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.
Like epoch, in English it originally meant the starting point of an age; meaning system of chronological notation is c.1640s; that of historical period is from 1741, e.g. the U.S. Era of Good Feeling (which was anything but) in reference to the Monroe Administration (1817-24), attested from 1817.