My PhD Research

The aim of this page is to let people know what my PhD research area is and how this is beneficial to the judo community. I am currently a full-time member of staff at Anglia Ruskin University and therefore they are funding me to complete a PhD part-time over 5-6 years. Anglia Ruskin University has a dedicated judo research group that is a collaboration of researchers, post graduate students and one paid research assistant.

The working title of my research is “A technical, tactical and temporal of lightweight women’s judo” and the aims are quite simple:

• To develop an understanding of the technical aspects of lightweight women’s judo
• To develop an understanding of the tactical aspects of lightweight women’s judo
• To understand the physiological demands of lightweight women’s judo from a time motion perspective
• To compare the technical, tactical and time motion data for lightweight women pre and post the 2013 IJF rule changes

Some might ask why this is important. Well, in the UK, high performance judo has a budget of £7.9m of the tax payers money over a four year cycle (leading up to London, it is £6.8m leading up to Rio 2016). For arguments sake lets say this is split 50/50 for men and women, that is almost £1m per year of tax payers money to get a maximum of 7 Olympic medals. If we were spending this much tax payers money on anything else you would expect the delivery system to be very well researched so why not judo? Currently training is based upon the opinions of the performance director and her coaches, is this adequate?

Much of the current available research is dated, it is based upon old weight groups and old rules. There is also little research that focusses on both men and women and virtually none that is solely on women.

Developing an understanding of how women’s judo is different from men’s can inform coaches of how best to train female judo players.

Supervisory team:

Professor Mike Cole

Dr Mike Callan

Adrian Scruton

Published Research in this area to date:

Miller, G., Collins, N., Stewart, M., & Challis, D.G. 2015. Throw type and technique efficiency of nage-waza  used in the 2013 Junior and Senior British Judo Championships. International Journal of Performance Analysis in Sport. Volume 15, Number 1.

Challis, D.G., Scruton, A., Cole, M., and Callan, M. 2015.  A Time-Motion Analysis of Lightweight Women’s Judo in the 2010 World Championships. International Journal of Sports Science and Coaching. Volume 10, Issue 3.

Collins, N. & Challis, D.G. 2013. An Analysis of Kumi Kata at the Junior and Senior British Championships 2013. 8th International Judo Federation World Judo Research Symposium. Rio de Janeiro, Brazil.

Challis, D.G. 2013. A Temporal Analysis of the u52kg Women’s Judo in the 2010 World Championships. 8th International Judo Federation World Judo Research Symposium. Rio de Janeiro, Brazil.

Challis, D.G. 2011. A Temoral Analysis of the u48kg Women’s Judo in the 2010 World Championships. 7th International Judo Federation World Judo Research Symposium. Paris.

Other research:

Santos L., Fernández-Río J., Ruiz M. L., Del Valle M., Callan M., Challis B., Sterkowicz S. 2014. Three- dimensional assessment of the judo throwing techniques frequently used in competition. Archive of Budo, 10, 107-115.

Challis, D.G. 2013. Talent Identification in Judo. Unpublished data. (Research on behalf of International Judo Federation coaching academy).

Callan, M. & Challis, D.G. 2012. Top 8 Judo 2012 Olympic Qualification Ranking List – Tracking Study. Presented to UK Sport and the British Judo Association.

Challis, D.G. 2009. A comparison of two methods of coaching judo to 9-11 year olds. 6th International Judo Federation World Judo Research Symposium. Rotterdam.

Challis, D.G. 2007. The Implementation of Long-Term Athlete Development: A case Study. 5th International Judo Federation World Judo Research Symposium. Rio de Janeiro. Challis, D.G. 2006. Talent Identification in British Judo. Unpublished data.

Currently working on or work submitted and being reviewed:

Challis, D.G., Scruton, A., Cole, M., Collins, N., and Callan, M. TBC. A technical and Tactical Analysis of Lightweight WOmen’s Judo at the 2010 and 2014 World Judo Championships: Effects of Rule Changes. TBC

Miller, G., Nevison, C., and Challis, D.G. TBC. A Technical profile of nage-waza used by Judoka from Great Britain, and top four nations at the 2015 Baku Grand Slam. TBC

Collins, N., Miller, G. & Challis, D.G. TBC.  A comparison of kumi-kata  across age, gender  and weight categories in British Judo. TBC

Challis, D.G., Scruton, A., Cole, M., Collins, N., and Callan, M. 2017. A Temporal Analysis of Lightweight Women’s Judo in the 2016 World Judo Championships: Effects of Rule Changes. TBC

Other research currently being worked on includes training load management in judoka’s, the psychological affects of injury on judoka’s, the use of performance profile in a judo training environment and a biomechnical analysis of Morote Seoi-Nage. All of these are in their early stages.

 

Journal Articles reviewed by me:

Sterkowicz-Przybycien, K., Miarka, B., & Fukuda, D. H. 2017. Sex and weight category differences in time-motion analysis of elite judo athletes: Implications for assessment and training. The Journal of Strength and Conditioning Research.

Miarka, B., Sterkowicz-Przybycien, K., & Fukuda, D. H. 2016. Evaluation of Sex-Specific Movement Patterns in Judo Using Probabilistic Neural Networks. Motor Control, 1-29.

Miarka, B., Branco, B. H., Vecchio, F. B., Camey, S., & Franchini, E. 2015. Development and validation of a time-motion judo combat model based on the Markovian Processes. International Journal of Performance Analysis in Sport, 15(1), 315-331.

Adam, M., Smaruj, M., & Laskowski, R. 2014. A Technical and Tactical Profile of the Double Olympic Judo Champion: A Case Study. International Journal of Sports Science and Coaching, 9(1), 123-138.

Pujszo, R., Marek, A., & Kuźmińska, A. 2014. The course of the judo fight in the heaviest category (+ 100kg) seen from the perspective of attacks in the standing position, based on the Olympic Games in London 2012. Ido Movement for Culture. Journal of Martial Arts Anthropology, 14(1), 63-71.

Lage, I. P., Gutiérrez-Santiago, A., Foguet, O. C., & Argilaga, M. T. A. 2013. Knowledge of Error in Relation to the Teaching and Learning of the Osoto-Gari Judo Throw. International Journal of Sports Science and Coaching, 8(1), 53-62.

Sterkowicz, S., Sacripanti, A., & Sterkowicz_Przybycien, K. 2013. Techniques frequently used during London Olympic judo tournaments: a biomechanical approach. Archives of Budo. Issue 1 vol 9.

If you are interest in becoming a member of the judo research group at Anglia Ruskin University or being involved in any of our other judo activities please email judo@anglia.ac.uk.