27.According to a dynamical systems theory, the muscles and joints : 2106757
27.According to a dynamical systems theory, the muscles and joints that act together to enable a person to reach and grasp a cup are known as a ________.
28.According to the dynamical systems theory, walking and running represent two distinct ________ states of coordination.
29.You perform a four-component movement in 10 sec, and then in 20 sec. If relative time is invariant, and component 1 takes 2.5 sec for the 10-sec movement time, component 1 would require ______ sec for the 20-sec movement time.
30.According to the perception-action coupling literature, the reciprocal fit between the characteristics of a person and the characteristics of the environment that permit specific actions, such as stairs having the physical characteristics to permit stair climbing, are referred to as _____________.