This meta-analysis found that neurodynamic exercises were effective in increasing knee extension range of motion (ROM) and passive straight leg raising (SLR) when compared to no intervention and other techniques.
Effect sizes ranged from -2.28 to -0.21 for knee extension ROM and from 0.44 to 2.55 for passive SLR when compared to control groups or other interventions. However, the authors did warn that study heterogeneity was a concern.
All included studies were graded as ≥2 in terms of study quality. Heterogeneity in the meta-analysis was 88.5% for knee extension ROM and 82.72% for the passive SLR.
Despite these values, the best available evidence shows a more beneficial effect of neurodynamic exercises in hamstring flexibility when compared to other interventions.
> From: López-López, Phys Ther Sport 40 (2019) 244-250 (Epub ahead of print). All rights reserved to Elsevier Ltd. Click here for the online summary.
Despite the issue of study heterogeneity, this review shows promising results of using neurodynamic exercises to improve hamstring flexibility. This outcome is relevant for two major reasons:
Given the easy application of these techniques, it should be included in programs that target knee extension range of motion in a wide range of populations in the rehabilitation setting.
Although it was not analysed in this review, neurodynamic exercises may also be used and play a role in injury prevention programs.