Storyboard

Failures in energy transfer occur when the kinetic chain cannot efficiently transport energy from its point of generation (proximal muscles) to the point of application (distal end or implement). The causes include: deficiencies in the rigidity of the central core, which acts as the transmission link between the lower and upper train; incorrect temporal coordination (early or late activation of segments); losses due to soft tissue deformation at transmission points; and dissipation due to excessive muscular coactivation. Negative coupling power (ET_ij < 0) indicates that a segment is absorbing energy from the adjacent one instead of receiving it, which is counterproductive. Putnam's model quantifies these intersegmental transfers. A 20% loss in the kinematic chain reduces distal velocity by ~10%. Core control stiffens the lumbo-pelvic joint, reducing losses in that critical transmission region.

>Model

ID:('ky', 476)

Description

ID:(0, 476)