The term trigger point was coined in 1942 by Dr. Janet Travell to describe a clinical finding with the following characteristics: Pain related to a discrete, irritable point in skeletal muscle or fascia, not caused by acute local trauma, inflammation, degeneration, neoplasm or infection.
A fresh alkaline zinc battery can have an open-circuit voltage of 1.6 volts, but an iron-disulfide battery with an open-circuit voltage below 1.7 volts is entirely discharged.
Therefore, a typical alkaline AA battery may start out with an internal resistance of 0.15â¦ but may increase to 0.75â¦ when 90 percent discharged. The following is a list of typical internal resistances for various batteries.