Case Study on The Optimum Angle of Parachute Landing between Professional and Amateur Parachutist in the Malaysian Army
This paper aims to determine an optimum angle to be adopted during a parachute landing fall (PLF). There are two phases in PLF technique, the first phase is on feet strike and the second phase is by rolling the body as landed on the ground. Thus, the first phase of the PLF technique will be discussed in this paper will be sagittal plane only. Parachute landing was one activity that can cause injuries on the military. There were limited study conducted on the angle of every segment body which could be a tool to enhance landing procedure. The angles involved in this study covers the shoulder, hip, knee, and ankle joint angle. The objective of this paper to determine the optimum angle while landing by comparing the angle adopted between a professional with an amateur paratrooper. Hence, the recommended results might improve the procedure and reduce injuries during a parachute landing. The angle data is collected from a professional and an amateur paratrooper with three trials and the video is digitizing by using Quintic Biomechanics Software. The graph indicates that there is a difference in angles taken by professional and amateur paratroopers. From the t-test it shows that p-value was p<0.05, there is no difference between the means and a significant difference does exist between the angle of professional and amateur paratroopers. This proof that the angle of each body segment involves plays an important role in preventing injury during a parachute landing. Applying wrong technique will cause the injuries especially in the ankle part.
Index terms - Angle body segment, PLF technique, Parachute static umbrella.