ABSTRACT
Allied to functional assessment, walking tests have been reported to be reliable and valid for several populations, quantifying an individual’s functional capacity and responding to changes during the rehabilitation process. This study aims to analyze the construct validity of the 2-minute walk test for patients with prosthetic lower limbs undergoing rehabilitation. A total of 51 patients aged over 18 years underwent the 2-minute walk test. These individuals had a clinical diagnosis of lower limb amputation at any level and had undergone rehabilitation at least six months at the time of assessment, which was correlated with the Functional Measure for Amputees (FMA) questionnaires and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) aspects to obtain the Pearson Correlation Coefficient with a significance level of p<0.05. Among the participants, 64.7% were male, with a mean age of 53.4 years, 59.92% had transtibial amputation and the main cause was trauma (54.90%). The average score for the questionnaires was 63.58 points for the Physical Capacity of the SF-36 and 37.14 points for question two of the FMA. The correlation of the distance walked in the 2-minute walk test showed a moderate correlation for the Physical Capacity of the SF-36 and a moderate correlation for question two of the FMA. The outcomes show a moderate correlation between the 2-minute walk test and the subjective function assessment tools used, showing that it is valid as an objective measure for the population studied.
Keywords:
Amputation; International Classification of Functioning, Disability and Health; Gait; Prostheses and Implants
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