Association between MoCA scores and measures of functional mobility in lower extremity amputees after inpatient rehabilitation

Publication date: Available online 13 July 2016
Source:Archives of Physical Medicine and Rehabilitation
Author(s): Courtney Frengopoulos, Joshua Burley, Ricardo Viana, Michael WC. Payne, Susan W. Hunter
ObjectiveTo determine if scores on a cognitive measure are associated with walking endurance and functional mobility of individuals with transfemoral or transtibial amputations at discharge from inpatient prosthetic rehabilitation.DesignRetrospective cohort study.SettingRehabilitation hospital.ParticipantsConsecutive admissions (n=176, age 64.27 ± 13.23 years) with transfemoral or transtibial amputation that had data at admission and discharge from inpatient prosthetic rehabilitation program.InterventionsNot applicable.Main outcome measuresCognitive status was assessed using the Montreal Cognitive Assessment (MoCA). The L Test and the 2 Minute Walk Test (2MWT) were used to estimate functional mobility and walking endurance.ResultsMean MoCA score was 24.05 (±4.09), range 6 to 30 and 56.3% of patients had scores < 26. MoCA scores had a small positive correlation with the 2MWT, r=0.29, p<0.01, and a small negative correlation to the L test, r=-0.24, p<0.01. In multivariable linear regression, compared to people with the highest MoCA score quartile, there was no difference on the 2MWT but people in the lowest two quartiles took longer to complete the L Test.ConclusionsCognitive impairment was very prevalent. The association between MoCA and functional mobility was statistically significant. These results highlight the potential for differences on complex motor tasks for individuals with cognitive impairment but does not indicate a need to exclude them from rehabilitation on the basis of cognitive impairment alone.



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