TY  - JOUR
AU  - Furuna, Taketo
A2  - Furuna, Taketo
A2  - Nagasaki, Hiroshi
DB  - BISp
DP  - BISp
KW  - Bewegungsausführung
KW  - Bewegungsebene
KW  - Bewegungskoordination
KW  - Bewegungspräzision
KW  - Biomechanik
KW  - Gelenkbewegung
KW  - Kinematik
KW  - Leistungsniveau
KW  - Lichtspuraufnahme
KW  - Modell
KW  - Validität
LA  - eng
TI  - Trajectory formation of vertical arm movements through a via-point: a limit of validity of the minimum-jerk model
TT  - Entwicklung der Bewegungsbahn vertikaler Armbewegungen durch einen Hilfspunkt: Eine Validitaetsbegrenzung fuer das Modell der Minimalabweichungen
PY  - 1993
N2  - The minimum-jerk model predicts the smoothest trajectory for a class of human movements and so provides us with a kinematic measurement of skilled motor performance. To establish the limits of the models validity, the predicted and experimentally defined movement trajectories and the joint coordination were compared in two-joint arm movements, bringing the hand from the initial position to the final position through a specified point (a via-point). Kinematic data of the movements were obtained through the SELSPOT system. The movement path, tangential velocity, and coordinated change in positions of the shoulder and elbow joints evidently deviated from those predicted by the model. These results suggest that the minimum-jerk model is not valid for movements under extreme conditions which are highly dependent on musculoskeletal dynamics. Verf.-Referat
SP  - S. 875-884
SN  - 0031-5125
JO  - Perceptual and motor skills
IS  - 3; 1
VL  - 76
M3  - Gedruckte Ressource
ID  - PU199309066525
ER  -