By appointment only ~ 10 minutes per person. Determine if you are at an increased risk for falling by performing a series of physical activities, and learn what you can do to lower your risk of having a fall. Screening preformed by a team of professionals including John Johnson is a retired physical therapist assistant and former FallProof! instructor. He is a volunteer "master trainer" for the A Matter of Balance Fall Prevention program in Sonoma County, administered by the Adult & Aging Division of the County Human Services Department. This event is limited to 12 appointments.