The objective strain criteria (MVC) in the shoulders and
arm-systems, represented in Figure 1 and (Table 3) show
changes in the MVC before-after tests that are opposite to
the VAS (lower subjective problems for more loss in power).
The MVC for the Trapezius muscle calls upon almost all MU’s
in a full isometric contraction, by which the muscle fibers
are exhausted within 2 s. The sudden acidosis could not be
fully dissolved before starting the therapy and the residue
Figure 1 Change of muscle capacity test EMG Pre and Post
massage treatment (microvolts) in %.
(sustaining fatigue) will affect the evolution in the post MVC
test. The MVC as an assessment factor can be questioned
for the assessment of massage-efficiency because MVC
could be affected by other factors than the ‘massagerelated’
method, such as some private inter- and intraindividual
differences e.g., the left- or right-hand
preferences.