or history of chronic diseases Diagnosed with eating disorders Restraint eaters Lost or gained 5 pounds or more in the past 3 months On a weight-loss diet, or undergoing intermittent fasting COVID-19 infection in the past 3 months.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Breakfast meal with 460 kcal<br> | Other: Breakfast meal<br>* A meal consisting of breakfast biscuits and water.<br>|
| Active Comparator: Breakfast meal with 230 kcal<br> | Other: Breakfast meal<br>* A meal consisting of breakfast biscuits and water.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Curve for Hunger 0-240 min | Area Under the Curve for Hunger 0-240 min | 0-240 min | 
| Area Under the Curve for Fullness 0-240 min | Area Under the Curve for Fullness 0-240 min | 0-240 min | 
| Area Under the Curve for Desire to Eat 0-240 min | Area Under the Curve for Desire to Eat 0-240 min | 0-240 min | 
| Area Under the Curve for Prospective Consumption 0-240 min | Area Under the Curve for Prospective Consumption 0-240 min | 0-240 min | 
| Area Under the Curve for Satiety 0-240 min | Area Under the Curve for Satiety 0-240 min | 0-240 min |