Get your FUTURE PLAN started now - OPEN DAY 25 OCTOBER

De Ste Croix, Mark (Prof.) 


Mark de Ste Croix

Faculty Postgraduate Research Director, Professor of Paediatric Sport and Exercise and Co-Director Exercise and Sport Research Centre Mark de Ste Croix, Faculty Postgrad. Research Director, Professor of Paediatric Sport & Exercise, University of Gloucestershire

Email: mdestecroix@glos.ac.uk
Telephone: +44 (0)1242 715159

Profile

As the Faculty of Applied Sciences Postgraduate Research Director, I have oversight and responsibility for research degrees within the Faculty. This includes research student and supervisor training as well as ensuring that research students develop as researchers under the Researcher Excellence Framework.

Within the School of Sport and Exercise I teach on both undergraduate and post graduate courses, predominantly in physiology, strength and conditioning and injury risk/prevention. I also supervise a number of PhD and MSc by Research students.

As Co-Director of the Exercise and Sport Research Centre, I have joint oversight of staff and student research within the Centre and am lead for the ‘Pre/rehabilitation through Sport and Exercise’ strand.

Academic qualifications  

  • PhD in Paediatric Sport and Exercise Physiology     
  • BA (Ed) Hons in Physical Education

Accreditations

BASES Accredited (Research)

Areas of research interest and teaching expertise 

  • I teach on undergraduate modules relating to strength and conditioning and research methods/dissertation.
  • The majority of my teaching is on the MSc courses where I lead physiology modules and contribute to paediatric strength and conditioning modules.
  • I am currently supervising a number of PhD and MSc by Research students who are exploring a range of topic areas. However, most are aligned to my research interests of neuromuscular functioning and injury risk/prevention, especially in paediatric populations.
  • I am interested in paediatric sport and exercise physiology and the influence that growth and maturation has on a number of physiological parameters.
  • I have researched talent identification and development, but my main research focus is on muscular and neuromuscular functioning and in particular the influence of fatigue.
  • I am also interested in children’s physical activity and well-being, assessment using isokinetic dynamometry, electromyography.
  • I have worked with a number of professional sports including working with the English FA, UEFA, FIFA, ECB, England Hockey, Athletic Club Bilbao, UK Triathlon, Gloucester Rugby Club and Bristol City FC.  

Other research/consultancy/grant funding 

Research Funding 

  • ~£400,000 of Science Research Infrastructure (SRIF) funding for the Cardiac Respiratory Research Centre, 2005. My research work was included to secure this funding and supported colleagues research (Dr. David James and Dr. Diane Crone) in the success of this bid.
  • £45,000 Competitive PhD Research Scholarship: Jersey Education Department (3 Years)
  • £75,000 Competitive Post-Doctoral Research Fellowship: Exeter University Research Fund (3 Years)
  • £1,500 - British Association of Sport and Exercise Science: to write an Expert statement on ‘Exercise testing in children’ (with Dr Keith Tolfrey (Lead), Associate Prof Craig Williams, Prof Gareth Stratton)
  • £1,500 - British Association of Sport and Exercise Science: to write an Expert statement on ‘Isokinetic testing’ (with Prof Bill Baltzopolos (Lead), Dr Nigel Gleeson, Dr Mark King)
  • £60,000 - University of Gloucestershire Research fund: Joint bid between the department of Sport and Exercise and the Exercise and Sport Research Centre titled: ‘Building research capacity and investing in the future’. This funding was to support junior staff to help produce output that would contribute towards the 2013 REF (Professor Andrew Parker [Lead])
  • €19,000 – UEFA Research Fund: ‘Protect her knees - Exploring the role of soccer specific fatigue on injury prevention in female youth soccer players’
  • £10,000 – English Football Association and University of Gloucestershire – MSc by Research studentship to explore injury risk in female youth footballers
  • £8,000 – Bristol City Football Club - MSc by Research studentship
  • $20,000 – Jaoa Havelange Scholarship (FIFA Research Fund): ‘The influence of soccer match play on neuromuscular readiness to re-perform: Injury risk in elite female youth players.’
  • €20,000 – UEFA Research Fund: ‘Overtraining in professional youth soccer players: A comparison between England and Spain’ – (with Prof Craig Williams [Lead], Dr Jon Oliver) (pending)
  • £60,000 – Czech Scientific Research Fund: Neuromuscular functioning in elite male youth Czech footballers’ – (with Prof Michal Lehart [Lead]) (pending)

Completed research degrees

Research degree students currently supporting Research Degree Completions

PhD - Dr. Youssif el Nagar (2012) ‘Sex differences in dynamic knee stability and electromechanical delay in injury prevention.’

