TY  - JOUR
AU  - Herzog, W.
A2  - Herzog, W.
A2  - Binding, P.
DB  - BISp
DP  - BISp
KW  - Biomechanik
KW  - Elektromyographie
KW  - Energie, mechanische
KW  - Kinematik
KW  - Kosten-Nutzen-Analyse
KW  - Modell, biomechanisches
KW  - Muskel, mehrgelenkiger
KW  - Optimierung
LA  - eng
TI  - Effects of replacing 2-joint muscles with energetically equivalent 1-joint muscles on cost-function values of non-linear optimization approaches
TT  - Auswirkungen des Austausches von energetisch gleichwertigen eingelenkigen Muskeln an die Stelle von zweigelenkigen Muskeln auf die Kosten-Funktionswerte bei nichtlinearen Optimierungsversuchen
PY  - 1994
N2  - Static non-linear optimization was used to calculate the forces in muscles and the corresponding cost function values for a two-dimensional musculoskeletal system containing both 1-joint and 2-joint muscles, and an energetically equivalent system containing just 1-joint muscles. Agonistic muscular activity and co-contraction of pairs of antagonistic muscles were present in the general solutions of a system containing multi-joint muscles; such patterns of activity cannot be observed in a system containing just 1-joint muscles. If cost function values are considered to be a measure of some type of physiological effectiveness (as suggested implicitly or explicitly in the literature), than a system containing 2-joint muscles will tend to be more effective than a system containing 1-joint muscles, in situations where the directions of the resultant joint moments are equal. In situations where the direction of the joint moments are opposite, the system containing just 1-joint muscles tends to be more cost effective than the model containing 2-joint muscles.       Verf.-Referat
SP  - S. 569-586
SN  - 0167-9457
JO  - Human movement science
IS  - 5
VL  - 13
M3  - Gedruckte Ressource
ID  - PU199501074899
ER  -