{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T17:11:07Z","timestamp":1778173867765,"version":"3.51.4"},"reference-count":54,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"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":[[2026,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background and Purpose<\/jats:title>\n                    <jats:p>Short Hamstring Syndrome (SHS) is described as a deficit of extensibility of this musculature. In contrast to Proprioceptive Neuromuscular Facilitation (PNF), which is widely used in these cases, the abdominal hypopressive technique (AHT) is presented as a possible method to improve flexibility. The primary aim of this trial was to assess the feasibility and acceptability of a single\u2010session AHT program versus PNF stretching in adults with SHS, while the secondary, exploratory aim was to estimate their immediate effects on hamstring flexibility to inform the design and sample size of a future definitive trial.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      A pilot randomized controlled trial of a single treatment session was designed, with a pre\u2010 and post\u2010treatment evaluation to assess the effects of both techniques on flexibility. 19 subjects were randomized into an AHT group and a PNF stretching group. The Straight Leg Raise and Toe Touch tests assessed changes after treatment. Paired samples\n                      <jats:italic>t<\/jats:italic>\n                      \u2010tests and independent samples\n                      <jats:italic>t<\/jats:italic>\n                      \u2010tests were used to statistically analyze changes within and between groups, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Significant improvements were observed in both groups on all tests pre\u2010 and post\u2010intervention. However, no significant differences were found between the groups following the intervention.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>Both AHT and PNF techniques produced immediate improvements in hamstring flexibility in adults with shortened hamstring syndrome. However, these findings are exploratory, and, given the pilot nature of the trial, no conclusions can be drawn regarding the superiority of one method over the other.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/pri.70155","type":"journal-article","created":{"date-parts":[[2025,12,23]],"date-time":"2025-12-23T07:20:19Z","timestamp":1766474419000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Immediate Effects of Abdominal Hypopressive Technique Versus PNF Stretching in Shortened Hamstring Syndrome: A Pilot Randomized Controlled Trial"],"prefix":"10.1002","volume":"31","author":[{"given":"Andr\u00e9s","family":"Forj\u00e1n\u2010Barcia","sequence":"first","affiliation":[{"name":"Departamento de Biolox\u00eda Funcional e Ciencias da Sa\u00fade, Faculty of Physical Therapy Universidade de Vigo  Pontevedra 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