Eccentric/concentric torque deficits in the quadriceps muscle
Deutscher übersetzter Titel: | Exzentrische und konzentrische Drehmomentsdefizite in M. quadriceps |
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Autor: | Trudelle-Jackson, Elaine; Meske, Neil; Highgenboten, Carl; Jackson, Allen |
Erschienen in: | Journal of orthopaedic & sports physical therapy |
Veröffentlicht: | 11 (1989), 4, S. 142-145, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0190-6011, 1938-1344 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199102042609 |
Quelle: | BISp |
Abstract
The purpose of the present investigation was to estimate the percentage of asymptomatic subjects who demonstrate an eccentric/concentric torque deficit in leg extension. One hundred and five subjects with a mean age of 23.51 were tested on the KIN-COM dynamometer for maximum eccentric and concentric torque during leg extension using an 80 degrees range of motion at 50 degrees/sec velocity. The subjects were categorized as demonstrating a deficit if at any point in the range of motion the eccentric torque was 85 or less of the corresponding concentric torque. The results revealed that 35-54 of the subjects, depending upon sex or leg tested, demonstrated a deficit. These results suggest that many asymptomatic individuals possess an eccentric/concentric torque deficit. These findings question the validity of previous clinical research indicating that patients with anterior knee pain tend to possess an eccentric/concentric torque deficit and that correction of the deficit alleviates the pain. Verf.-Referat