Motivation and willingness to increase physical activity for dementia risk reduction: Cross-Sectional UK survey with people aged 50 and over.

Men and those with better health status were more physically active. Those who exercised less and those who were more motivated to increase physical activity were not necessarily able to be physically active. Multisectoral public health strategies should seek to use the high motivation levels among this group to mitigate the barriers related to physical activity for dementia risk reduction.