Falls are common in the otherwise nondisabled elderly population. Dopamine is a brain chemical that is important for gait and motor functions. Normal aging is associated with a significant loss of dopamine activity in the brain. Whether loss of brain dopamine may be related to falls in the elderly is unclear. Brain dopamine activity was assessed in community-dwelling subjects who filled out a fall diary for 6 months. We found no significant difference in brain dopamine activity between single-time fallers and nonfallers. However, subjects who had more than two falls tended to have lower brain dopamine activity.
Volume 46 Number 8, 2009
Pages 1045 — 1052