Conclusion Overall , our findings do not support the presence of a secondary loss of strength following an acute muscle injury , and strongly suggest that strength , on average , recovers steadily over the first 3 days post-injury
Background An immediate loss of strength follows virtually all types of muscle injury but there is debate whether the initial strength loss is maximal or if a secondary loss of strength occurs during the first 3 days post-injury .
Objective The objective of this analysis was to conduct a systematic review and meta- analysis of the research literature to determine if a secondary loss of strength occurs after an injurious initiating event .
Acute adaptation to low volume eccentric exercise.
PURPOSE Many symptoms of eccentric muscle damage can be substantially reduced if a similar eccentric bout is repeated within several weeks of the initial bout . The purpose of this study was to determine whether a nondamaging , low repetition , low volume eccentric exercise bout could also provide a protective/adaptive effect . METHODS Subjects were assigned to a control ( CON ) , eccentric exercise ( ECC ) , or low volume familiarized eccentric exercise group ( LV+ECC ) . Before the study , the LV+ECC group performed six maximal eccentric contractions during two familiarization sessions . The main eccentric bout targeted the elbow flexor muscle group and consisted of 36 maximal eccentric contractions . Muscle soreness , upper arm girth , elbow angle , creatine kinase activity , isometric torque , and concentric and eccentric torque at 0.52 and 3.14 rad.s-1 were assessed 0 , 1 , 2 , 3 , 4 , 7 , and 10 d postexercise . RESULTS No evidence of muscle damage was observed as a result of the low volume eccentric bouts . Nevertheless , with the exception of muscle soreness and concentric torque , all variables recovered more rapidly in the LV+ECC group ( P < 0.05 ) . CONCLUSION Adaptation to eccentric exercise can occur in the absence of significant muscle damage . Exposure to a small number of nondamaging eccentric contractions can significantly improve recovery after a subsequent damaging eccentric bout . Furthermore , this adaptation appears to be mode-specific and not applicable to concentric contractions
Conclusion Overall , our findings do not support the presence of a secondary loss of strength following an acute muscle injury , and strongly suggest that strength , on average , recovers steadily over the first 3 days post-injury
Background An immediate loss of strength follows virtually all types of muscle injury but there is debate whether the initial strength loss is maximal or if a secondary loss of strength occurs during the first 3 days post-injury .
Objective The objective of this analysis was to conduct a systematic review and meta- analysis of the research literature to determine if a secondary loss of strength occurs after an injurious initiating event .