Re: Re: Re: Re: Re: THT
Good stuff !
Another important factor is how the torso is loaded to drive the "transfer"/compound pendulum.
I think Cheetham's work is important here in terms of "x-factor STRETCH in the downswing" which is a refinement of the xfcator concept AND his "kinematic" (just measuring angular velocity/sequence of segments, not addressing the forces/kinetics that produce the summation of velocity).
Another important motionanalysis measure is the efficiency of "speed gains" from one segment to the next.
This post has a brief summary of average Cheetham measures for his MLB hitter database:
and more on efficiency of "speed gains"
difference in separation/position for in vs out:
original x-factor stretch article summary:
More recent kinenatic sequence comparison of skilled vs less skilled golf swing(Cheetham concentrating on golf now, see for example titleist research institute
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