Marcus (psychiatry, Brown University) and Forsyth (psychology, Cleveland State U.) translate theories from behavioral science research into practical methods for helping sedentary individuals engage in physical activity. The handbook defines the five stages of motivational readiness for change model, provides sample questionnaires and activity tracking sheets, and demonstrates their application in individual, group counseling, workplace, and community programs. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)