In order to investigate the effects of a test subject’s arm length on the distance a birdie can travel, we tested 4 different test subjects all with a variety of arm lengths. The 4 lengths were, 121cm (Kiwi), 126cm (Noa), 127cm (Andre), 133cm (Shoichi). We had 3 trials so the data would become more reliable and accurate by creating an average. Also, we decided to exclude anomalies in which were completely off compared to other trials. We then averaged the 3 results:
The data above is not correlated and for Andre, his distance was the shortest, despite his arm+racket length being the second longest.
First, here is the video from Kiwi:
Second, here is the video from Noa:
Third, here is the video from Andre:
Last, here is the video from Shoichi:
In general, according to our experiment, and a presentation by Gabriel Vargas, the length of the arm affects the distance the birdie travels with a positive correlation. This means the longer your arm, the further the birdie will travel. When an experiment takes place, there will always be flaws. We tried to keep as many variables the same. We used the same racket and hit from the same place. However, we could’ve kept more variables the same. We should’ve used the same birdies and hit with more consistency by keeping the feet in the same place and using the same components of the arm for example the fore arm and shoulders. We also think that the experience level and the muscle power that each test subject had could change the distance the birdies traveled. The follow through and the coordination of the levers in the arm also create a bigger impact on the shot and how far it can travel. Lastly, the contraction and extension of the different components and muscles of the arm can create clear differences.