Relationships Among Perceived Functional Capacity, Self-Efficacy, and Disability After Dysvascular Amputation.
Matthew J Miller, Dawn M Magnusson, Guy Lev and 4 others
PMID 29580940WHAT IT FOUND
Among 38 men after dysvascular transtibial amputation, higher self-efficacy for chronic disease management was associated with less disability.
Self-efficacy was partly linked to the association between perceived mobility and disability, but did not fully account for it.
Key findings
01Better perceived mobility was associated with lower disability and higher chronic disease self-efficacy, and higher self-efficacy was associated with lower disability.
02Self-efficacy partially mediated the relationship between perceived mobility and disability; the direct association remained significant after self-efficacy was included.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The analysis used baseline cross-sectional data from only 38 men, so it cannot show cause and effect and may not apply to women or people with non-dysvascular amputation. The sample size was too small to include covariates, so age, body mass index, comorbid conditions, and weeks since amputation were not adjusted for. Functional capacity was self-reported, not measured by performance tests such as walking speed or balance. No intervention was tested, so the paper cannot show that increasing self-efficacy reduces disability.
Declared interests
The authors reported no relevant conflicts of interest.
The easy way to misread this
Do not read this as evidence that a self-efficacy intervention will reduce disability after dysvascular transtibial amputation. The study used baseline cross-sectional data from 38 men and tested statistical mediation, not a treatment effect.