The m value in this case, taken from the acceleration log plot is 0.59. This is quite different to the n
value for the swing speed relationship, but the relationship is far more suitable for a multisport analysis.
There is still scatter in the data when using the swing acceleration but the general fit is better than the
previous plot. Ice hockey is one of the notable points to sit off the line, which is due to the unusually high
acceleration. This could be because in the slap shot in ice hockey, the player has one hand part way down
the stick which can apply an extra torque to the stick. Conversely tenpin bowling has a very low
acceleration, which could be due to the fact the player has to hold a large mass with just their finger tips
and a sudden acceleration could result in dropping the ball.
4. Conclusion
When considering multiple sports it is not appropriate to use the swing speed for analysis, it is the
swing acceleration which should be considered. The data suggests that there is a global trend between the
swing weight and swing acceleration of implements in different sports. However, more work is required
to confirm and validate this relationship and it may be easier to analyse each sport individually then
compare the outcomes at a later point