Tying a wushu sash is a bi-manual task with effector (co-)variances that could be analyzed using the concept of the uncontrolled manifold. Variability in this sub-space can be observed in the synchronization of the necessary movements of the two hands. Correlations between the effectors are often attributed to synergies as building blocks to perform such a task, but in the context of OFCT (Optimal feedback controle theory) structured variability emerges naturally from task-dependent feedback control. But... for explaining how this job is done you could also quote something out of
the bible.
Tying a wushu sash is a bi-manual task with effector (co-)variances that could be analyzed using the concept of the uncontrolled manifold. Variability in this sub-space can be observed in the synchronization of the necessary movements of the two hands. Correlations between the effectors are often attributed to synergies as building blocks to perform such a task, but in the context of OFCT (Optimal feedback controle theory) structured variability emerges naturally from task-dependent feedback control. But... for explaining how this job is done you could also quote something out of the bible.