Inaugural Best Paper award, Velocity profiling using inertial sensors for freestyle swimming

adat-in-actionCongratulations Andy on winning the inaugrall Best paper of the year award in the prestigous Journal of Sports Engineering.

It is the culmination of many years of work towards Dr. Stamm’s PhD. We look forward to hopefully seeing you at the ISEA Engineering of Sport conference later in the year to accept your award

Sports Engineering
March 2013, Volume 16, Issue 1, pp 1-11
Velocity profiling using inertial sensors for freestyle swimming
Andy Stamm, Daniel A. James, David V. Thiel
Abstract
The ability to unobtrusively measure velocity in the aquatic environment is a fundamental challenge for engineers and sports scientists and important in assessing the skill level. The aim of this research was to develop a method for velocity profiling in freestyle swimming utilising a purpose-built inertial sensor. Seventeen swimmers with different experience levels participated in this study performing a total of 159 laps in the velocity range from 0.79 to 2.04 m s−1. Data were collected using a triaxial accelerometer and a tethered velocity meter. The collected acceleration data were filtered using a 0.5 Hz Hamming-windowed FIR filter to remove the gravitational acceleration before the lap velocity profiles were calculated. These calculated lap velocity profiles were then compared with the velocity profiles measured by the velocity meter using Bland–Altman analysis. The scattering follows a normal distribution with a mean skewness of 0.96 ± 0.47 and kurtosis of 2.93 ± 1.12. The results show that an inertial sensor alone can be used to determine a lap velocity profile from single point acceleration records.

 

See the full article here
http://link.springer.com/article/10.1007/s12283-012-0107-6

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This entry was posted in Sports technology on by .

About Daniel James

Dan has been working with technology ever since he discovered he had opposable thumbs. Along the way he worked in sports technology, radio physics, glaciology, IT in banking, cognitive psychology and sports science. Before parenthood took over he enjoyed playing classical music, adventure sports and dabbling in martial arts. Today AFK finds him camping and wrestling with his boys.

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