Dynamic postural-stability deficits after cryotherapy to the ankle joint

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Deutscher übersetzter Titel:Dynamisch-posturales Stabilitätsdefizit nach Kryotherapie des Sprunggelenks
Autor:Fullam, Karl; Caulfield, Brian; Coughlan, Garrett F.; McGroarty, Mark; Delahunt, Eamonn
Erschienen in:Journal of athletic training
Veröffentlicht:50 (2015), 9, S. 893-904, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Elektronische Ressource (online) Gedruckte Ressource
Sprache:Englisch
ISSN:1062-6050, 0160-8320, 1938-162X
DOI:10.4085/1062-6050-50.7.07
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Erfassungsnummer:PU201512009215
Quelle:BISp

Abstract

Context: Decreased postural stability is a primary risk factor for lower limb musculoskeletal injuries. During athletic competitions, cryotherapy may be applied during short breaks in play or during half-time;however, its effects on postural stability remain unclear. Objective: To investigate the acute effects of a 15-minute ankle-joint cryotherapy application on dynamic postural stability. Design: Controlled laboratory study. Setting: University biomechanics laboratory. Patients or Other Participants: A total of 29 elite-level collegiate male field-sport athletes (age = 20.8 ± 1.12 years, height = 1.80 ± 0.06 m, mass = 81.89 ± 8.59 kg) participated. Intervention(s): Participants were tested on the anterior (ANT), posterolateral (PL), and posteromedial (PM) reach directions of the Star Excursion Balance Test before and after a 15-minute ankle-joint cryotherapy application. Main Outcome Measure(s):  Normalized reach distances; sagittal-plane kinematics of the hip, knee, and ankle joints; and associated mean velocity of the center-of-pressure path during performance of the ANT, PL, and PM reach directions of the Star Excursion Balance Test. Results:  We observed a decrease in reach-distance scores for the ANT, PL, and PM reach directions from precryotherapy to postcryotherapy (P < .05). No differences were observed in hip-, knee-, or ankle-joint sagittal-plane kinematics (P > .05). We noted a decrease in mean velocity of the center-of-pressure path from precryotherapy to postcryotherapy (P < .05) in all reach directions. Conclusions: Dynamic postural stability was adversely affected immediately after cryotherapy to the ankle joint. Verf.-Referat