Clinical trial NCT04391270: A Blended Intervention to Promote Physical Activity, Health and Work Productivity Among Office Employees
Official title: A Blended Intervention to Promote Physical Activity, Health and Work Productivity Among Office Employees Using Intervention Mapping: A Study Protocol for a Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Physically Well But Worried
Keywords: physical activity
health promotion
Lead sponsor: Hong Kong Baptist University
Sponsor class: OTHER
First posted: 2020-05-18
Enrollment: 141
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: The primary objective of this study is to examine between-group differences in changes of objectively measured MVPA levels (min/week) among a randomly selected sample of office employees who are physically inactive in Hong Kong.

Detailed description: Regular participation in moderate-to-vigorous physical activity (MVPA) is related to decreased risk of morbidity and mortality. Among working populations, lack of MVPA may also be a risk factor for absenteeism and presenteeism. Both traditional workplace-based and web-based interventions have been suggested as being effective in promoting participation MVPA, health-related outcomes, and work-related productivity. However, several challenges limit their application in real world contexts. A 'blended' intervention approach combining the two intervention strategies is proposed to overcome these limitations. The proposed intervention aims to utilize the blended approach to increase participation in MVPA, health-related outcomes, and work productivity among inactive workers.

Methods: The study will comprise of a three group cluster randomized controlled trial (cluster-RCT), comprising a three-month actual intervention and a nine-month behavioral follow-up period. The three groups will be: a web-based intervention group, a blended intervention group combining the web-based components with face-to-face workshops, and a control group. Physically inactive office employees (N = 141) from will be recruited and randomly assigned to the three groups by cluster randomization. The intervention mapping (IM) framework will be used for selecting and applying effective health behavioural theories and behavioural change techniques (BCTs) to the development, implementation and assessment of the intervention, which will be personally tailored. The primary outcome variable will be objectively measured MVPA using an accelerometer. Secondary outcomes will consist of indices of health including adiposity, blood pressure, blood sugar, blood lipids, self-reported depression, anxiety, stress, and health-related quality of life, and work-related variables including absenteeism and presenteeism.

Eligibility criteria: Inclusion Criteria:

* physically inactive (do NOT meet the WHO's recommended MVPA levels)
* office employees in Hong Kong.

Exclusion Criteria:

* participants are engaging other ongoing programs involving MVPA promotion
* if they report any conditions preventing them from being active.

Primary outcomes:
measure: moderate-to-vigorous physical activity (MVPA) levels
timeFrame: baseline, 13 weeks, 25 weeks
Secondary outcomes:
measure: changes of self-report MVPA levels (min/week)
timeFrame: baseline, 13 weeks, 25 weeks
measure: Height in meters
timeFrame: baseline, 13 weeks, 25 weeks
measure: Weight in kilograms
timeFrame: baseline, 13 weeks, 25 weeks
measure: Body mass index (BMI, kg/m2)
timeFrame: baseline, 13 weeks, 25 weeks
measure: Waist circumference (cm)
timeFrame: baseline, 13 weeks, 25 weeks
measure: %Body fat
timeFrame: baseline, 13 weeks, 25 weeks
measure: Blood pressure (mmHg)
timeFrame: baseline, 13 weeks, 25 weeks
measure: Hemoglobin A1C (%)
timeFrame: baseline, 13 weeks, 25 weeks
measure: Depression, anxiety and stress
timeFrame: baseline, 13 weeks, 25 weeks
measure: Presenteeism
timeFrame: baseline, 13 weeks, 25 weeks
measure: High-density lipoprotein (mmol/L)
timeFrame: baseline, 13 weeks, 25 weeks
measure: Triglyceride (mmol/L)
timeFrame: baseline, 13 weeks, 25 weeks
Other outcomes:
Locations:
city: Kowloon Tong
country: Hong Kong
facility: Department of Sport, Physical Education, and Health
Study officials:
affiliation: University of California, Merced
name: Martin S. Hagger, Dr.
role: PRINCIPAL_INVESTIGATOR
affiliation: The Hong Kong Polytechnic University
name: Xiangyan Chen, Dr.
role: PRINCIPAL_INVESTIGATOR
affiliation: Hong Kong Nang Yan College of Higher Education, Hong Kong, China
name: Xiu Ming Fong, Dr.
role: PRINCIPAL_INVESTIGATOR
affiliation: Hong Kong Baptist University
name: Chunqing Zhang, Dr.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Sun Y, Wang A, Yu S, Hagger MS, Chen X, Fong SSM, Zhang C, Huang WY, Baker JS, Dutheil F, Gao Y. A blended intervention to promote physical activity, health and work productivity among office employees using intervention mapping: a study protocol for a cluster-randomized controlled trial. BMC Public Health. 2020 Jun 25;20(1):994. doi: 10.1186/s12889-020-09128-z.