mandrin
New
golfspike,Mandrin
Can you clarify your position on the kinetic chain for me..... as i understand it a section slows for the transfer of energy to speed up the next section and so on???
In some other forums i read where people with "qualifications" say this does not happen with the pivot and it does not brake at all particulary when they are discussing Ben Hogan's swing. The reasoning is that a trebuchet effect in his swing ( catapult but you would know this)
I find this hard to be factual..... but i simply don't know...Possible for you to give me the thruth?
When using the expression ‘kinetic chain’ one is referring to the transfer of kinetic energy between linked moving objects.
Change in kinetic energy is equal to work done. Work done is due to the presence of both internal and external forces/torques.
External torques due to contraction of muscles across the joints and internal forces due to the inertial reaction forces acting at the joints.
The golfer/club ensemble forms a kinetic chain and the aim should be to transform the generated kinetic energy in the downswing efficiently into clubhead speed.
Once the masses are set into motion they exert mutually internal inertial reaction forces which, while creating no net kinetic energy, do redistribute energy.
This is the essential feature of a kinetic chain, this redistribution of the kinetic energy form one mass to another due to passive internal inertial forces.
In a downswing any energy flowing to the clubhead due to this redistribution augments the efficiency of the conversion of effort employed into clubhead speed.
A mass can only transfer its kinetic energy to another by slowing down. For instance, arms slowing down prior to impact allow some of its energy to flow to the clubhead.
The trebuchet is equivalent to a double pendulum golfer but standing on his head. Notice how the sling dramatically slows down the driving beam when they are getting aligned. This is amplified as the driving force reduces simultaneously. This action is quite similar to that occurring in golf down stroke.