What is the sensitivity of the LEFS?

Also, considering patient decision making, a potential error associated with the score on LEFS at a given point can be 5.3 with a 90% confidence interval. The sensitivity and specificity are . 81 and . 70, respectively.

Is LEFS outcome measure reliable?

The LEFS scores demonstrated excellent test-retest reliability (intraclass correlation coefficients ranging between 0.85 and 0.99) and demonstrated the expected relationships with measures assessing similar constructs (Pearson correlation coefficient values of greater than 0.7).

What is the responsiveness of LEFS?

The responsiveness of the LEFS scores was excellent, as suggested by consistently high effect sizes (greater than 0.8) in patients with different lower extremity conditions.

What are the limitations of LEFS?

The primary limitation of this measure is the variability when the last LEFS was captured over the 1 year postoperative period, as this is likely to increase as patients complete rehabilitation over time. In our study, the average time to postoperative LEFS was 110 days, but ranged from 60 to 361 days.

What is the sensitivity of LEFS?

Also, considering patient decision making, a potential error associated with the score on LEFS at a given point can be 5.3 with a 90% confidence interval. The sensitivity and specificity are . 81 and . 70, respectively.

What is the LEFS scoring scale?

LEFS score SUM (points for all 20 activities) Interpretation: Minimum score: 0 Maximum score: 80 The lower the score the greater the disability. The Minimal Detectable Change (MDC) is 9 scale points. The Minimal clinically Important Difference (MCID) is 9 scale points.

What is the left lower extremity functional test?

The lower extremity functional test (LEFT) consists of a series of 8 agility drills performed on a diamond shaped course (Figure 1). The LEFT was originally designed as a functional test to qualitatively and quantitatively assess an athlete's ability to return to sport after a lower extremity injury.

How reliable is the lower extremity functional scale valid?

The LEFS scores demonstrated excellent test-retest reliability (intraclass correlation coefficients ranging between 0.85 and 0.99) and demonstrated the expected relationships with measures assessing similar constructs (Pearson correlation coefficient values of greater than 0.7).

Get Lefs Printable

Name Date Patient ID Lower Extremity Functional Scale We are interested in knowing whether you are having any difficulty with the activities listed below because of your lower limb problem for which you are currently seeking attention. Provide an answer for each activity. Today do you or would you have any difficulty with Circle one number on each line Extreme Difficulty or Unable to Perform Activity Quite a Bit of Moderate A Little No d. Walking between rooms. e. Putting on your shoes or socks. f* Squatting. g. Lifting an object like a bag of groceries from the floor. h. Performing light activities around your home. i. Performing heavy activities around your j. Getting into or out of a car. k. Walking 2 blocks. l* m* Going up or down 10 stairs about 1 flight of stairs. n* Standing for 1 hour. o. Sitting for 1 hour. p* Running on even ground. q. Running on uneven ground r. Making sharp turns while running fast s. Hopping t. Rolling over in bed Score /80 Activities a* Any of your usual work household or school activities. b. Your usual hobbies recreational or sporting activities. Walking a mile. COLUMN TOTALS for physical therapist use Score is the sum of all circled items. Today do you or would you have any difficulty with Circle one number on each line Extreme Difficulty or Unable to Perform Activity Quite a Bit of Moderate A Little No d. Walking between rooms. e. Putting on your shoes or socks. f* Squatting. g. Lifting an object like a bag of groceries from the floor. Walking between rooms. e. Putting on your shoes or socks. f* Squatting. g. Lifting an object like a bag of groceries from the floor. h. Performing light activities around your home. i. Performing heavy activities around your j. Getting into or out of a car. h. Performing light activities around your home. i. Performing heavy activities around your j. Getting into or out of a car. k. Walking 2 blocks. l* m* Going up or down 10 stairs about 1 flight of stairs. n* Standing for 1 hour. k. Walking 2 blocks. l* m* Going up or down 10 stairs about 1 flight of stairs. n* Standing for 1 hour. o. Sitting for 1 hour. p* Running on even ground. q. Running on uneven ground r. Making sharp turns while running fast s. o. Sitting for 1 hour. p* Running on even ground. q. Running on uneven ground r. Making sharp turns while running fast s. Hopping t. Rolling over in bed Score /80 Activities a* Any of your usual work household or school activities. Hopping t. Rolling over in bed Score /80 Activities a* Any of your usual work household or school activities. b. Your usual hobbies recreational or sporting activities. Walking a mile. COLUMN TOTALS for physical therapist use Score is the sum of all circled items. Today do you or would you have any difficulty with Circle one number on each line Extreme Difficulty or Unable to Perform Activity Quite a Bit of Moderate A Little No d. Walking between rooms. e. Putting on your shoes or socks. f* Squatting. g. Lifting an object like a bag of groceries from the floor. h. Performing light activities around your home. i. Performing heavy activities around your j. Getting into or out of a car.

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