RonBoyd
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How Fast Senior Citizens Walk Found to be Good Predictor of How Long They Will Live
How fast senior citizens walk appears to be a better gage of how long they will live than trying to do a more complicated analysis using age, sex, chronic conditions, smoking history, blood pressure, body mass index, and hospitalization. This study of senior citizens found walking gait is especially accurate for predicting remaining life for those age 75 and older.
The researchers found that gait speed was associated with differences in the probability of survival at all ages in both sexes, but was especially informative after age 75 years. At this age, predicted 10-year survival across the range of gait speeds ranged from 19 percent to 87 percent in men and from 35 percent to 91 percent in women. [my emphasis]