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Biomechanics and Surfing

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by

Chantelle Pryce

on 12 November 2014

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Transcript of Biomechanics and Surfing


Base of Support
Center of Mass
Biomechanics and Surfing
My Surfing Pop Up Technique
Professional Surfing Pop Up Technique
References
About Biomechanics. BASES. n.d. Accessed 10th November 2014. http://www.bases.org.uk/biomechanics

Biomechanics & Physics of Sport. Top End Sports. 2014. Accessed 10th November 2014. http://www.topendsports.com/biomechanics/

Sheik Abdul Khadir, Rachel Lowe, Scott Buxton. Base of Support. Physiopedia. N.d. Accessed 10th November 2014. http://www.physio-pedia.com/Base_of_Support

Scott Coleman. Balance: The Most Important Aspect of Surfing. 2014. Surf Science. Accessed 10th November 2014. http://www.surfscience.com/topics/surfing-tips/intermediate-tips/balance-the-most-important-aspect-of-surfing/

Douglas G. Booth. Surfing. Encyclopedia Britannica. 2014. Accessed 10th November 2014. http://www.britannica.com/topic/575128/contributors

Sheik Abdul Khadir, Rachel Lowe, Laura Ritchie, Tony Lowe, Scott Buxton. Center of Mass. Physiopedia. N.d. Accessed 10th November 2014http://www.physio-pedia.com/Centre_of_Gravity

Catherine H. Colwell. Center of Mass. 2014. Physics Lab. Accessed 10th November 2014 http://dev.physicslab.org/Document.aspx?doctype=3&filename=RotaryMotion_CenterMass.xml

Paul Doherty. The Science of Surfing. Science Wire. N.d. Accessed 10th November 2014 http://www.exploratorium.edu/theworld/surfing/physics/index.html

Mark Kaplan. Low Center of Gravity as Surfing Technique. Oceanside Surf Lessons. 2014. Accessed 10th November 2014. http://surfboardsoceanside.com/low-center-of-gravity-as-surfing-technique/

Paul Doherty. The Science of Surfing. Science Wire. N.d. Accessed 10th November 2014 http://www.exploratorium.edu/theworld/surfing/physics/index.html


Professional Pop Up vs My Pop Up
The area beneath an object or person that includes every point of contact that the object or person makes with the supporting surface” (Khadir, n.d)

When surfing your base of support refers to the positioning of your feet when you pop up, the wider apart your feet are, the more balanced you are (Coleman, 2014).

Base of support is related to line of gravity, which is "a hypothetical point around which the force of gravity appears to act" (Khadir, n.d).

When the line of gravity falls outside the base of support, a reaction is needed to stay balanced.” (Kahdir, n.d).

Analysis of my Technique
(BOS)
I am not balanced on my board due to my base of support being too narrow

I am unstable due to my line of gravity falling outside of my base of support.

I need to widen my base of support to gain more balance; I can do this by placing my feet wider apart on the board when I pop up.

By increasing my base of support my stability increases as my line of gravity need to move a greater distance to fall outside of the base of support

Center of mass is the point where the mass of an object is concentrated (Colwell, 2014).

Your center of mass is located just below the navel in the middle of your body (Doherty, n.d).

When you pop up on your surfboard your center of mass should be above the base of support and is what balances you when you’re standing up.

If your center of mass is not above the base of support you will be unbalanced. (see image)


Analysis of My Technique (COM)
My knees are almost straight, therefore my center of mass is not low enough to my base of support.

“A lower center of gravity has your body crouched so that there is a straight line from the middle of your feet through the top of your head” (Kaplan, 2014).

When I pop up I need to bend my knees so that I am almost kneeling on the board.

By lowering my center of mass I am preparing myself for the next move, whether it be a bottom turn or pumping for more speed.

Thank You For Listening
By Chantelle Pryce
Full transcript