Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/45287
Título: Assessment of muscle fatigue after an ultra-endurance triathlon using tensiomyography (TMG)
Autores/as: García Manso, Juan Manuel 
Rodríguez-Ruiz, David 
Rodríguez-Matoso, Dario
de Yves, Saa
Sarmiento Montesdeoca, Samuel 
Quiroga Escudero, Miriam Esther 
Clasificación UNESCO: 241106 Fisiología del ejercicio
Palabras clave: Tensiomyography
Ironman
long-distance race
neuromuscular fatigue
mechanical characteristics of muscle
Fecha de publicación: 2011
Editor/a: 0264-0414
Publicación seriada: Journal of Sports Sciences 
Resumen: In this study, we used tensiomyography (TMG) to assess muscle status immediately after an ultra-endurance triathlon. Maximal radial displacement or deformation of the muscle belly, contraction time, delay time, sustain time, and relaxation time were measured for both legs, and dependent t-tests were used to compare means between the beginning and end of the race. The 19 men assessed (age 37.9 ± 7.1 years; height 177.5 ± 4.6 cm; weight: 73.6 ± 6.5 kg) participated in the 2009 edition of the Lanzarote Ironman. Deterioration in the neural response was observed for contraction time (P = 0.008) and relaxation time (P = 0.011), with a moderate decrease in the response time (sustain time) and a loss in muscle stiffness (deformation of the muscle belly). The effect of muscle fatigue on the rectus femoris and biceps femoris was different. Barely any changes in contraction time, relaxation time, sustain time, and deformation of the muscle belly were observed, while only the contraction response time decreased to a significant extent (reduction in delay time; P = 0.003). The considerable loss in contractile capacity induced by a long-distance race was reflected in changes in the neuromuscular response and fluctuations in the contractile capacity of the muscle. These modifications, derived from a prolonged, exhausting effort, can be assessed in a simple, non-aggressive, non-invasive way using tensiomyography.
URI: http://hdl.handle.net/10553/45287
ISSN: 0264-0414
DOI: 10.1080/02640414.2010.548822
Fuente: Journal of Sports Sciences[ISSN 0264-0414],v. 29, p. 619-625
Colección:Artículos
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