"Human movement begins in the pelvis and spine and not the extremities - the legs and arms" (source - Truth of Kinesiological).
This statement is one of the major pillars of Fluid Tennis.
The strengthis in the center(center of mass), and the speedat the extremities.
Thelimbs-legs,arms,head andneckareusedtheextensionsof thetorsoin space.being naturallydrawnwhen we startedmovingthe center of thebody.
Begin any TennisBeginspecificmovementfrom thecenter (instead oftheExtremities),is abrutalchangeinqualityofmovement,includingthebodypositionin thecontactracket/ballmoment.
When the forceis done fromone end,thechainsareconstrainedin theirmovesmoothly and effectively, while increasing thelikelihood of injury.
Thechain flexibilityandstaticinspiratorybreathingis fundamental toaneffectivecenterlinkends.
In martial artsthe conceptof the strength thatcomes from the centerisoneof the pillars.