A Group-Based Walking Study Using WeChat to Enhance Physical Activity Among Older Adults

Participants in the control group only saw their own daily walking steps using the WeChat. They did not use WeChat to see other group members' daily steps and did not contact other group members. The participants were asked to use the app every day. A message (through WeChat) was sent to remind them to use the application if they had not done so within three days.

Participants in the experimental condition used WeChat for 4 weeks to see their own and other's walking steps and also were able to contact other group members. The participants were asked to use the application every day. A message (through the group chat) was sent to remind them to use the application if they have not done so within three days.