Healthy Diet, Weight Management
Conditions
Keywords
Body Composition Assessment, Smart-phone Based Counselling, Weight Management, Health Eating Behavior, Middle-aged Hong Kong Chinese
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.
Interventions
BEHAVIORALBody composition assessment and smart-phone based counselling
As for the body composition assessment, body fat and muscle thickness, body fat percentage and distribution will be measured and a brief face-to-face counseling soon after the measurement will be implemented to the participants. Body assessment were measured by the InBody 270 (Biospace, Seoul, Korea) device, which provides a convenient way of accurate body fat measurement comparable with those obtained using air displacement plethysmography (ADP) (about 90% precision). As for the Whatsapp-based counselling and communication session, qualitative dietary counselling will be offered every two weeks through the Whatsapp. One session contains 15 minutes, including the topics like making a balanced diet (55 % glucose, 30 % lipids and 15 % proteins), diversifying food intake, dietary advices and recommendations in healthy eating behaviors (e.g., eat slowly, eat at a regular time, avoid to skip a meal, drink at least 1.5 L of water each day).
Sponsors
The Hong Kong Polytechnic University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Investigator, Outcomes Assessor)
Masking description
During the randomization session, the generated random numbers will be placed in opaque and tamperproof envelopes and sealed. Another independent person (other than statistician) will open all envelopes for eligible participants and responsible for arranging participants to undertake their corresponding treatments. Participants, investigators, and statistician will be concealed about the random allocation until each participant has been registered and the assignments have been made. The research assistant who will perform the outcome measures and the statistician are blinded to treatment group assignment.
Intervention model description
The intervention group will receive a convenient body composition measurement and 6-month smart-phone based individualized counselling. Through close collaborations with the experts in nutrition, we can effectively disseminate the knowledge of weight management and control and healthy diet to the middle-aged population. No specific intervention will be given to the control group except the common anthropometric and body composition measurement.
Eligibility
Sex/Gender
ALL
Age
45 Years to 65 Years
Healthy volunteers
Yes
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| 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 |
| Hip circumference | From baseline to 6 months after randomization | Hip 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. |
| Diastolic blood pressure | From baseline to 6 months after randomization | Diastolic blood pressure in mmHg |
| 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 %. |
| 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. |
| Systolic blood pressure | From baseline to 6 months after randomization | Systolic blood pressure in mmHg |
| Weight | From baseline to 6 months after randomization | Weight in kg. |
Countries
Hong Kong
Outcome results
None listed