{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,17]],"date-time":"2025-10-17T13:48:35Z","timestamp":1760708915827},"reference-count":62,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2015,9,25]],"date-time":"2015-09-25T00:00:00Z","timestamp":1443139200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["PM&amp;R"],"published-print":{"date-parts":[[2016,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Some motor impairments, such as decreased reaction of peroneal muscles, altered kinematics, or poor postural control, have been described in people with functional ankle instability. Evidence shows a possible relationship between fibular nerve impairments and functional ankle instability.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate the electrophysiologic excitability of the common fibular nerve, as measured by strength\u2010duration curves, in subjects with functional ankle instability compared with a control group without ankle impairment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>A cross\u2010sectional study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>University Research laboratory.<\/jats:p><\/jats:sec><jats:sec><jats:title>Participants<\/jats:title><jats:p>Fifty subjects with functional ankle instability (35 men, 15 women; ages 24.36 \u00b1 5.01 years) and 63 uninjured control patients (44 men, 19 women; ages 22.67 \u00b1 4.85 years) were recruited by convenience sampling.<\/jats:p><\/jats:sec><jats:sec><jats:title>Interventions<\/jats:title><jats:p>Not applicable.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main Outcome Measures<\/jats:title><jats:p>Strength\u2010duration curves of the common fibular nerve were made in all participants. Rheobase, chronaxie, Bawen index, accommodation index, galvano\u2010tetanic threshold, and intensity thresholds for different pulse durations were obtained and compared between the 2 groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Subjects with functional ankle instability show increased values of chronaxie (0.58 \u00b1 0.24 ms versus 0.47 \u00b1 0.16 ms;<jats:italic>P<\/jats:italic>= .004), Bawen index (1.53 \u00b1 0.24 versus 1.39 \u00b1 0.21;<jats:italic>P<\/jats:italic>= .002), and intensity thresholds for pulse durations \u22642 ms both for rectangular and triangular pulse wave forms. The accommodation index was smaller in subjects with functional ankle instability than controls (3.7 \u00b1 0.72 versus 4.05 \u00b1 0.98;<jats:italic>P<\/jats:italic>= .036). The remaining parameters did not show significant differences between groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>These findings suggest that subjects with functional ankle instability show a decreased excitability in their common fibular nerve when compared with subjects without ankle injuries.<\/jats:p><\/jats:sec>","DOI":"10.1016\/j.pmrj.2015.09.009","type":"journal-article","created":{"date-parts":[[2015,9,26]],"date-time":"2015-09-26T05:00:08Z","timestamp":1443243608000},"page":"536-544","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Strength\u2010Duration Curves of the Common Fibular Nerve Show Hypoexcitability in People With Functional Ankle Instability"],"prefix":"10.1002","volume":"8","author":[{"given":"\u00c1ngel 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