Exercise-induced muscle damage and the repeated bout effect in the human gastrocnemius muscle

2020 ◽  
Author(s):  
◽  
Patricio Andres Pincheira Miranda
Keyword(s):  
Muscle Damage ◽  
Gastrocnemius Muscle ◽  
Repeated Bout Effect ◽  
Exercise Induced ◽  
Repeated Bout

scholarly journals Repeated Bout Effect Was More Expressed in Young Adult Males Than in Elderly Males and Boys

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Giedrius Gorianovas ◽  
Albertas Skurvydas ◽  
Vytautas Streckis ◽  
Marius Brazaitis ◽  
Sigitas Kamandulis ◽  
...  
Keyword(s):  
Creatine Kinase ◽  
Muscle Damage ◽  
Muscle Soreness ◽  
Repeated Bout Effect ◽  
Adult Males ◽  
Elderly Males ◽  
Dependent Variables ◽  
Drop Jumps ◽  
Exercise Induced ◽  
Repeated Bout

This study investigated possible differences using the same stretch-shortening exercise (SSE) protocol on generally accepted monitoring markers (dependent variables: changes in creatine kinase, muscle soreness, and voluntary and electrically evoked torque) in males across three lifespan stages (childhood versus adulthood versus old age). The protocol consisted of 100 intermittent (30 s interval between jumps) drop jumps to determine the repeated bout effect (RBE) (first and second bouts performed at a 2-week interval). The results showed that indirect symptoms of exercise-induced muscle damage after SSE were more expressed in adult males than in boys and elderly males, suggesting that the muscles of boys and elderly males are more resistant to exercise-induced damage than those of adult males. RBE was more pronounced in adult males than in boys and elderly males, suggesting that the muscles of boys and elderly males are less adaptive to exercise-induced muscle damage than those of adult males.

Exercise-Induced Muscle Damage and Potential Mechanisms for the Repeated Bout Effect

1999 ◽  
Vol 27 (3) ◽  
pp. 157-170 ◽  
Author(s):  
Malachy P. McHugh ◽  
Declan A.J. Connolly ◽  
Roger G. Eston ◽  
Gilbert W. Gleim
Keyword(s):  
Muscle Damage ◽  
Repeated Bout Effect ◽  
Exercise Induced ◽  
Repeated Bout

scholarly journals Human alpha-actinin-3 genotype association with exercise-induced muscle damage and the repeated-bout effect

2012 ◽  
Vol 37 (6) ◽  
pp. 1038-1046 ◽  
Author(s):  
Tomas Venckunas ◽  
Albertas Skurvydas ◽  
Marius Brazaitis ◽  
Sigitas Kamandulis ◽  
Audrius Snieckus ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Knee Extension ◽  
Repeated Bout Effect ◽  
Drop Jumps ◽  
Jumping Exercise ◽  
Exercise Induced ◽  
Torque Values ◽  
The Impact ◽  
Repeated Bout

Alpha-actinin-3 (ACTN3) is an integral part of the Z line of the sarcomere. The ACTN3 R577X (rs1815739) polymorphism determines the presence or absence of functional ACTN3, which may influence the extent of exercise-induced muscle damage. This study aimed to compare the impact of, and recovery from, muscle-damaging eccentric exercise on subjects with or without functional ACTN3. Seventeen young men (20–33 years old), homozygous for the R (n = 9) or X (n = 8) alleles, performed two bouts of stretch–shortening exercise (50 drop jumps) two weeks apart. Muscle soreness, plasma creatine kinase (CK) activity, jump height, maximal voluntary isometric torque (MVC), peak concentric isokinetic torque (IT), and electrically stimulated knee extension torques at 20 and 100 Hz were measured at baseline and at a number of time points up to 14 days after each bout. There were no significant baseline differences between the groups. However, significant time point × genotype interactions were observed for MVC (p = 0.021) and IT (p = 0.011) for the immediate effect of eccentric exercise in bout 1. The RR group showed greater voluntary force decrements (RR vs. XX: MVC, –33.3% vs. –24.5%; IT, –35.9% vs. –23.2%) and slower recovery. A repeated-bout effect was clearly observed, but there were no differences by genotype group. The ACTN3 genotype modulates the response of muscle function to plyometric jumping exercise, although the differences are modest. The ACTN3 genotype does not influence the clearly observed repeated-bout effect; however, XX homozygotes recover baseline voluntary torque values faster and thus may be able to undertake more frequent training sesssions.

Changes in urinary titin N-terminal fragments as a biomarker of exercise-induced muscle damage in the repeated bout effect

2020 ◽  
Vol 23 (6) ◽  
pp. 536-540
Author(s):  
Shota Yamaguchi ◽  
Katsuhiko Suzuki ◽  
Kazue Kanda ◽  
Takayuki Inami ◽  
Junichi Okada
Keyword(s):  
Muscle Damage ◽  
Repeated Bout Effect ◽  
Exercise Induced ◽  
Repeated Bout

Circulating Concentration of Chemical Elements During Exercise-Induced Muscle Damage and the Repeated Bout Effect

2021 ◽  
Author(s):  
Silas Seolin Dias ◽  
Martim Gomes Weber ◽  
Susana Padoin ◽  
Avacir Casanova Andrello ◽  
Eduardo Inocente Jussiani ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Chemical Elements ◽  
Repeated Bout Effect ◽  
Exercise Induced ◽  
Repeated Bout

scholarly journals Influence of Maturation Status on Eccentric Exercise-Induced Muscle Damage and the Repeated Bout Effect in Females

2018 ◽  
Vol 8 ◽  
Author(s):  
Ming-Ju Lin ◽  
Kazunori Nosaka ◽  
Chih-Chiao Ho ◽  
Hsin-Lian Chen ◽  
Kuo-Wei Tseng ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Repeated Bout Effect ◽  
Exercise Induced ◽  
Repeated Bout
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