Dr Grant Trewartha

Senior Lecturer
Applied Biomechanics Suite 1.301
Email: g.trewartha@bath.ac.uk
Tel: +44 (0) 1225 38 3055
Research funding
Research Groups & Memberships
- Rugby research group
- Network Editor, IRB Rugby Science Network
- Member, IRB Scrum Steering Group
- Member, International Society of Biomechanics
Profile
Grant joined the University of Bath in September 2001 having completed his PhD in Biomechanics at Loughborough University. He teaches on the biomechanics strands of the undergraduate (SES) and distance learning MSc (SPY/SEM) programmes and supervises BSc/MSc/PhD students studying on topics within his research areas. He is currently Chair of the SSLC committee for the BSc Sport & Exercise Science programme and the Link Academic Advisor for sport-related Foundation and BSc degree programmes at partner colleges.
Grant’s research area is broadly the biomechanics of injury prevention and injury mechanisms. Within sport this mainly relates to rugby union and endurance running; within an exercise/health context this mainly relates to trip recovery and fall prevention. His research analyses human movement patterns during high-risk actions, either directly or through modelling approaches, to develop an understanding of the loads placed on the human body and investigate whether technique, equipment or training interventions can modify these loads to reduce the risk of injury. Where appropriate he incorporates other methodologies, such as epidemiological research, to inform the evidence-base for interventions.
Research interests
- Injury prevention in rugby
- Epidemiology of rugby injury
- Technique analysis within rugby union
- Biomechanics of sprinting
- Injury prevention in endurance running
Teaching
Undergraduate
- HL10034: Functional anatomy
- HL20108: Applied sport biomechanics
- HL30064: Theoretical biomechanics
- HL30110: Research project
Postgraduate
- HL50140: Athlete biomechanics and sport analysis
- HL50077: Research project design
- HL50145: Sports physiotherapy research project
- HL50078: Research Project
Publications
Book Sections
Preatoni, E., Stokes, K., England, M. and Trewartha, G., 2012. Forces generated in rugby union machine scrummaging at various playing levels. In: 2012 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury. Dublin: , pp. 369-378.
Preatoni, E., Wallbaum, A., Gathercole, N., Coombes, S., Stokes, K. and Trewartha, G., 2011. An integrated measurement system for analysing impact biomechamics in the rugby scrum. In: Proceedings of the 2011 IUTAM Symposium on impact Biomechanics in Sport,Dublin (Ireland) July 7-9,2011. University College Dublin, pp. 50-51.
Bezodis, I. N., Salo, A., Kerwin, D. G., Churchill, S. and Trewartha, G., 2010. A case study of stride frequency and swing time in elite able-bodied sprint running: implications for amputee debate. In: Jensen, R., Ebben, W., Petushek, E., Richter, C. and Roemer, K., eds. Proceedings of the XXVIII International Conference on Biomechanics in Sports (2010). Marquette, MI.: Northern Michigan University, pp. 131-133.
Bezodis, N. E., Salo, A. and Trewartha, G., 2010. Kinematic aspects of block phase technique in sprinting. In: Jensen, R., Ebben, W., Petushek, E., Richter, C. and Roemer, K., eds. Proceedings of the XXVIII International Conference on Biomechanics in Sports (2010). Marquette, MI.: Northern Michigan University, pp. 249-252.
Bezodis, N. E., Trewartha, G. and Salo, A. I. T., 2009. Development, evaluation and application of a simulation model of a sprinter during the first stance phase. In: Harrison, D., Anderson, R. and Kenny, I., eds. Proceedings of the XXVII International Conference on Biomechanics in Sports. International Society of Biomechanics in Sports, pp. 108-111.
Bezodis, N. E., Trewartha, G. and Salo, A. I. T., 2008. Understanding elite sprint start performance through an analysis of joint kinematics. In: Kwon, Y. -H., Shim, J., Shim, J. K. and Shin, I. S., eds. Proceedings of the XXVI International Conference on Biomechanics in Sports. Korea: Rainbow Books, pp. 498-501.
