True. This is a type of strength training exercise with which
the joint angle and muscle length do not change during the contraction of the
muscles. These exercises are done in static positions where muscles work
against an immovable object. The amount of pressure applied to the particular
weight is the same amount throughout the whole contraction. An example of this
is holding in place a bench press where a further push can no longer be applied
once the arms are already fully extended.