Study on the application of the bio-electrical impedance method for the estimation of tendon elongation

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Deutscher übersetzter Titel:Studie über den Einsatz der bio-elektrischen Impedanzmethode für die Abschätzung der Sehnenverlängerung
Autor:Ohta, Megumi; Masuo, Yoshihisa; Kanehisa, Hiroaki; Kawakami, Yasuo; Fukunaga, Tetsuo
Erschienen in:International journal of sport and health science
Veröffentlicht:3 (2005), Spec. Issue 1, S. 296-303, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Elektronische Ressource (online) Gedruckte Ressource
Sprache:Englisch
ISSN:1880-4012, 0915-3942, 1348-1509
DOI:10.5432/ijshs.3.296
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Erfassungsnummer:PU200904002217
Quelle:BISp

Abstract

This study aimed to investigate the applicability of the bio-electrical impedance (BI) method for the estimation of tendon elongation due to muscle contraction. We applied the BI method with a cylindrical model to the muscle-tendon complex (MTC). While subjects performed ramp isometric elbow flexion up to 80% of maximal voluntary contraction (MVC), BI was measured using a bio-electrical impedance muscle analyzer. Simultaneously, tendon elongation was also determined directly by ultrasonography. The amount of tendon elongation (ΔLt) and relative BI values (%BI) changed curvilinearly with increasing torque development. There was a significant negative correlation between ΔLt and %BI in each subject (r = 0.924 0.994, p<0.01). Thus, the present results indicate the effectiveness of the BI method for the estimation of tendon elongation during muscle contractions in vivo in human. Verf.-Referat