A lot of players try to create lag by over-setting wrists and pulling down on the club, creating poor consistency and sometimes even hands and fingers coming off the club.
But not all lag is created equal.
HackMotion sensor’s wrist data shows that there is more than one type of lag depending on the amount of wrist extension (cupping) you have in your lead wrist.
In this video Monte Scheinblum quickly explains the anatomical wrist terms.
HackMotion data shows that tour players during downswing are often moving towards lead wrist flexion (bowing) and ulnar deviation (unhinging).
A lot of players think that if you are not holding on to the lag as long as you can you are “casting”, but that is not always the case if you are also rotating your body correctly.
Players who try to create more lag by too mucg extending (cupping) the lead wrist will struggle with controlling the clubface.
HackMotion Graph view is an excellent way of analyzing wrist motion during the transition phase. Green dotted line is tour player’s wrist extension and solid green line is typical amateur’s wrist extension pattern.
Starting from the top of the backswing the amateur typically increases the extension (cupping) in his lead wrist – the green line goes “up”.
The tour players are better at keeping the wrist extension flat and then gradually flexing (bowing) the wrist until impact.
Even though both players arrived to a similar position at impact the pro will do it more consistently and with better control of the clubface.
A great way to train the wrist motion during transition is using biofeedback.
Step 1: Take a swing and measure your wrist extension during transition. For example, you find that you are extending the wrist from 20 to 30 degrees during the transition.
Step 2: Select the biofeedback range which you wish to have during transition phase, for instance 0-20 degrees and get real-time feedback when you are repeating the motion correctly.
Take a look at this video of a tour player from LET working with HackMotion biofeedback.
Take a look at this video from Athletic Motion Golf coaches explaining how they use HackMotion to measure different types of lag.