{"action":"closed","issue":{"url":"https://api.github.com/repos/MaartenAfschrift/MetabolicEnergy_Simulation/issues/2","repository_url":"https://api.github.com/repos/MaartenAfschrift/MetabolicEnergy_Simulation","labels_url":"https://api.github.com/repos/MaartenAfschrift/MetabolicEnergy_Simulation/issues/2/labels{/name}","comments_url":"https://api.github.com/repos/MaartenAfschrift/MetabolicEnergy_Simulation/issues/2/comments","events_url":"https://api.github.com/repos/MaartenAfschrift/MetabolicEnergy_Simulation/issues/2/events","html_url":"https://github.com/MaartenAfschrift/MetabolicEnergy_Simulation/issues/2","id":297558024,"number":2,"title":"vMtilde in Umberger model is vM/lMopt","user":{"login":"antoinefalisse","id":19328993,"avatar_url":"https://avatars1.githubusercontent.com/u/19328993?v=4","gravatar_id":"","url":"https://api.github.com/users/antoinefalisse","html_url":"https://github.com/antoinefalisse","followers_url":"https://api.github.com/users/antoinefalisse/followers","following_url":"https://api.github.com/users/antoinefalisse/following{/other_user}","gists_url":"https://api.github.com/users/antoinefalisse/gists{/gist_id}","starred_url":"https://api.github.com/users/antoinefalisse/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/antoinefalisse/subscriptions","organizations_url":"https://api.github.com/users/antoinefalisse/orgs","repos_url":"https://api.github.com/users/antoinefalisse/repos","events_url":"https://api.github.com/users/antoinefalisse/events{/privacy}","received_events_url":"https://api.github.com/users/antoinefalisse/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-02-15T18:56:03Z","updated_at":"2018-04-11T08:33:51Z","closed_at":"2018-04-11T08:33:51Z","author_association":"COLLABORATOR","body":"@MaartenAfschrift, @TDlb \r\nIn the Umberger model, `vMtilde = vM/lMopt` and not `vMtilde = vM/vMax`.\r\nThis is described [here](https://github.com/opensim-org/opensim-core/blob/master/OpenSim/Simulation/Model/Umberger2010MuscleMetabolicsProbe.cpp#L284).\r\nIn the example, this is therefore not correct to pass `vMtilde `as calculated in `FiberVelocity_Ftilde` as an argument of `ComputeMetabolicEnergy_Umberger2003`. You could replace this by:\r\n\r\n```\r\nvMtildeUmb = vM./auxdata.params(2,:);\r\n[energy_total,energy_am,energy_sl,energy_mech] = ComputeMetabolicEnergy_Umberger2003(MExcitation, MActivation,...\r\n        lMtilde,vMtildeUmb,vM,TForce,MuscleMass,TwitchRatio,10,FMltilde);\r\n```"}}
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