ORIGINALRESEARCHpublished:11February2020doi:10.3389/frobt.2020.00013HumanLowerLimbJointBiomechanicsinDailyLifeActivities:ALiteratureBasedRequirementAnalysisforAnthropomorphicRobotDesignMartinGrimmer1,AhmedA.Elshamanhory2andPhilippBeckerle3,41LauflaborLocomotionLaboratory,DepartmentofHumanSciences,InstituteofSportsScience,TechnischeUniversitätDarmstadt,Darmstadt,Germany,2MechanicalEngineering,T...