Introduction; C.Riddoch and J.McKenna.- SECTION1: PHYSICAL ACTIVITY: A LIFECOURSE PERSPECTIVE.- Physical Activity and health through the Lifespan; C.Boreham and C.Riddoch.- SECTION 2: PHYSICAL ACTIVITY AND HEALTH RELATIONSHIPS.- Epidemiology of Activity and Physical Health; R.W.Jakes and N.J.Wareham.- Physical Activity and Mental Health; D.Carless and G.Faulkner.- Objective Measurements of Physical Activity;A.Copper.- Risks of Physical Activity;W.van Mechelen.- SECTION 3: PROMOTING PHYSICAL ACTIVITY.- Inactivity, A Problem Waiting to be Solved; N.Mutrie and C.Woods.- The Role of Primary Care; A.Taylor.- Promoting Physical Activity through Schools; K.Fox and J.Harris.- The Environment: The Greatest Barrier?; J.Kerr, F.Ewes and D.Carroll.- SECTION 4: THE BIOLOGY AND ANTHROPOLOGY OF PHYSICAL ACTIVITY.- Biological Aspects of Physical Activity and Health; A.Vivu and M.Harro.- Bibliography.- Index.