2011
DOI: 10.1242/jeb.050112
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Muscle damage and muscle remodeling: no pain, no gain?

Abstract: Skeletal muscle is a dynamic tissue that responds adaptively to both the nature and intensity of muscle use. This study tested the hypothesis that a damaging bout of exercise is pre‐requisite for muscle hypertrophy. Although this hypothesis has been widely accepted, there is surprisingly scant evidence that muscle damage, accompanied by an inflammatory response, is a necessary precursor to muscle hypertrophy. Subjects were divided into two experimental populations: (PT) pre‐trained (n=7) and (NA) naïve (n=7). … Show more

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Cited by 109 publications
(93 citation statements)
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References 41 publications
(35 reference statements)
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“…Participants remained unshod for the mass measurement, which was recorded in kilograms to the nearest tenth. Perception of muscle soreness was assessed using a 10 cm VAS where 0 = no soreness and 10 = worst possible soreness (9). On day one, participants were asked to mark their perception of leg muscular soreness on the VAS.…”
Section: Protocolmentioning
confidence: 99%
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“…Participants remained unshod for the mass measurement, which was recorded in kilograms to the nearest tenth. Perception of muscle soreness was assessed using a 10 cm VAS where 0 = no soreness and 10 = worst possible soreness (9). On day one, participants were asked to mark their perception of leg muscular soreness on the VAS.…”
Section: Protocolmentioning
confidence: 99%
“…While the effects of eccentric training have not been established specifically in persons with iSCI, it has been shown to increase muscle size in those following anterior cruciate ligament repair, younger, and older adults (10,17,25), strength in younger and older adults with and without heart disease (9,17,20,22,25), and aerobic capacity in young and older adults with heart disease (11,18). Further, the lower metabolic cost of ERT may allow individuals with iSCI to perform more work during an exercise session compared to concentrically-based programs (18).…”
Section: Introductionmentioning
confidence: 99%
“…Quanto às alterações fenotípicas estruturais musculares, o aumento significativo da área de secção transversal das fibras musculares encontra-se em conformidade com a literatura (2,15,17,18,27,28) . O ExEx demonstrou ser um potenciador do crescimento das fibras musculares, bastando apenas uma sessão de treino por semana (durante 8 semanas).…”
Section: Análise Estatísticaunclassified
“…Para este parâ-metro foram avaliadas mais de 27500 fibras, um valor bastante superior à média de fibras analisadas noutros trabalhos, permitindo uma melhor caracterização e avaliação de todo o músculo, e, ao mesmo tempo, ultrapassando algumas das limitações que podem ser apontadas à metodologia de outros trabalhos, nomeadamente a da análise insuficiente e não representativa das fibras musculares. Este aumento da área de secção transversal das fibras pode ser explicado pelo incremento do número de sarcómeros em paralelo, isto é, pelo maior número de miofibrilas, situação que ajudará a dissipar a energia através da repartição do stress mecânico por uma maior quantidade de miofibrilas, podendo assim diminuir a possibilidade de dano estrutural e contribuir para a tolerância ao exercício presente em indivíduos treinados (15) . Este processo miogénico é apoiado pelo maior número, estatisticamente significativo, de fibras musculares com presença de núcleos centrais.…”
Section: Análise Estatísticaunclassified
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