Download Force Summation

Force Summation
The summing of Forces
Force Summation
• As we know, in order to generate momentum
a force must be applied to a body
• An athlete is able to achieve a maximum
velocity or force by the transfer of momentum
through successive body part movements.
Force Summation
Rule 1: Use All Body Segments
To maximise muscular force we want to use as
many body segments as possible.
Force Summation
Rule 2: Stretch Out
Before we begin the sequence of body
movements we should stretch muscles out to
their optimal length to allow muscles to be
contracted with max force.
Force Summation
Rule 3: Sequencing of Body Segments
Generally we move larger muscle groups first and
smaller muscle groups last
Force generated by the larger muscle is groups
passed on to the smaller ones
Force Summation
Rule 4: Timing of Body Segments
To produce max force we need to ensure that
the right body segment is adding to the overall
force at the right time
If timing is out of order movement will lack coordination and force generation is lessened or
lost
Timing of body segments
Force Summation
Rule 5: Full Range of Motion
• We need to move body segments through the
greatest range of motion that we can.
• Greater the range of motion, the higher the
speed of the extremities on release/contact