Get Lefs Scale Pdf

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.

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.

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.

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.

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.

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).

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.