User's Manual

Document MV0319P.N
© Xsens Technologies B.V.
MVN User Manual
116
will move with segment T8 which is measured with the MT of the sternum. MVN does not measure the
clavicle and is undefined in MVN.
19.7.5 Upper Arm (Humerus): Segment 9 Right and Segment 13 Left
There are two segment coordinate systems described in ISB. The system described below is option 1.
MVN
ISB
[
iii
]
O
jRightUpperArm GH
jLeftUpperArm GH
GH
X
Sagittal plane
Pointing forward
Line perp. Plane EL-EM-GH
Pointing forward
Y
Right: jRightElbow to jRightShoulder
Left: jLeftElbow to jLeftShoulder
Line connecting GH to mid point EL-
EM
Pointing to GH
Z
Perp. to X and Y
Pointing to the right
Line perp. Y and Z
Pointing to the right
19.7.6 Forearm (Radius/Ulna): Segment 10 Right and Segment 14 Left
There are two segment coordinate system described in ISB. Option 1 is described here.
MVN
ISB
[
iii
]
O
jRightElbow
jLeftElbow
US
X
Pointing forward
Line Perp. plane thru US-RS and
midpoint EL-EM
Pointing forward
Y
Right: jRightWrist to jRightElbow
Left: jLeftWrist to jLeftElbow
Line connecting GH to mid point EL-
EM
Z
Perp. to X and Y
Pointing right
Line perp. X and Y
Note: The joint origin is the midpoint between the epicondyles in MVN.
In the anatomical pose, the hand and forearm are orientated forward