Attenuation of eccentric exercise-induced muscle damage conferred by maximal isometric contractions: a mini review

Autor(es)

Lima, Leonardo C. R. ^[1] ; Denadai, Benedito S. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Human Performance Lab, Dept Phys Educ, Biosci Inst, Rio Claro - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: FRONTIERS IN PHYSIOLOGY; v. 6, OCT 27 2015.
• Citações Web of Science: 8

Resumo

Although, beneficial in determined contexts, eccentric exercise induced muscle damage (EIMD) might be unwanted during training regimens, competitions and daily activities. There are a vast number of studies investigating strategies to attenuate EIMD response after damaging exercise bouts. Many of them consist of performing exercises that induce EIMD, consuming supplements or using equipment that are not accessible for most people. It appears that performing maximal isometric contractions (ISOs) 2-4 days prior to damaging bouts promotes significant attenuation of EIMD symptoms that are not related to muscle function. It has been shown that the volume of ISOs, muscle length in which they are performed, and interval between them and the damaging bout influence the magnitude of this protection. In addition, it appears that this protection is not long-lived, lasting no longer than 4 days. Although no particular mechanisms for these adaptations were identified, professionals should consider applying this non-damaging stimulus before submitting their patients to unaccustomed exercised. However, it seems not to be the best option for athletes or relatively trained individuals. Future, studies should focus on establishing if ISOs protect other populations (i.e., trained individuals) or muscle groups (i.e., knee extensors) against EIMD, as well as investigate different mechanisms for ISO-induced protection. (AU)

• Processo FAPESP: 13/23585-4 - Relação entre economia de corrida e força muscular: Análise pelo modelo de dano muscular induzido pela corrida em declive
• Beneficiário: Leonardo Coelho Rabello de Lima
• Modalidade de apoio: Bolsas no Brasil - Doutorado