Position sense and reaction angle after eccentric exercise: the repeated bout effect

Abstract

The purpose of the present investigation was to examine the effects of a repeated eccentric exercise on position sense and muscle reaction angle. Fourteen healthy women underwent an isokinetic exercise session on their knee flexors, which was repeated after 4 weeks. Muscle damage indices, position sense and joint reaction angle of the knee were examined before, immediately after, as well as at 1, 2, 3, 4 and 7 days after exercise. The second exercise bout induced significantly lesser effects in all muscle damage indices as well as lesser disturbances in position sense and reaction angle when compared to the first one. The main finding of this study is that position sense and joint reaction angle to release of the lower limbs may adapt in response to a repeated bout of eccentric exercise, leading to less disturbances in position sense and reaction angle after the second bout of exercise.

Ejercicio excéntrico de baja intensidad y daño muscular en mujeres jóvenes. Un estudio piloto. (Low intensity eccentric exercise and muscle damage in young women. A pilot study)

“…Los estudios que han utilizado ejercicios excéntri-cos con mayor volumen e intensidad han demostrado que se produce un cambio en el ángulo óptimo de los músculos de los flexores de rodilla hacia una mayor longitud después de las sesiones (Brockett et al, 2001;Chen, Lin, Chen, Lin & Nosaka, 2011;Paschalis et al, 2008). Las diferencias entre nuestro estudio y los de la bibliografía pueden ser debidas a que el volumen y la intensidad de las sesiones no fue el suficiente para provocar adaptaciones significativas al realizar ejercicios excéntricos.…”

“…Al comparar estos resultados con otras investigaciones, observamos que la mayoría de los estudios sobre RBE coinciden con nuestros resultados (Barroso et al, 2010;Bowers et al, 2004;Brown, Child, Day & Donnelly, 1997;Howatson & van Someren, 2007;McHugh, 2003;Nosaka & Newton, 2002b;Nosaka & Sakamoto, 2001;Sesto et al, 2005) y al hablar sobre la musculatura específica en la cual hemos trabajado en nuestra investigación, los flexores de rodilla, podemos observar que nuestros resultados sobre el dolor muscular coinciden con otros autores (Brockett et al, 2001;Chen, Nosaka & Sacco, 2007;McHugh et al, 2001;Paschalis et al, 2008).…”

“…La mayoría de los estudios han trabajado con grandes volú-menes de ejercicio excéntrico al referirnos al número de repeticiones, que oscilan entre 60 y 250 repeticiones/sesión (Bowers et al, 2004;Brockett et al, 2001;McHugh, 2003;McHugh et al, 2001;Paschalis et al, 2008;Sesto et al, 2005;Yeung & Yeung, 2008), y si nos referimos a la intensidad a la que se han llevado los ejercicios excéntricos, muchos de los estudios se han llevado a cabo a intensidades excéntricas máximas (Barroso et al, 2010;Brockett et al, 2001;Brown et al, 1997;Howatson & van Someren, 2007;Nosaka & Newton, 2002b;Nosaka & Sakamoto, 2001;Paschalis et al, 2008). Entre los estudios que han trabajado ejercicios excéntricos con baja intensidad respecto al nuestro encontramos la investigación de Chen et al (2011).…”

Factors Influencing Proprioception: What do They Reveal?

“…Fatigue is defined as an exercise-induced reduction in the ability of a muscle to generate force or power due to peripheral and/or central factors, related with an increase in perceived exertion, which can be defined as the intensity of subjective effort, strain, discomfort or fatigue sensation that one feels during exercise (Gandevia, 2001). The effects of exercise-induced muscle fatigue on joint proprioception have been extensively investigated in the last decades (Allen & Proske, 2006;Brockett, et al, 1997;Carpenter, et al, 1998;Forestier & Bonnetblanc, 2006;Forestier, Teasdale, & Nougier, 2002;Givoni, Pham, Allen, & Proske, 2007;Ju, Wang, & Cheng, 2010;Lattanzio, Petrella, Sproule, & Fowler, 1997;Lee, Liau, Cheng, Tan, & Shih, 2003;Miura, et al, 2004;Myers, Guskiewicz, Schneider, & Prentice, 1999;Paschalis, et al, 2008;Paschalis, et al, 2007;Ribeiro, Santos, Gonçalves, & Oliveira, 2008;Ribeiro, Venâncio, Quintas, & Oliveira, 2011;Saxton, et al, 1995;Skinner, et al, 1986;Torres, et al, 2010;Tripp, et al, 2004;Vila-Cha, et al, 2011;Walsh, Hesse, Morgan, & Proske, 2004) (Table 4). The majority of studies investigating the effects of exercise-induced fatigue on proprioception have been conducted in the knee joint.…”

The Effects of Eccentric Exercise on Muscle Damage and Blood Redox Status in Men and Women

“…However, lengthening the muscle during contraction may lead to muscle damage [1,2] and is characterized by sustained loss of range of motion [3,4] as well as the development of delayed onset muscle soreness (DOMS) [2]. These changes typically peak at 1-3 days after unaccustomed exercise and subside 4-7 days after exercise [5,6].…”