Validations studies have also been performed to compare it to the SF-36, the short form health survey from the RAND Medical Outcomes Study. In terms of internal reliability the LEFS rates at 0.96 while test retest reliability rates are 0.86 for the general population and 0.94 for the chronic patients. The range of lower limbs conditions the self report questionnaire addresses includes musculoskeletal disorders, hip, knee or ankle pain as well as foot injuries.

Performing heavy activities around home Īs per the original study, the main objective of LEFS is to measure patient initial function, rate ongoing progress and quantify outcome.

Performing light activities around home.

Usual hobbies, recreational or sporting activities.

Any of usual work, housework or school activities.

today, in the exemplified activities, difficulties that are caused by the lower limb problem for which they are seeking attention. The main instruction in using the questionnaire is that the subject needs to rate any difficulties they might have on a normal day, i.e. ■ Extreme difficulty or unable to perform activity (0 points)

A similar scale is used for upper extremity functional status.Įach of the 20 items in this lower extremity functional scale calculator has the same functional scale attached to it: LEFS addresses to patients with pain disabilities and disorders affecting one or both lower extremities and is often performed to determine the effectiveness of orthopedic interventions. It comprises of a list of 20 everyday tasks and is used by clinicians as a measure of functional status and in setting goals and monitoring progress in different conditions.

This health tool evaluates the ability of the subject to perform daily activities. How does this lower extremity functional scale (LEFS) calculator work?

Lower extremity functional scale