{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T23:40:07Z","timestamp":1748302807122,"version":"3.41.0"},"reference-count":45,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>Cardoso, F, Costa, MJ, Cola\u00e7o, P, Vilas-Boas, JP, Pinho, JC, Pyne, DB, and Fernandes, RJ. Ventilatory and perceived ergogenic effects of mandibular forward repositioning during running at maximal oxygen uptake intensity. <jats:italic toggle=\"yes\">J Strength Cond Res<\/jats:italic> 39(1): e13\u2013e19, 2025\u2014Wearing an intraoral dental splint may enhance ventilatory function and exercise performance. Nineteen runners performed on a 400-m outdoor track: (a) an incremental protocol to assess the velocity at maximal oxygen uptake (vV\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max) and (b) 2 square wave bouts wearing 2 intraoral splints (with and without mandibular forward repositioning). The time until exhaustion at vV\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max (TLimv V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max), ventilatory variables, oxygen uptake (V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>) kinetics, energetic profiling, perceived exertion and kinematics, were all measured. Ventilatory data were assessed breath-by-breath and perceived exertion evaluated using the Borg 6-20-point scale at the end of TLimv V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max bouts. Images were recorded by video cameras (120 Hz) and kinematic measures retrieved using Kinovea. A paired <jats:italic toggle=\"yes\">t<\/jats:italic> test was computed for comparison of splints (<jats:italic toggle=\"yes\">p<\/jats:italic> \u2264 0.05). With (vs. without) mandibular forward repositioning, runners increased their TLimv V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max by \u223c6% (<jats:italic toggle=\"yes\">p<\/jats:italic> = 0.03), coupled with higher ventilation (151 \u00b1 22 vs. 147 \u00b1 23 L\u00b7min<jats:sup>\u22121<\/jats:sup>, <jats:italic toggle=\"yes\">p =<\/jats:italic> 0.04), end-tidal oxygen tension (114.3 \u00b1 3.7 vs. 112.9 \u00b1 3.9 mm Hg, <jats:italic toggle=\"yes\">p<\/jats:italic> = 0.003), and lower inspiratory time (0.526 \u00b1 0.083 vs. 0.540 \u00b1 0.090 seconds, <jats:italic toggle=\"yes\">p<\/jats:italic> = 0.02), despite similar V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub> kinetics (e.g., 49.0 \u00b1 8.7 vs. 47.7 \u00b1 8.6 ml\u2219kg\u2219min<jats:sup>\u22121<\/jats:sup> of fast component amplitude) being observed. The energy expenditure was \u223c8% higher (<jats:italic toggle=\"yes\">p<\/jats:italic> = 0.03) with the mandible forward, coupled with lower perceived exertion scores (<jats:italic toggle=\"yes\">p<\/jats:italic> = 0.04). Mandibular forward repositioning was effective in acutely improving running performance at vV\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max with ergogenic effects on ventilatory and perceived variables.<\/jats:p>","DOI":"10.1519\/jsc.0000000000004953","type":"journal-article","created":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T23:00:34Z","timestamp":1748300434000},"page":"e13-e19","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Ventilatory and Perceived Ergogenic Effects of Mandibular Forward Repositioning During Running at Maximal Oxygen Uptake Intensity"],"prefix":"10.1519","volume":"39","author":[{"given":"Filipa","family":"Cardoso","sequence":"first","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport, CIFI2D, Faculty of Sport, University of Porto, Porto, Portugal;"},{"name":"Porto Biomechanics Laboratory, LABIOMEP, Faculty of Sport, University of Porto, Porto, Portugal;"}]},{"given":"M\u00e1rio J.","family":"Costa","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport, CIFI2D, Faculty of Sport, University of Porto, Porto, Portugal;"},{"name":"Porto Biomechanics Laboratory, LABIOMEP, Faculty of Sport, University of Porto, Porto, Portugal;"}]},{"given":"Paulo","family":"Cola\u00e7o","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport, CIFI2D, Faculty of Sport, University of Porto, Porto, Portugal;"},{"name":"Porto Biomechanics Laboratory, LABIOMEP, Faculty of Sport, University of Porto, Porto, Portugal;"}]},{"given":"Jo\u00e3o Paulo","family":"Vilas-Boas","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport, CIFI2D, Faculty of Sport, University of Porto, Porto, Portugal;"},{"name":"Porto Biomechanics Laboratory, LABIOMEP, Faculty of Sport, University of Porto, Porto, Portugal;"}]},{"given":"Jo\u00e3o C.","family":"Pinho","sequence":"additional","affiliation":[{"name":"Faculty of Dental Medicine, University of Porto, Porto, Portugal;"},{"name":"Institute of Science and Innovation in Mechanical and Industrial Engineering, INEGI, Faculty of Engineering, University of Porto, Porto, Portugal; and"}]},{"given":"David B.","family":"Pyne","sequence":"additional","affiliation":[{"name":"Research Institute for Sport & Exercise, University of Canberra, Canberra, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5811-0443","authenticated-orcid":false,"given":"Ricardo J.","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport, CIFI2D, Faculty of Sport, University of Porto, Porto, Portugal;"},{"name":"Porto Biomechanics Laboratory, LABIOMEP, Faculty of Sport, University of Porto, Porto, 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