PhD – Dr Francisco Ayala (2012) ‘The role of stretching and performance in functional rehabilitation’ (International Doctorate: passed with Distinction)

PhD – Dr. Chris Owens (2012) ‘Sport and physical activity participation and sedentarism: factors associated with the completion of formal education’

PhD – Dr Caroline Dodd (2005) ‘Energy regulation in young children’ (Advisor)

PhD  – Dr Louise Wood (2003) ‘Sex differences in isometric muscle strength and the role of the muscle moment arm.’ (Advisor)

PhD – Dr Martine Deighan (2002) ‘The development of concentric and eccentric leg and arm strength.’ (Advisor)

MSc by Research - Mr Matthew Fiander (2013) ‘How do developmental youth sport coaches develop game strategy efficacy’

MRes – Mr Mark Jeffreys (2013) ‘Changes in the reactive strength index through plyometric training’

MSc by Research – Miss Abigail Priestley (2012) ‘The effect of football specific fatigue on dynamic knee stability in elite female youth footballers’

MSc by Research – Mr Steven Munson (2008) ‘Influence of exercise on heart rate variability at rest.’

MSc by Research – Mr Jerome Sauret (2007) ‘The effect of an action-specific isokinetic fatigue task on the functional H/Q ratio.’

Current research degree supervision

PhD: Claire Mills
‘Body composition assessment in professional soccer players.’

PhD: Linda Reynolds
‘Acute post-exercise cardiovascular responses in healthy participants’

PhD: Paul Green
‘The role of resistance training in improving fundamental movement skills during childhood’

PhD: Georgina Reed
‘The effectiveness of neuromuscular training in developing feedforward and feedback neuromuscular mechanisms to reduce injury risk if female footballers’

PhD: Amal Eturki
‘Effectiveness of resistance training for individuals with osteoarthritis’

PhD: Paul Read
‘Strength training for reducing injury risk in males’

PhD: Sarah Dibble
‘Talent development in elite tennis players: does the LTAD model work in the UK?’

MSc by Research: Althea Du Monceau
‘The influence of maturation on 3D landing mechanics in elite female youth footballers’

MSc by Research: Ruth Ashton
‘The influence of age and maturation on mechanisms associated with injury incidence’

MSc by Research: Katrina Denton
‘Neuromuscular readiness to re-perform in female youth footballers’

Journal articles invited reviews

De Ste Croix, M.B.A. 2012. “Isokinetic assessment and interpretation in paediatric populations: why do we know relatively little? Isokinetics and Exercise Science 20 (4) 275-91

De Ste Croix, M.B.A. 2007. Advances in paediatric strength testing: changing our perspective on age and sex associated differences in muscle strength. Journal of Sports Science and Medicine  6 pp. 292-304

Expert statement for British Association of Sport and Exercise Science

Tolfrey, K., De Ste Croix, M., Stratton, G. and Williams, C. 2012. Exercise testing in children. The Sport and Exercise Scientist

Baltzopoulos, B., De Ste Croix, M., Gleeson., M. And King, M. 2012. Assessment and interpretation of isokinetic dynamometry. The Sport and Exercise Scientist

Journal articles

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2012. Estiraminento active y relacion longitude-tension excentrica de la musculature isquiosural International Journal of Medicine and Science of Physical Activity and Sport (In Press)

Lehnert, M., Psotta, R., Chvojka, P., De Ste Croix, M. 2013 Seasonal variation in isokinetic peak torque in adolescent soccer players. International Journal of Sports Medicine (Under Review)

Owens, C.S; Crone, D; James, D.V.B; De Ste Croix, M; Gidlow, C.J. 2013. Physical activity and screen time in English adolescents transitioning out of compulsory education: A prospective longitudinal study Journal of Public Health (Under Review)

De Ste Croix, M.B.A., Share, K., and Lloyd, R.S. 2012. The influence of a 10 week resistance training programme on muscle strength, body composition and endurance performance in children. International Journal of Sports and Performance Physiology (Under review)

Green, P., Lloyd, R., De Ste Croix, M.B.A., Oliver, J. and Faigenbaum, A. 2012. The development of Fundamental Movement Skills throughout childhood – implications to health and wellbeing, physical activity and performance. Sports Medicine (Under Review)

De Ste Croix, M.B.A., El Nagar, Y., Iga, J., and James, D. 2012. The influence of joint angle and movement velocity on sex differences in dynamic knee stability. Journal of Athletic Training (Under Review)

De Ste Croix, M.B.A., El Nagar, Y., Iga, J., and James, D. 2012. Sex difference in electromechanical delay of the hamstrings during eccentric muscle actions: implications for knee stability. Scandiavian Journal of Sports Medicine (Under preparation)

Deighan, M., De Ste Croix, M.B.A., Priestley, A., Lloyd, R., and Oliver, J. 2013. Reproducibility, age and maturation differences in leg stiffness in female youth soccer players.

Lloyd, R., De Ste Croix, M.B.A., Priestley, A., and Oliver, J. 2013. The effect of simulated football performance on leg stiffness in female youth soccer players.

