{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T12:50:31Z","timestamp":1782391831476,"version":"3.54.5"},"reference-count":79,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T00:00:00Z","timestamp":1770768000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Back and Musculoskeletal Rehabilitation"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Chronic ankle instability (CAI) affects approximately 46% of individuals after ankle sprains, disrupting ligaments, muscles, and joint receptors, and impairing postural control. Percutaneous tibial nerve stimulation (PTNS) is a minimally invasive neuromodulation technique that may enhance neuromuscular function. This study aimed to evaluate the acute effects of ultrasound-guided PTNS on postural control in individuals with CAI compared to healthy controls.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This non-randomized controlled study included 28 participants: 14 with CAI (mean age 22.85\u2009\u00b1\u20095.02 years; BMI 24.83\u2009\u00b1\u20094.28) and 14 healthy controls (mean age 21.86\u2009\u00b1\u20093.44 years; BMI 22.8\u2009\u00b1\u20093.29). CAI diagnosis was confirmed by scores &lt;24 on the Spanish Cumberland Ankle Instability Tool. Postural control was assessed via force platform during single-leg stance with eyes open and closed at baseline, immediately post-intervention, and at 2, 24, and 48\u2005h post-PTNS. PTNS delivered biphasic current (10\u2005Hz, 250 \u00b5s pulse width) at maximum tolerable intensity for 1.5\u2005min under ultrasound guidance. Controls received no intervention.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Baseline postural control did not differ significantly between groups (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&gt;\u20090.05). Post-PTNS, no significant intergroup differences were observed, except a reduction over time in anteroposterior center of pressure amplitude (ACPap) in the CAI group with eyes closed (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.023). No significant intragroup changes occurred.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Although PTNS did not produce general improvements in postural control, the reduction in anteroposterior sway with eyes closed suggests a targeted neuromodulatory effect. These preliminary results support further research into PTNS as a complementary approach for managing CAI.<\/jats:p>\n                    <jats:p>\n                      <jats:bold>Trial registration:<\/jats:bold>\n                      ISRCTN177653522\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10538127261418991","type":"journal-article","created":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T17:52:35Z","timestamp":1770832355000},"page":"1205-1215","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Acute effects of posterior tibial nerve percutaneous neuromodulation on postural control in individuals with chronic ankle instability"],"prefix":"10.1177","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7816-1654","authenticated-orcid":false,"given":"Miguel","family":"Rodr\u00edguez-Rosal","sequence":"first","affiliation":[{"name":"School of 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