75% of original size (was 671x19) - Click to enlarge75% of original size (was 671x19) - Click to enlarge
I am  a newbie to ca4. I have been trying out rigging and experimenting with motions. I noticed that some motions for my character always ends up making the joints rounded as opposed to a g3 360 character martha . She always has her limbs like they should be and doesnt come off as goofy. Please advice if this can be achieved with my character . Thank you 

I solved it myself. For anybody wondering , you have to make the arm into two parts fore arm and arm instead of just one arm layer. same with legs. 
if you have one layer for an entire arm or a leg then the motion bends the limb in a round manner. cheers

Thank you for coming back with the fix.  It's good to see solutions.

Nancy kg6jji