Nanette Mutrie

TL;DR: The purpose of this review was to update existing knowledge of "How many steps/day are enough?", and to inform step-based recommendations consistent with current physical activity guidelines.

TL;DR: Psychology of Physical Activity is a comprehensive account of psychological knowledge about physical activity covering motivation and the psychological factors associated with activity or inactivity; the feel-good factor.

TL;DR: The most successful interventions could increase walking among targeted participants by up to 30-60 minutes a week on average, at least in the short term, from a perspective of improving population health.

TL;DR: Physical activity is beneficial to health with or without weight loss, but adults who find it difficult to maintain a normal weight should probably be encouraged to reduce energy intake and minimize time spent in sedentary behaviours to prevent further weight gain.

TL;DR: The Psychology of Physical Activity as discussed by the authors is a comprehensive account of our psychological knowledge about physical activity covering: motivation and the psychological factors associated with activity or inactivity; the feel-good factor: the psychological outcomes of exercising, including mental health illness and clinical populations; interventions and applied practice in the psychology of physical activity; current trends and future directions in research and practice.