The objective function is stated as a function of a zeroth order term, first order term (with an epsilon_1 coefficient), and second order term (with an...
Hi Sarah, I think you can find the answers you are looking for in the tutorial on inverse dynamic analysis: http://www.anybodytech.com/76.0.html. Please notice...
Dear support team I want to check the moment arms of some muscle: is there a way to calculate the instantaneous muscle moment arm? The muscle length change in...
Hi Christine Yes it is possible to measure the effective moment arm. This is done by setting the joint velocity to 1, if you then look at at the muscle...
Hi All, I have been working on putting together a single-upper-arm model, following step-by-step the online building block tutorial (except, of course, I was...
Hi Sarah The first warning that you get is not fatal if you get it at load time. It means that one of the points that the muscles passes through is located...
Hi, Thanks for getting back to me so quickly. Unfortunately though, I am still having a hard time with the model. Interestingly enough, when I close out...
Hi Sarah Sorry about your problems.. I think you should try to take it in two steps 1 make sure the kinematics of your model is running 2 solve the muscle...
Hi, I am facing little problems withSTL files in AnyBody. I a musinf STL files to represent the bony surfaces. I have attached muscles to these bones. These...
Hi Kiran The muscles can not wrap directly on an .stl or .anysruf file, this is why they penetrate through the bone. The .stl and .anysurf files are purely for...
Hi, Thanks for the suggestions. Actually the figure size is so large that it couldn't fit in the window. When i scaled the figure it worked fine. Regards, ...
Hi All, My name is Oskar, Im currently working in a motion analysis lab in point pleasant, NJ. We have been doing kinematic studies on a variety of topics. I...
Hello Oskar, and welcome to the group. Please feel free to ask questions here whenever you want. License prices and conditions: I understand that you are in...
Dear group members, There might be some members here who are unaware of the existence of the AnyBody Interest Group. It is a group of people who have signed up...
Hello, I've been trying to reproduce a 3-D sway study using AnyBody and have a little difficulty. The model I'm using is quite simplified for now in that the...
Hello Sunwok, Before going into a long exlanaion, I just want to be sue that you have read this tutorial: http://www.anybodytech.com/57.0.html If not, then it...
Hello, As you pointe out, the model was over-determined. After keeping DoFs and the number of constraints, the kinematic analysis was done without a relaxed...
Hi Sunwook, It sounds like you are missing sufficient boundary conditions. If you just apply the force plata data under the feet, then these forces are most...
Hi, I really thank you for the quick response. As you said, I've been already using AnyReacForce at the pelvis to boudn the model; however, the inverse...
Well, we try to be quick ;-) Anyway, there is only so much we can guess without actually seeing the model. To help you much further, we probably need to have a...
Hi, I have downloaded AnyBody version 2.0 (beta version). I was just wondering if you have documentation for this new version. Thank you. Regards, Kiran Kiran...
Hello Kiran, The documentation is unfortunately not finished yet. The new version is largely backward compatible, so that stuff which worked in the old version...
Hi Sunwook, Thanks for uploading the model. It is great work! I think the matter is quite simple: When you do InverDynamicAnalysis, you are essentially...
First of all, I really thanked you for the response and bearing with me. I guess I was wrong. :) I thought setting Reaction.Type of a joint to be 1 would...
Hi Sunwook I am very sorry that you have got the wrong answer: Setting the reaction.type =1 does mean that the driver will carry the load. I have been looking...
Hello Every body, My name is Lola Danhaive. I'm a engineer student at university of brussels. For my memory, i'm studying human movement and i decide to use ...
Hi Lola, Welcome to the group. I have looked into your problem, and you actually have a very good point. There seems to be an error in the parser of the beta...
I am looking at a hinge joint (elbow), and I understand that there are 5 constraints out of a possible 6 degrees of freedom to allow for flexion/extension...
Hi Sarah, Sorry about the late reply. We are usually quicker, but it is the vacation season, and pretty much the rest of us are headed out for the ISB...
Dear support team As Ifd like to compare the different opimization criteria for the muscle force distribution Ifm trying to understand the different ...
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