01 / BASESupport enables expression.
Observe load acceptance, contact, and trunk organization. Then observe how the executing side uses that support.
Candidate observations: Load and reaction forces; timing; support stability.
02 / ANCHORExpression depends on alignment.
Observe the intended target and the coordination of the executing side with the support. Do not treat the hand as separate from the rest of the action.
Candidate observations: Segment timing; endpoint accuracy; consistency.
03 / INNER GRIPPrecision needs support.
Use the radial-hand and inner-foot cues to direct attention. Compare the same target task in both configurations.
Candidate observations: Contact distribution; release direction; task error.
04 / OUTER GRIPPower needs direction.
Observe protection, bracing, and force distribution in the whole action. Do not assume a digit or nerve performs only one function.
Candidate observations: Contact pressure; force control; task-specific muscle activity.
05 / AMBI CURVETransfer connects the roles.
Trace the coordination from support through pelvis and trunk toward expression. Reverse the configuration and compare.
Candidate observations: Joint trajectories; relative timing; path curvature.
06 / DYNAMIC BALANCEThe emphasis changes with the task.
Study how support and execution complement each other during a change in direction, demand, or role.
Candidate observations: Switching cost; recovery; coordination under changing constraints.