Articles
Preatoni, E., Stokes, K. A., England, M. E. and Trewartha, G., 2013. The influence of playing level on the biomechanical demands experienced by rugby union forwards during machine scrummaging. Scandinavian Journal of Medicine & Science in Sports, 23 (3), pp. 178-184.
Palmer-Green, D. S., Stokes, K. A., Fuller, C. W., England, M., Kemp, S.P.T. and Trewartha, G., 2013. Match injuries in English youth academy and schools rugby union: an epidemiological study. The American Journal of Sports Medicine, 41 (4), pp. 749-755.
Farris, D. J., Trewartha, G., McGuigan, M. P. and Lichtwark, G. A., 2013. Differential strain patterns of the human Achilles tendon determined in vivo with freehand three-dimensional ultrasound imaging. The Journal of Experimental Biology, 216 (4), pp. 594-600.
Bezodis, N.E., Salo, A.I.T. and Trewartha, G., 2013. Forthcoming. Excessive fluctuations in knee joint moments during early stance in sprinting are caused by digital filtering procedures. Gait & Posture
Farris, D. J., Buckeridge, E., Trewartha, G. and McGuigan, M. P., 2012. The effect of orthotic heel lifts on Achilles tendon force and strain during running. Journal of Applied Biomechanics, 28 (5), pp. 511-519.
Preatoni, E., Wallbaum, A., Gathercole, N., Coombes, S., Stokes, K. A. and Trewartha, G., 2012. An integrated measurement system for analysing impact biomechanics in the rugby scrum. Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, 226 (3-4), pp. 266-273.
Bezodis, N. E., Salo, A. I. T. and Trewartha, G., 2012. Measurement error in estimates of sprint velocity from a laser displacement measurement device. International Journal of Sports Medicine, 33 (6), pp. 439-444.
Bezodis, N. E., Salo, A. I. T. and Trewartha, G., 2012. Modeling the stance leg in two-dimensional analyses of sprinting: inclusion of the MTP joint affects joint kinetics. Journal of Applied Biomechanics, 28 (2), pp. 222-227.
Farris, D. J., Trewartha, G. and Mcguigan, M. P., 2012. The effects of a 30-min run on the mechanics of the human Achilles tendon. European Journal of Applied Physiology, 112 (2), pp. 653-660.
Farris, D. J., Trewartha, G. and Mcguigan, M. P., 2011. Could intra-tendinous hyperthermia during running explain chronic injury of the human Achilles tendon? Journal of Biomechanics, 44 (5), pp. 822-826.
Roberts, S. P., Stokes, K. A., Trewartha, G., Hogben, P., Doyle, J. and Thompson, D., 2011. Effect of combined carbohydrate-protein ingestion on markers of recovery after simulated rugby union match-play. Journal of Sports Sciences, 29 (12), pp. 1253-1262.
Bezodis, N. E., Salo, A. I. T. and Trewartha, G., 2011. The effect of digital filtering procedures on knee joint moments in sprinting. Portuguese Journal of Sport Sciences, 11 (2), pp. 837-840.
Churchill, S. M., Salo, A. I. T. and Trewartha, G., 2011. The effect of the bend on technique and performance during maximal speed sprinting. Portuguese Journal of Sport Sciences, 11 (2), pp. 471-474.
Bezodis, N. E., Salo, A. I. T. and Trewartha, G., 2010. Choice of sprint start performance measure affects the performance-based ranking within a group of sprinters: which is the most appropriate measure? Sports Biomechanics, 9 (4), pp. 258-269.
Roos, P. E., Mcguigan, M. P. and Trewartha, G., 2010. The role of strategy selection, limb force capacity and limb positioning in successful trip recovery. Clinical Biomechanics, 25 (9), pp. 873-878.
