Article

The aims of this study were to evaluate and contrast the physical
attributes that are associated with self-reported vs. observed ability to walk
400 m among older adults. DESIGN: Analysis of baseline and 3-yr data from 1026
participants 65 yrs or older in the InCHIANTI (Invecchiare in Chianti) study was
conducted. Observed and self-reported ability to walk 400 m at baseline and at 3
yrs were primary outcomes. Predictors included leg speed, leg strength, leg
strength symmetry, range of motion, balance, and kyphosis. RESULTS: Balance, leg
speed, leg strength, kyphosis, leg strength symmetry, and knee range of motion
were associated with self-reported ability to walk 400 m at baseline (P < 0.001,
c = 0.85). Balance, leg speed, and knee range of motion were associated with
observed 400-m walk (P < 0.001, c = 0.85) at baseline. Prospectively, baseline
leg speed and leg strength were predictive of both self-reported (P < 0.001, c =
0.79) and observed (P < 0.001, c = 0.72) ability to walk 400 m at 3 yrs.
CONCLUSIONS: The profiles of attributes that are associated with self-reported
vs. observed walking ability differ. The factor most consistently associated with
current and future walking ability is leg speed. These results draw attention to
important foci for rehabilitation.

Langue : ANGLAIS