Movement Phases
– The approach
– The backswing
– Support foot plant
– Foot-ball contact
– Follow through
Figure 1. The kicking action (Lees & Nolan, 1998) Secondary questions to guide research
What biomechanical principles are involved to produce initial force on the ball? – Angular velocity of lower limbs
What are important principles to consider with foot-ball contact? Coefficient of restitution
What role does the braking impulse of the supporting leg play in producing maximum velocity on the kick?
The Approach: In this phase it is common for players to ensure they have a comfortable 2-4 step arc run up with a starting 45° angle from where the players stands at the beginning to the position of the ball. Power in the kick is generated during this phase with players increasing momentum and the transfer of that end on the length of the final step into the planting foot, which is placed at the side, slightly behind, the stationary ball. To the extent of 1.60m, the greater the step the greater the power transferred on the ball as
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These were found to be angular velocity, coefficient of restitution, and ground reaction force. For coaches and teachers to understand and analyse these principles within the context of their own sport or class would act important for improvement in results when passing it to the students or team. With athletes wanting to improve performance and power through their kicking leg in order for them to score, these principles would be in interest to them to do so professionally. For physical educators this knowledge would be important in relation to what needs to be taught to students in the senior years of school, where they will encounter biomechanics. Using the information discussed teachers can pick a sport to pull apart and analyse each principle that is involved In that