A preliminary investigation of the use of inertial sensing technology for the measurement of hip rotation asymmetry in horse riders

Abstract

This study investigated the use of inertial sensing technology as an indicator of asymmetry in horse riders, evidenced by discrepancies in the angle of external rotation of the hip joint. Twelve horse and rider combinations were assessed with the rider wearing the Xsens^TM MVN inertial motion capture suit. Asymmetry (left vs right) was revealed in mean hip external rotation of all riders, with values ranging from 1° to 27°, and 83% showed greater external rotation of the right hip. This study represents novel use of inertial sensing equipment in its application to the measurement of rider motion patterns. The technique is non-invasive, is capable of recording rider hip rotation asymmetry whilst performing a range of movements unhindered and was found to be efficient and practical, with potential to further advance the analysis of horse and rider interactions.

Keywords::

• horse rider
• back pain
• asymmetry
• hip rotation
• inertial sensor

Acknowledgements

The authors would like to express their thanks to Dr. Michael Oakes, University of Sunderland, for advice on statistical analysis. They would also like to thank the participating riders, together with horse and venue owners.