Biomedical Engineering Reference
In-Depth Information
Primary movement
Coupled movement
N
= 42
Axial rotation
Flexion/extension
13.86°
% of axial rotation
8.92%
SD 1
1.92° - 13.85%
SD 2
5.19° - 37.45%
Minimum - maximum
2.71° - 27.88°
Lateral bending
21.38°
% of axial rotation
13.76%
SD 1
1.85° - 8.65%
SD 2
8.21° - 38.40%
Minimum - maximum
6.53° - 39.70°
Shoulder axial rotation
4.85°
% of axial rotation
3.12%
SD 1
0.60° - 12.37%
SD 2
2.53° - 52.16%
Minimum - maximum
1.22° - 13.26°
Table 5.3.
Mean ranges of motion (in ° and %), standard deviations
(in ° and %) and minimum and maximum values of coupled movements
withaxial rotation
Even though the orders of magnitude are obtained overall,
it is difficult to compare these results with those in the
literature, since the experimental means and the calculation
methods are different. Moreover, [WAL 96] showed
the influence of head posture on measured amplitudes
of movement of the cervical spine. Nevertheless, these
results show that it is important to distinguish
the involvement of the scapulothoracic complex in the
calculation of the coupled movements in the frontal and
horizontal plane.
