Hybrid mode: weight parameter estimation

Provides an easy to use toolbox, compatible with OpenSim, for the estimation of the human lower extremity muscle and joint dynamics.
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User avatar
Zakia Hussain
Posts: 37
Joined: Sun Dec 26, 2021 10:44 pm

Hybrid mode: weight parameter estimation

Post by Zakia Hussain » Wed Mar 15, 2023 12:05 am

Hi everyone

No idea if i will get a response on this forum but anyway m posting it.

Are there any tools/code available to determine the "weight" parameters for hybrid mode in accordance with https://www.sciencedirect.com/science/a ... 9014005284?


Thank you

User avatar
Sierra Foley
Posts: 4
Joined: Sun Sep 18, 2022 7:00 pm

Re: Hybrid mode: weight parameter estimation

Post by Sierra Foley » Wed Aug 16, 2023 7:51 am

I tried creating an XML file based off the user manual but kept receiving the error implementation not available yet. It appears others had this issue and in another forum post, Claudio posted the sample hybrid XML file where it replaces alpha, beta, and gamma with the weights you mention. Did you ever have any luck getting hybrid mode to run with CEINMS? With the below XML, I am still receiving the error implementation not available yet. Verify your XML configuration file.

Code: Select all

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<execution xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="execution.xsd">
  <NMSmodel>
     <type>
        <hybrid>
		<synthMTUs weight ="10">
					vas_int_r vas_lat_r semiten_r bifemsh_r per_tert_r
					vas_int_l vas_lat_l semiten_l bifemsh_l per_tert_l
					add_brev_l add_brev_r add_long_l add_long_r 
					add_mag1_l add_mag2_l add_mag3_l add_mag1_r add_mag2_r add_mag3_r
					ext_dig_l ext_dig_r ext_hal_l ext_hal_r flex_dig_l flex_dig_r flex_hal_l flex_hal_r
					glut_min1_l glut_min1_r grac_l grac_r iliacus_l iliacus_r
					lat_gas_l lat_gas_r pect_l pect_r per_brev_l per_brev_r per_long_l per_long_r
					per_tert_l per_tert_r psoas_l psoas_r sar_l sar_r tfl_l tfl_r tib_post_l tib_post_r
		</synthMTUs>
		<adjustMTUs weight="20">
					vas_med_r rect_fem_r semimem_r bifemlh_r tib_ant_r med_gas_r soleus_r glut_med1_r
					vas_med_l rect_fem_l semimem_l bifemlh_l tib_ant_l med_gas_l soleus_l glut_med1_l
		</adjustMTUs>
		</hybrid>
     </type>

     <tendon>
          <equilibriumElastic/>
     </tendon>

     <activation>
          <exponential/>
     </activation>
  </NMSmodel>

  <offline/>


  <elaboratedDoFs>
  </elaboratedDoFs>

</execution>

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