User's Manual

Document MV0319P.N
© Xsens Technologies B.V.
MVN User Manual
117
19.7.7 Hand: Segment 11 Right and Segment 15 Left
MVN
ISB
[
iii
]
O
jRightWrist
jLeftWrist
ISB defines origins and axes for
each:
Of the 5 Metacarpals
14 phalanges
X
Pointing forward
Y
Top of Hand to jRightWrist/jLeftWrist
Pointing Vertical
Z
Perp. to X and Y
Pointing right
Note: In MVN, the joint center is the midpoint between the styloids.
No metacarpals are measured in MVN.
This description is for the anatomical pose. When the subject stands in the N-pose, X will no longer point
anteriorly, but medially.
19.7.8 Upper Leg (Femur): Segment 16 Right and Segment 20 Left
MVN
ISB
[
ii
]
O
jRightHip/jLeftHip
(Only defined for use of calculating
the hip joint angle):
Coincident with right (or left) hip
center of rotation, coincident with
pelvic center O in neutral
configuration
X
Perpendicular to Y and Z
Pointing forward in sagittal plane
Line perp. to Y- and x-
Pointing anteriorly. (Della Croce et
al.
[iv]
)
Y
Right: jRightKnee to jRightHip
Left: jLeftKnee to jLeftHip
Line joining midpoint between medial
and lateral Fes and the origin.
Pointing cranially
Z
Right: Medial to Lateral
Left: Lateral to Medial
Pointing right
Line perp. to Y-axis lying in plane
defined by origin and two Fes.
Pointing Right.