BrodieMAD's Channel

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Camera-less Motion Capture of Ski Racing BrodieMAD 2,355 views This is an example of camera-less motion capture. This data is used with additional biomechanical analyses to unlock the secrets behind sking faster. My system is capable o...
Knee Injury Research BrodieMAD 6,124 views Stiff boots may increase the knee loading. Reduce your knee injuries in skiing with this research; recorded at 50 frames/sec but played back at half speed. Scale: Net joint...
Science of Gold Medals and Skiing BrodieMAD 11,589 views An entry to the New Zealand Young Scientist Competition exlains my research using Fusion Motion Capture to measure the biomechanics of skiing. Designed for a 15 year old sc...
Ski race technique from many view points BrodieMAD 20,037 views This is Ben Griffin, member of the NZ team, www.bengriffin.co.nz. See his technique from many views. Ben volunteered as a subject for my PhD reserach into ski racing the da...
What makes one skier fastest? Forces? BrodieMAD 20,721 views How do forces change an athlete's skiing speed? The forces of gravity, snow friction, wind drag and ground reaction (ski pressure) are visualised. Green for when they accel...
Skiing Naked: Theory of Relativity BrodieMAD 11,029 views In this animation the skier is animated without clothes, once naked we can see the underlying limb movements. It is interesting to see how the skilled skier moves realative...
Inline Skating Talks? BrodieMAD 2,754 views View the Athlete's Ground Reaction Forces and Net Joint Torques as he skates through a Slalom course. Green for accelerating, red for breaking forces. Light blue for eccent...
Ski Race: Validate Fusion Motion Capture BrodieMAD 7,082 views Does this look like the skier in the video? Compare video motion capture to Fusion Motion Capture. Part of a PhD Thesis at Massy University (www.massey.ac.nz). By Matthew B...
Ski Faster: How to Accelerate while Turning BrodieMAD 69,499 views Feel what it is like to be a champion skier, go upto 70km/h. View the forces under your feet, green for accelerating, red for breaking. Part of my PhD thesis at Massey Univ...
Virtual Ski Cross BrodieMAD 9,388 views Red wins by 0.12 seconds. For my PhD thesis at Massey University (www.massey.ac.nz) I designed a Fusion Motion Capture system using GPS and IMUs to capture athlete motion t...

About Motion Capture by Matt Brodie

Biomechanics meets the general audience!

massey.ac.nz

Created by

BrodieMAD

Latest Activity

Oct 3, 2007

Date Joined

Oct 3, 2007

About this user

Biomechanics is the studies of how the biological systems are able perform. We can also use biomechanics to improve sporting performances and reduce injuries. My thesis is titled 'The Optimisation of Athlete Movement in Alpine Ski Racing'.

The videos use Fusion Motion Capture, without cameras, for the analysis of the athletes' motion. This represents a big technological step. The principals of motion capture have remained unchanged until now since 1877 when Eadweard Muybridge captured the motion of horses galloping. Rumoured to settle a bet; were all the hooves ever clear of the ground. I am not the first to attempt camera-less motion capture, but I am the first to get it to work accurately in highly dynamic situations. I am the first to have captured the motion of a skiing and skating, completed a full biomechanical analysis without cameras, and displayed the results in a way normal people can understand through innovative data driven animations!

For this work I won the 2008 New Zealand Young Scientists of the Year Awards category for future science and was overall runner up.

I really like skiing fast. In 2004 I was the production class New Zealand Speed Skiing champion, and since then the race has not been held again, so I remain undefeated... it turned out to be a very low effort - high reward event to enter!

For more information I have published several papers on this work in the Journal of Applied Biomechanics, the Journal of Sports Technology and Computer Methods in Biomechanics and Biomedical Engineering. My next New Zealand conference is Sport and Exercise Science NZ (SESNZ), Dunedin in November. My next international conference may be the International Society of Biomechanics (ISB) in Cape Town 2009. Maybe I will see you there.

My thesis is now available.

Age

Hometown

Wellington

Country

New Zealand

Schools

Massey University New Zealand

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