Body Composition, Nutrition, Obesity Prevention, Wellness Program, Workplace Interventions
Conditions
Keywords
worksite wellness program, obesity prevention, personalized physical activity, personalized nutrition, employee health
Brief summary
This study aims to evaluate the effectiveness of a worksite-based nutrition and wellness program in improving body composition, metabolic profile, and physical fitness among university employees who are overweight or obese. The intervention includes personalized and structured physical activity (brisk walking), nutritional education, and self-monitoring using mobile applications. Participants will be assessed at baseline, after 6 weeks and 12 weeks of intervention to determine changes in fat mass, muscle mass, waist circumference, and related health indicators. This program is designed to promote healthier lifestyle habits and prevent non-communicable diseases in the workplace.
Detailed description
This study is cluster randomized controlled trial conducted at Universitas Brawijaya to assess the effectiveness of a comprehensive workplace-based wellness intervention. The intervention comprises three key components: (1) structured physical activity is brisk walking with 150 minutes minimum for target per week; (2) personalized nutrition education delivered through interactive counseling; and (3) daily self-monitoring using a mobile application. Participants include university employees categorized as overweight or obese, who work in sedentary office jobs for more than 5 hours per day. Subjects will be assessed at three time points-baseline, after 6 weeks, and after 12 weeks-to measure changes in body composition (e.g., body mass index, body fat percentage, subcutaneous fat, skeletal mass, and waist circumference), metabolic profile (e.g., fasting blood glucose and cholesterol), and physical fitness parameters. The study aims to provide evidence on the impact of structured, low-cost wellness programs in reducing obesity-related health risks among adult employees in institutional settings. Ethical approval has been obtained from the Faculty of health, Universitas Brawijaya. The results are expected to support future implementation of health promotion policies in the workplace.
Interventions
BEHAVIORALWorksite Nutrition and Wellness Program
A structured behavioral intervention combining personalized physical activity and structured physical activity (Zumba classes), personalized nutrition counseling, and mobile app-based self-monitoring.
BEHAVIORALStandard education
General educational materials on healthy eating and physical activity based on the Ministry of Health guidelines. No tailored or active intervention provided.
Sponsors
University of Brawijaya
Universiti Putra Malaysia
Universiti Teknologi MARA (UiTM) Sungai Buloh Campus, Malaysia
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)
Masking description
Participants were blinded to group assignment to reduce bias in self-reported outcomes and compliance. Investigators and outcome assessors were not blinded due to the nature of the intervention
Intervention model description
Participants will be assigned to different groups based on faculty divisions using a cluster allocation model. Each group will receive either a structured wellness program or usual care.
Eligibility
Sex/Gender
ALL
Age
20 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* Employees aged 20-40 years * BMI ≥ 23 kg/m² * Body fat percentage ≥ 25% as measured by body composition analysis * Employed in white-collar occupations with predominantly sedentary work activities, defined as sitting for ≥ 5 hours per day, based on results from the Global Physical Activity Questionnaire (GPAQ). * Not engaging in regular vigorous physical activity, defined as participating in such activity less than 3 times per week, according to GPAQ results. * Not having a medical condition that could inhibit participation in the intervention. * Be willing to attend the program for a full 12 weeks.
Exclusion criteria
* A history of severe chronic disease, including type 1 diabetes, severe coronary heart disease, or kidney failure. * Be enrolled in other weight loss programs that may affect the results of the study. * Regular engagement in vigorous-intensity exercise prior to the start of the intervention program. * Not classified as a white-collar sedentary worker based on the Global Physical Activity Questionnaire (GPAQ) assessment.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Body Mass Index (BMI) | Baseline, Week 6, and Week 12 | Change in BMI measured using standard anthropometric protocol |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in Hand Grip Strength | Baseline, Week 6, and Week 12 | Measured using a digital dynamometer (dominant hand). |
| Body Fat Percentage | At Baseline, Week 6, and Week 12 | % Body fat in percentage measured via bioelectrical impedance analysis (BIA). |
| Skeletal mass | Baseline, week 6, Week 12 | Skeletal mass in percentage using BIA. |
| Change in VO₂ Max | Baseline, Week 6, and Week 12 | Estimated VO₂ Max via submaximal aerobic capacity test (e.g., Rockport or Queens step test). |
| Change in Fasting Blood Glucose | Baseline and Week 12 | Measured using capillary blood sample with a point-of-care glucometer (EasyTouch®) after ≥8 hours fasting. |
| Change in Waist Circumference | Baseline, Week 6, Week 12 | Waist measured in centimeters at midpoint between lowest rib and iliac crest. |
| Change in Total Blood Cholesterol | Baseline and Week 12 | Total cholesterol measured using capillary blood with a point-of-care cholesterol meter (EasyTouch®). |
Countries
Indonesia
Contacts
PRINCIPAL_INVESTIGATORIrka Dwi Fatmawati, S.Tr. Gz.
University of Brawijaya
Outcome results
None listed