Body Composition Assessment and Smart-phone Based Counselling on Healthy Eating and Weight Management

Not Applicable

Completed

• Conditions: Weight Management; Healthy Diet

• Registration Number: NCT05400187
• Lead Sponsor: The Hong Kong Polytechnic University

Brief Summary

This study proposed an integrated multi-disciplinary approach including a professional and convenient body composition measurement and an immediate counselling after the measurement, followed by 6-month smart-phone based individualized counselling. We believe that this approach will promote healthy eating behaviors and weight management among middle-aged Chinese in Hong Kong.

Detailed Description

This is a two-arm, individual level, 6-month randomized controlled trial. The intervention group will receive convenient body composition measurement and 6-month smart-phone based individualized counselling. No specific intervention will be given to the control group except the common anthropometric and body composition measurement. A pretest-posttest evaluation and between-group comparison will be used to test whether the impact/success of the project has been achieved.

Study Timeline

• Study First Submitted: 2022-05-18
• Study First Submitted QC: 2022-05-26
• Study Start: 2022-06-01
• Study First Posted: 2022-06-01
• Primary Completion: 2022-12-31
• Study Completion: 2022-12-31
• Status Verified: 2025-04
• Last Update Submitted: 2025-04-06
• Last Update Posted: 2025-04-08

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 221

Inclusion Criteria

• Able to understand Cantonese and read Chinese;
• Self-reported vegetable and fruit consumption is less than 5 servings per day (one serving means 125 mL (½ cup) fresh, frozen or canned fruits or vegetables; or 250 mL (1 cup) raw leafy veggies or salad; or 125 mL (½ cup) 100% juice; or 1 fruit;
• Reachable by smart-phone and familiar with the use of smart-phone;
• Would not move from the local area during the study period.

Exclusion Criteria

• Self-reported history of cardiovascular and pulmonary diseases, neurological disorder, musculo-skeletal disorder, osteoarthritis, and eating disorder;
• Receiving medically prescribed diet or physical activity intervention;
• For women, currently pregnant;
• Have been taking any medications or long-term supplement such as herbs;
• Cannot provide written informed consent.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
The difference of the weight management belief	From baseline to 6 months after randomization	Four items from belief domain of Chinese weight management scales (WMS) was used to measure the participants' belief of self weight management . Each item is measured by 3- or 4-point Likert scale. The total score change from 4 to 15 with higher scores indicating better weight management belief.
The difference of the weight management knowledge	From baseline to 6 months after randomization	The knowledge of weight management was measured by 13 items from the general nutrition knowledge questionnaire (GNKQ). Each item carries one point for a correct answer and the maximum score is 13. A higher score shows better weight management knowledge.

Secondary Outcome Measures

Name	Time	Method
Weight	From baseline to 6 months after randomization	Weight in kg.
Body mass index (BMI)	From baseline to 6 months after randomization	BMI in kg/m\^2
Waist circumference	From baseline to 6 months after randomization	Waist in cm
Thigh circumference	From baseline to 6 months after randomization	Thigh in cm
The difference of health eating behavior	From baseline to 6 months after randomization	Respondents' food knowledge and behavior were obtained through the food behavior questionnaire (FBQ). The FBQ is a questionnaire with 18 questions querying respondents' behaviors and knowledge about various areas of food and diet-related health such as nutrition label reading behaviors, knowledge of diet/disease relationships and some meal consumption patterns.
Systolic blood pressure	From baseline to 6 months after randomization	Systolic blood pressure in mmHg
Diastolic blood pressure	From baseline to 6 months after randomization	Diastolic blood pressure in mmHg
Body fat mass	From baseline to 6 months after randomization	Body fat mass was measured by a professional body composition analyzer named InBody 270 in kg.
Hip circumference	From baseline to 6 months after randomization	Hip in cm
Body fat percentage	From baseline to 6 months after randomization	Body fat percentage was measured by a professional body composition analyzer named InBody 270 in %.

Trial Locations

Locations (1)

The Hong Kong Polytechnic University; 🇭🇰 Hung Hom, Hong Kong