Stuart J.H. Biddle is Professor of Physical Activity and Health, and Director of the Centre for Health Research at the University of Southern Queensland, near Brisbane, Australia. Nanette Mutrie is Chair of Physical Activity for Health and Director of the Physical Activity for Health Research Centre at the University of Edinburgh, Scotland. Trish Gorely is Professor of Physical Activity for Health in the Department of Nursing and Midwifery at the University of the Highlands and Islands, Scotland. Guy Faulkner is Chair (Professor) in Applied Public Health and Head of the Population Physical Activity (Pop PA) Lab in the School of Kinesiology at the University of British Columbia, Canada.

• Section 11. Introduction and Setting the SceneSection 22. Physical Activity and Psychological Well-Being3. Physical Activity and Self-Esteem4. Physical Activity and Cognitive Functioning 5. Physical Activity and Clinical Depression6. Physical Activity and Other Mental Health Challenges: Anxiety, Schizophrenia, and Substance Use Disorders7. Physical Activity Correlates, Determinants, and Barriers Section 38. Common Theories 1 – Social Cognitive and Motivational Approaches9. Common Theories 2 – Stage-Based Approaches10. Automatic and Dual-Process ApproachesSection 411. Physical Activity Interventions: Planning and Design12. Physical Activity Interventions for Young People13. Physical Activity Interventions for Adults and Older AdultsSection 514. Psychology of Sedentary Behaviour Section 615. Commentary and Recommendations

Stuart J.H. Biddle is Professor of Physical Activity and Health, and Director of the Centre for Health Research at the University of Southern Queensland, near Brisbane, Australia. Nanette Mutrie is Chair of Physical Activity for Health and Director of the Physical Activity for Health Research Centre at the University of Edinburgh, Scotland. Trish Gorely is Professor of Physical Activity for Health in the Department of Nursing and Midwifery at the University of the Highlands and Islands, Scotland. Guy Faulkner is Chair (Professor) in Applied Public Health and Head of the Population Physical Activity (Pop PA) Lab in the School of Kinesiology at the University of British Columbia, Canada.

• Section 11. Introduction and Setting the SceneSection 22. Physical Activity and Psychological Well-Being3. Physical Activity and Self-Esteem4. Physical Activity and Cognitive Functioning 5. Physical Activity and Clinical Depression6. Physical Activity and Other Mental Health Challenges: Anxiety, Schizophrenia, and Substance Use Disorders7. Physical Activity Correlates, Determinants, and Barriers Section 38. Common Theories 1 – Social Cognitive and Motivational Approaches9. Common Theories 2 – Stage-Based Approaches10. Automatic and Dual-Process ApproachesSection 411. Physical Activity Interventions: Planning and Design12. Physical Activity Interventions for Young People13. Physical Activity Interventions for Adults and Older AdultsSection 514. Psychology of Sedentary Behaviour Section 615. Commentary and Recommendations

Stuart J.H. Biddle is Professor of Physical Activity and Health, and Director of the Centre for Health Research at the University of Southern Queensland, near Brisbane, Australia. Nanette Mutrie is Chair of Physical Activity for Health and Director of the Physical Activity for Health Research Centre at the University of Edinburgh, Scotland. Trish Gorely is Professor of Physical Activity for Health in the Department of Nursing and Midwifery at the University of the Highlands and Islands, Scotland. Guy Faulkner is Chair (Professor) in Applied Public Health and Head of the Population Physical Activity (Pop PA) Lab in the School of Kinesiology at the University of British Columbia, Canada.

• Section 11. Introduction and Setting the SceneSection 22. Physical Activity and Psychological Well-Being3. Physical Activity and Self-Esteem4. Physical Activity and Cognitive Functioning 5. Physical Activity and Clinical Depression6. Physical Activity and Other Mental Health Challenges: Anxiety, Schizophrenia, and Substance Use Disorders7. Physical Activity Correlates, Determinants, and Barriers Section 38. Common Theories 1 – Social Cognitive and Motivational Approaches9. Common Theories 2 – Stage-Based Approaches10. Automatic and Dual-Process ApproachesSection 411. Physical Activity Interventions: Planning and Design12. Physical Activity Interventions for Young People13. Physical Activity Interventions for Adults and Older AdultsSection 514. Psychology of Sedentary Behaviour Section 615. Commentary and Recommendations