HARP line tool

Select a vector (orange here) and check it vs the environment. Horizontal progression of both ends and vertical orientation and clearance ( below) and vertical rise above...

HARP can be followed from neck pubis heel in frontal view to dissect if sway is pathologic (against energy) or functional (source of clearance of stiff swing leg.

Harp shoulder, bat grip & bat end? Hand to mouth? Reach to object? It is time for your imagination to take over here.....