title: Estimation of tendon slack lengths of quadriceps based on a least squares optimization.
abstract: Based on the force transfer relationship from muscle to tendon, a chart determining a normalized tendon force is developed. The experimental data of knee extension moment obtained at maximum isometric contractions are prepared to characterize one's musculo-tendon properties. An optimization algorithm is introduced, which searches the tendon slack lengths of quadriceps by minimizing the differences of calculated knee extension moment with experimental data. The optimized results which are obtained using various search range limit are summarized and analyzed.
authors.affiliation: Mechatronics Engineering Department of Kangwon National University, Chunchon, Korea. nys@kangwon.ac.kr
authors.forename: Yoonsu
authors.initials: Y
authors.lastname: Nam
authors.forename: Woo Eun
authors.initials: WE
authors.lastname: Lee
authors.forename: Tai Jun
authors.initials: TJ
authors.lastname: Yoon
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D003627:Data Interpretation, Statistical; D055119:Elastic Modulus / Q000502:physiology; D006801:Humans; D016018:Least-Squares Analysis; D008954:Models, Biological; D015233:Models, Statistical; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D013710:Tendons / Q000502:physiology*