Tweet
Dear Biomch-l readers!
The moments of inertia of the arm are known to be changeable during the
movement due to the muscle contractions. But for the forearm there is a
supplementory reason for the change in the moment of inertia which seems to
be much more important, this is the rotation of radius about ulna. Although
usually the forearm is considered as the single rigid body, to take into account
the movements of pronation-supination it should be considered as two
rigid bodies connected by one degree of freedom articulation.
Is there anybody there who knows this kind of models or is aware of
more details about the moment of inertia of the forearm considered as
the single rigid body?
Thank you in advance.
Elena Biryukova,
bir@sms.ccas.msk.su
----------------------------------------------------------------------------
Agnes Roby-Brami
INSERM-CREARE, Neurosciences et modelisation
9 quai St Bernard, 75005 Paris
Phone : (+33) 1 4427 2624
Fax : (+33) 1 4427 3438
email Agnes.Roby-Brami@snv.jussieu.fr
?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ????????????????????ai ##???????????????????????????????????????????????? ?????????????????????????????????????????????????? ??????????????????? aA##]##. ##{ ##? ## ##[ ##E ### ##- ## aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3???
- L ##^ ##s ##? ##? ##? ##? ## ##+ ##F ## aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3???
F _ ##v ##i ##j ## aC3 aC3 aC3+ ##F ## aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3???
?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ??????
The moments of inertia of the arm are known to be changeable during the
movement due to the muscle contractions. But for the forearm there is a
supplementory reason for the change in the moment of inertia which seems to
be much more important, this is the rotation of radius about ulna. Although
usually the forearm is considered as the single rigid body, to take into account
the movements of pronation-supination it should be considered as two
rigid bodies connected by one degree of freedom articulation.
Is there anybody there who knows this kind of models or is aware of
more details about the moment of inertia of the forearm considered as
the single rigid body?
Thank you in advance.
Elena Biryukova,
bir@sms.ccas.msk.su
----------------------------------------------------------------------------
Agnes Roby-Brami
INSERM-CREARE, Neurosciences et modelisation
9 quai St Bernard, 75005 Paris
Phone : (+33) 1 4427 2624
Fax : (+33) 1 4427 3438
email Agnes.Roby-Brami@snv.jussieu.fr
?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ????????????????????ai ##???????????????????????????????????????????????? ?????????????????????????????????????????????????? ??????????????????? aA##]##. ##{ ##? ## ##[ ##E ### ##- ## aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3???
- L ##^ ##s ##? ##? ##? ##? ## ##+ ##F ## aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3???
F _ ##v ##i ##j ## aC3 aC3 aC3+ ##F ## aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3 aC3???
?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ??????