In this seminar course students will gain knowledge on psychosocial and physiological risk factors for and consequences of age-related decline in mobility and physical function. Indicators of functional health in aging population will be discussed. Self-reported and performance-based assessment tools of mobility and physical function designed for older population will be critically evaluated. The disability associated with age-related decline in mobility and physical function will be discussed with respect to incidence, prevalence, possible interventions and economic impact.