The Effects of 24-Weeks Community-based Brisk Walking in People With Parkinson's Disease

The goal of this clinical trial is to investigate if brisk walking can improve walking function in people with Parkinson's disease and what kind of brisk walking intervention that is most effective. The main questions are: If brisk walking can reduce self-perceived walking difficulty What type of exercise intervention is most effective. Researchers will compare a brisk walking group receiving a personalized walking program with a group receiving an activity tracker and a control group. Participants will * be tested at baseline (0 weeks), post the intervention period (24 weeks) and after a follow-up period (48 weeks). * be randomly allocated to one of three groups at baseline. * follow the prescribed intervention they are allocated to.