### Present Remotely

Send the link below via email or IM

• Invited audience members will follow you as you navigate and present
• People invited to a presentation do not need a Prezi account
• This link expires 10 minutes after you close the presentation

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

You can change this under Settings & Account at any time.

# The Biomechanics of the Fosbury Flop

No description
by

on 22 June 2014

Report abuse

#### Transcript of The Biomechanics of the Fosbury Flop

The Biomechanics of High Jump- The Fosbury Flop

Force and Motion
The run up is essentially the most important aspect
J Shaped Approach
This approach minimises air resistance which is the resistance exerted by any fluid including air on an object moving through it (Amezdroz, G et al. 2010).
Biomechanics is comprised of the laws of mechanics and physics and is applied to the human body to study the internal and external forces (Mackenzie, 2004).
The Run Up
Force is defined as an action that is applied to an object, causing it to start or stop or cause changes in the movement of the object, is applied to the ground, an equal and opposite reaction force is produced, this is known as linear motion (Amezdroz, G et al. 2010).
(abcteach.com, 2014)
Professional Technique
My Technique
Dominant foot behind
Jumping from right hand side
Maximum force exerted on ground
Side of Approach
Right foot placed behind my body
Jumping from right hand side
Inhibits force produced
Momentum is defined as a quantity of motion possessed by a body (Amezdroz, G et al, 2010)
The Transition Between the Run Up and
Take-Off
The Take-Off Phase
“The take-off phase is defined as the period of time between the instant when the take-off foot touches the ground and the instant when it loses contact with the ground” (Dapena, J. 1992).
Levers
A lever is a body segment that rotates around an axis and the lever that is most applicable to the fosbury flop is the first-class lever in which the axis is located between the effort and the resistance force (Amezdroz, G et al, 2010).
Centre of Gravity
Low centre of gravity
Rotational Motion
Professional v My Technique
The Flight
High centre of gravity
Rotational motion cannot be obtained after the athlete leaves the ground (Dapena, J. 1992) and occurs when an action is performed and an equal reaction is produced around a joint to create momentum (Amezdroz, G et al, 2010).
Rotation of hips, back and shoulders around the pelvis
Drill
Professional
Arched back
Hands alongside body
Professional
Centre of gravity falls below the athlete and the bar
Flick of the lower legs whilst arching back
Professional
My Technique
Knocking of the bar during flight
My Technique
Landed on my back
Unable to complete a backwards somersault
Analysis of the Run Up
Professional
Running on the balls of her feet
Long, relaxed strides
Momentum
My Technique
Flat footed

Under stride

Lack of momentum
Analysis of the Transition Stage
Professional
Almost straight take-off leg
Leaning away from the bar
My Technique
No lowering of the hips
No leg extension
Leaning into the bar
The Take-Off Phase
Professional
Leg extension
Little knee flexion
Knee drive
Arm drive
My Technique
Insufficient knee and arm drives
Cassy. (2013).
VisualPharm. (2013).
Mackenzie, B. (2003).
Krider, D. (2013).
Splung.com. (2014).
Rubenstein, B. (2011).
Crossley, S. (2014).
Leite, W. (2013).
Burns, M. (2013).
Leite, W. (2013).
Dapena, J. (1995).
Star Videos
Star Videos
Star Videos
Star Videos
Star Videos
Star Videos
Star Videos
Star Videos
The Rocking Chair Walk
Skip for Height Without Leg Alternation
Conclusion
Bibliography
It can thus be seen that to enhance individual performance, biomechanical principles need to be analysed, errors in technique must be identified and through reflection and decision making, modifications to performance should be implemented.