Roberts, S. P., Stokes, K. A., Trewartha, G., Doyle, J., Hogben, P. and Thompson, D., 2010. Effects of carbohydrate and caffeine ingestion on performance during a rugby union simulation protocol. Journal of Sports Sciences, 28 (8), pp. 833-842.
Roberts, S., Stokes, K. A., Weston, L. and Trewartha, G., 2010. The Bath University Rugby Shuttle Test (BURST): a pilot study. International Journal of Sports Physiology and Performance, 5 (1), pp. 64-74.
Davidson, A. and Trewartha, G., 2008. Understanding the physiological demands of netball: A time-motion investigation. International Journal of Performance Analysis in Sport, 8 (3), pp. 1-17.
Trewartha, G., Casanova, R. and Wilson, C., 2008. A kinematic analysis of rugby lineout throwing. Journal of Sports Sciences, 26 (8), pp. 845-854.
Mellalieu, S., Trewartha, G. and Stokes, K., 2008. Science and rugby union. Journal of Sports Sciences, 26 (8), pp. 791-794.
Farris, D., Buckeridge, E., Trewartha, G. and McGuigan, P., 2008. The effects of orthotic heel lifts on Achilles tendon force and strain during running. Comparative Biochemistry and Physiology A - Molecular & Integrative Physiology, 150 (3), S82.
Roberts, S. P., Trewartha, G., Higgitt, R. J., El-Abd, J. and Stokes, K. A., 2008. The physical demands of elite English rugby union. Journal of Sports Sciences, 26 (8), pp. 825-833.
Roos, P. E., McGuigan, M. P., Kerwin, D. G. and Trewartha, G., 2008. The role of arm movement in early trip recovery in younger and older adults. Gait & Posture, 27 (2), pp. 352-356.
Bezodis, N., Trewartha, G., Wilson, C. and Irwin, G., 2007. Contributions of the non-kicking-side arm to rugby place-kicking technique. Sports Biomechanics, 6 (2), pp. 171-186.
Roberts, S., Trewartha, G. and Stokes, K., 2006. A comparison of time-motion analysis methods for field-based sports. International Journal of Sports Physiology and Performance, 1, pp. 386-397.
Yeadon, M. R., Trewartha, G. and Knight, J. P., 2004. Model-based automatic tracking of articulated human movement. Sports Engineering,, 7, pp. 53-63.
Trewartha, G., Yeadon, M. R. and Knight, J. P., 2003. Colour based rigid body tracking using three-dimensional graphics models. Sports Engineering, 33, pp. 139-148.
Yeadon, M. R. and Trewartha, G., 2003. Control strategy for a hand balance. Motor Control, 7 (4), pp. 411-430.
Kerwin, D. G. and Trewartha, G., 2001. Strategies for maintaining a handstand in the anterior-posterior direction. Medicine and Science in Sports and Exercise, 33 (7), pp. 1182-1188.
Conference or Workshop Items
Bezodis, N. E., Trewartha, G. and Salo, A. I. T., 2008. Technique and performance during the elite sprint start. In: BASES Biomechanics Interest Group, Easter Meeting no 24, 2008-01-01, Cardiff School of Sport.
Bezodis, N. E., Trewartha, G. and Salo, A. I. T., 2007. A comparison of initial step characteristics in elite sprinters. In: BASES Biomechanics Interest Group, Easter Meeting no 23, 2007-01-01.
Pennock, S. R., Shepherd, P. R., Trewartha, G. and Bramley, A. N., 2006. UWB Tracking for Sports and Entertainment. In: 1st European Conference on Antennas and Propagation (EuCAP 2006), 2006-11-06 - 2006-11-10, Nice.
Bramley, A. N., Pennock, S. R., Kerwin, D., Shepherd, P. R. and Trewartha, G., 2006. A System for Radio Tracking of Team-Sports Players. In: 6th International Conference on the Engineering of Sport, 2006-07-11 - 2006-07-14, Munich.
