{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T17:10:12Z","timestamp":1786122612503,"version":"build-2736575974"},"reference-count":38,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T00:00:00Z","timestamp":1781308800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T00:00:00Z","timestamp":1781308800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiotherapy Res Intl"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background and Purpose<\/jats:title>\n                    <jats:p>The LightBack device applies controlled axial compression forces on the femur to replicate posterior femoral displacement and provide mechanical stimulation to the gluteal region. This study aimed to examine the effects of LightBack application on sciatic nerve stiffness and posterior chain flexibility in healthy, physically active individuals.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      A randomized within\u2010subject, contralateral\u2010leg controlled trial was conducted with 25 healthy, physically active participants (49 lower limbs;\n                      <jats:italic>n<\/jats:italic>\n                      \u00a0=\u00a025 in the LightBack testing leg and\n                      <jats:italic>n<\/jats:italic>\n                      \u00a0=\u00a024 in the contralateral control leg). Sciatic nerve stiffness was assessed using shear wave elastography (SWE), and posterior chain flexibility was evaluated using the Active Knee Extension (AKE) and Active Straight Leg Raise (ASLR) tests. All outcomes were measured immediately before and after each intervention session.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Linear mixed\u2010effect models demonstrated a significant time\u00a0\u00d7\u00a0leg interaction for all variables (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.05). In the LightBack testing leg, AKE improved from 26.72\u00b0 to 19.04\u00b0 (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001) and ASLR from 22.08\u00b0 to 15.96\u00b0 (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001). Sciatic nerve stiffness decreased from 33.84 to 28.79\u00a0kPa (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001), while shear wave velocity declined from 3.27 to 2.99\u00a0m\/s (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>LightBack application resulted in significant improvements in posterior chain flexibility and reductions in sciatic nerve stiffness in healthy individuals. Further studies are warranted to explore these relationships and their implications for clinical and performance settings.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/pri.70249","type":"journal-article","created":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T17:58:50Z","timestamp":1781373530000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The Effects of LightBack on Sciatic Nerve Stiffness and Posterior Chain Flexibility in Healthy Participants"],"prefix":"10.1002","volume":"31","author":[{"given":"Charles","family":"Cotteret","sequence":"first","affiliation":[{"name":"Universidad Europea de Madrid Faculty of Medicine Health and Sports Department of Physiotherapy  Madrid 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