Dementia affects dogs as well as humans. Known as cognitive dysfunction syndrome, it impacts up to 60 percent of dogs over age 11. Distinguishing the condition from normal aging proves challenging, with signs including altered sleep, social changes, confusion, and disorientation in familiar settings. A new study from North Carolina State University identifies a physical indicator: reduced stride length in the front legs. The research does not claim this sign alone diagnoses dementia, as gait can reflect other issues like pain. Yet it may offer an objective way to track aging dogs alongside standard tests. Analysis of 88 senior dogs showed front-leg stride length shortened more with cognitive impairment than with age alone. Dogs walked a five-meter path repeatedly over years. Shorter strides linked to lower cognitive scores, affecting front legs differently from hind legs due to their role in direction and braking. Owners noticing shorter strides should consult a vet, as treatable causes like arthritis exist. The findings appeared in Frontiers in Veterinary Science.
