Try refreshing your browser, or Fast walkers in their 80s have half the risk of cognitive decline Back to video We apologize, but this video has failed to load. All had completed cognitive and gait speed tests and sometimes also brain scans. If the super movers did show signs of decline, the condition usually worsened more slowly. The super movers might also be unusually healthy, with few diseases, good nutrition, lucky genes, high incomes, robust social support or combinations of those. You can learn how to assess your own gait speed here and find estimates of typical gait speeds by age here.