TABLE 1.

The content outline of individual brief intervention and group activity of combined intervention.

A. Content outline of the individual brief intervention
Session one (at baseline)
Duration	Steps	Goals
20 min	• Introduce the age- and sex-specific fitness reference values and discuss the clinical relevance. • Encourage the participants to compare the normative data with their own results.	To assess their own health and enhance the knowledge of the harmful effects of sedentary behavior and benefits of physical activity. To enhance intention of reducing sedentary behavior and increasing physical activity.
20 min	• Introduce Zero-time exercise (ZTEx), demonstrate the examples of different movements and do the exercise together with participants. • Share personal experiences and benefits of doing physical activity, particularly ZTEx.	To enhance their knowledge and self-efficacy in relation to ZTEx. To strength the motivation and promote its conversion to action.
20 min	• Invite participants to set realistic goals and plan for actions and introduce the workbook to participants. • Introduce the importance of “Gratitude and appreciation,” encourage to share what has been learnt and communicate with family.	To help set action plan and goals. To enhance positive family communication and well-being.
Session 2 (at 1 month after session 1)
20 min	• Invite participants to share their experience in relation to physical activity, ZTEx and family communication. • Review the records of their workbook.	To monitor the progress. To review and enhance their motivation.
20 min	• Discuss the barriers encountered in doing physical activity and explore the solution with participants. • Highlight their successfulness in exercising and positive family communication.	To enhance self-efficacy. To provide positive reinforcement.
20 min	• Provide encouragement and support. • Conclude with a summary and key statements.	To strengthen exercise motivation and regulatory factors.
B. Content outline of the group activity of the combined intervention (4 ho and 30 min)
30 min	• Answer the questionnaire and perform fitness assessments at baseline.	To provide an ice-breaking activity and increase participants’ health awareness and interest that followed.
45 min	• Receive an Interactive seminar on physical activity, particularly in ZTEx.	To introduce ZTEX by health professionals and proactively invite participation in the intervention.
45 min	• Conduct family Interactive physical activity games.	To provide good family interaction time and invite exercising with family members.
60 min	• Lunch.
120 min	• Conduct positive psychology-based family session.	To encourage participants to express appreciation to family members.
20 min	• Participants sharing session.	To allow participants to reflect their feeling and the learnt during the group activity.
10 min	• Closing remarks.