Bodykinematics acceleration

[Sharmita Dey]

Hello everyone,

I am working with the acceleration file of the bodykinematics section in the Analyze tool of Opensim 3.3. The acceleration values that I get are different from that of when I take the double derivative myself of the position file values. I am comparing the linear acceleration of the tibia_r_X. However,the velocity curves align.

Please throw some light on this.

[Dimitar Stanev]

This post may be of relevance to your question.

viewtopicPhpbb.php?f=91&t=9761&p=0&star ... 44229a4fbb

[Sharmita Dey]

Hello Dimitar,

Thank you. Yes, this is relevant. I would like to ask one more thing. In this case, if I take the derivative of the velocity curve to get the acceleration values, would it be correct?

Thanks and Regards
Sharmita Dey

[Dimitar Stanev]

Yes you can do that.