Article

Few studies have investigated how well early activity measurements by
accelerometers predict recovery after stroke. First, we assessed the predictive
value of accelerometer-based measurements of upper-limb activity in patients with
acute stroke with a hemiplegic arm. Second, we established the difference in arm
activity between hospitalized stroke and nonstroke patients. In total, 129
patients with acute stroke and 19 controls participated. Activity of the upper
limbs was monitored for 48 h, and these data were used to determine the
predictive value of the activity variables compared with the modified Rankin
Scale (mRS), which was assessed at 3 mo poststroke onset. The sensitivity and
specificity in relation to the mRS were 0.80 and 0.77, respectively, for the
activity of impaired arm (AIA) and 0.85 and 0.75, respectively, for the ratio
variable calculated by dividing the AIA by the activity of the nonimpaired arm.
The corresponding cutoff values were 597,546 counts for AIA and 0.33 for the
ratio. The predictive value of AIA combined with age was 85% to the disability
status defined as an mRS score of 2 or less.

Langue : ANGLAIS