Reliability and validity of a novel muscle contusion device
Deutscher übersetzter Titel: | Reliabilität und Validität eines neuen Gerätes zur Hervorrufung einer Kontusion |
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Autor: | McBrier, Nicole M.; Neuberger, Thomas; Okita, Nori; Webb, Andrew; Sharkey, Neil |
Erschienen in: | Journal of athletic training |
Veröffentlicht: | 44 (2009), 3, S. 275-278, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1062-6050, 0160-8320, 1938-162X |
DOI: | 10.4085/1062-6050-44.3.275 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201105004310 |
Quelle: | BISp |
Abstract
Context: Many models have been employed to replicate skeletal muscle injury associated with trauma; however, most are restricted to 1 level of severity. Objective: To create and validate an injury-producing device that could generate multiple levels of injury severity. Design: Validation study. Patients or Other Participants: Twenty-six male Wistar rats, 3 to 4 months old. Intervention(s): A contusion device was developed and its ability to deliver consistent impacts was validated alone and in the presence of an experimental animal. A free-falling mass (267 g) was adjusted to the desired height (40, 50, 60, or 70 cm) and then dropped. Main Outcome Measure(s): Peak load, peak displacement, impulse, energy, and velocity peak were measured. Injury severity was determined using magnetic resonance imaging. Results: Outcome measures observed from the device alone were different by height (F18,136 = 21.807, P < .001, 1−β = 1.0). Outcomes using the experimental animals were also dependent on height (F14,102 = 68.679, P < .001, 1−β = 1.0). Linear regression analyses indicated that height accounted for 17% to 89% of the variance. Conclusions: Mild to moderate and moderate to severe injuries can be replicated with this device, which will be useful in evaluating clinical treatments on acute muscle injury. Verf.-Referat