So it seems to me that seeing a physical therapist, a massage therapist, or a kinesiology therapist would be a more effective way to find useful help than seeing a chiropractor. After all, none of the above people are going to try to treat your non-existent subluxations.
In baseball statistics, earned run average (ERA) is the mean of earned runs given up by a pitcher per nine innings pitched (i.e. the traditional length of a game).It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine.Runs resulting from defensive errors (including pitchers' defensive errors) are recorded as unearned runs and are not used to determine ERA.t is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine. Runs resulting from defensive errors (including pitchers' defensive errors) are recorded as unearned runs and are not used to determine ERA.
3. (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched. Familiarity information: ERA used as a noun is uncommon.ypernyms (era is a kind of...): geologic time; geological time (the time of the physical formation and development of the earth (especially prior to human history)). Meronyms (parts of era): geological period; period (a unit of geological time during which a system of rocks formed).