摘要：This inclusion considers the use and possible misuse of the terms ''Concentric and Eccentric'' in three possible contexts: first, the origin of terms; second, different approaches; and third, the possible uses. To the best of our knowledge, twenty- six articles [i.e.(Barstow et al., 2002)] have been published in Journal of Sports Science and Medicine misusing the term “concentric/eccentric exercise ”while nine [i.e.(Coombs and Garbutt, 2002)] articles have used the terms correctly. The purpose of this letter is to foster the use of the terminology 'positive/negative work' together with 'concentric/eccentric contraction' to ease references search (i.e., through key words) and comprehension.