Lloyd, R., De Ste Croix, M.B.A., Faigenbaum, A., Myer, G., and Oliver, J. 2013. Chronological versus biological maturation: Implications for exercise programming in youth. Sports Medicine (Under Review)

Milanović, Z.,  Sporiš, G.,  James N., Trajković N., and De Ste Croix, M  On-Pitch Performance, Morphological Characteristics, Functional and Motor Abilities and Injuries of Female Soccer Players

De Ste Croix, M.B.A., El Nagar, Y., Iga, J., and James, D. 2011. Influence of muscle fatigue in sex differences of dynamic knee stability. American Journal of Sports Medicine (Under preparation)

2012

Ayala, F., De Ste Croix, M.B.A., Sainz de Baranda, P, Santonja, F. 2012 Acute effects of static and dynamic stretching on the hamstring eccentric length-tension relationship and unilateral hamstring to quadriceps strength ratios. Journal of Sports Sciences (In Press)

Iga, J., Fruer, S., De Ste Croix, M.B.A., Deighan, M.A., and James, D.V.B. 2012. Nordic hamstrings exercise – Engage characteristics and training response. International Journal of Sports Medicine 12: 1000-1004

Ayala, F., Sainz de Baranda, P, De Ste Croix, M., Santonja, F. 2012. Reproducibility and concurrent validity of hip joint angle test for estimating hamstring flexibility in recreationally active young men. Journal of Strength and Conditioning Research 26 (9): 2372-83

Ayala, F., Sainz de Baranda, P., De Ste Croix, M., Santonja, F. 2012. Absolute reliability of five clinical tests used to measure hamstring flexibility in professional futsal players. Journal of Science and Medicine in Sport 15 (2): 142-48

Read, P., Lloyd, R.S., De Ste Croix, M.B.A. and Oliver J. 2012 Relationships between field-based measures of strength and power, and golf club head speed. Journal of Strength and Conditioning (In Press)

Ayala, F., De Ste Croix, M., Sainz de Baranda, P., Santonja, F. 2012. Absolute reliability of isokinetic knee flexion and extension measurements adopting a prone position. Clinical functioning and physical imaging (In Press)

Maldonado-Martin, S., James, D.V.B., Munson, S.C., and De Ste Croix, M.B.A. 2012. Heart rate variability:  effect of exercise intensity on post-exercise response. Research Quarterly for Exercise and Sport (In press)

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2012. Reproducibility and criterion-related validity of sit-and-reach and toe touch tests for estimating hamstring flexibility in active young adults. Physical Therapy in Sport (In Press)

Ayala, F., Sainz de Baranda, P., De Ste Croix, M., Santonja, F. 2012. Validez y fiabilidad de los ratios de fuerza isocinética para la estimación de desequilibrios musculares Apunts Medicina de l’esport

Deighan, M.A., Serpell, B., Bitcom, M., and De Ste Croix, M.B.A., 2012. Knee joint strength ratios and effects of hip position in Rugby players. Journal of Strength and Conditioning Research 25 (7): 1959-67

Ayala, F., Sainz de Baranda, P., Santonja, F., De Ste Croix, M. 2012. Fiabilidad Absoluta de las pruebas distancia dedos planta y distancia dedos suelo en jugadores profesionales de fútbol sala. Revista Andaluza de Medicina de l’esport (in press)

Ayala, F., De Ste Croix, M., Sainz de Baranda, P., Santonja, F. 2012. Reliability of H/Q strength ratios adopting a prone position. International Journal of Sports Medicine (in Press)

Ayala, F., Sainz de Baranda, P., De Ste Croix, M., Santonja, F. 2012. Comparison of active stretching technique in males with normal and limited hamstring flexibility. Physical Therapy in Sport (In Press)
De Ste Croix, M.B.A., Mujika, I., Santisteban, J. and Iga, J. 2012. Non-metabolic specialisation of elite youth football players Journal of Sports Medicine and Physical Fitness (under review)

Ayala, F., De Ste Croix, M.B.A., Sainz de Baranda, P, Santonja, F. 2012. Acute effects of static and dynamic stretching on hamstrings total reaction time, pre-motor time and motor time Scandinavian Journal of Sports Medicine (Under review)

Ayala, F., Sainz de Baranda, P, De Ste Croix, M., Santonja, F. 2012. Concurrent validity and absolute reliability of sit-and-reach test and toe touch test for estimating hamstring flexibility in recreationally active young adults. Journal of Athletic Training (under review)

Ayala, F., De Ste Croix, M.B.A., Sainz de Baranda, P, Santonja, F. 2012. Acute effects of static and dynamic stretching on the hamstring eccentric length-tension relationship and H/Q ratios. Scandinavian Journal of Sports Medicine (Under Review)

Ayala, F., De Ste Croix, M.B.A., Sainz de Baranda, P, Santonja, F. 2012. Reliability of hamstrings total reaction time, pre-motor time and motor time International Journal of Sports Medicine

Ayala, F., Sainz de Baranda, P., De Ste Croix, M., Santonja, F. 2012. Fiabilidad y validez de las pruebas sit-and-reach: Revisión sistemática. Revista Andaluza de Medicina del Deporte (under review)

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2012. El uso de los estiramientos en el calentamiento: Diseño de rutinas de estiramiento y su impacto sobre el rendimiento deportivo (under review)

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2012. El uso de los estiramientos en el calentamiento: Efecto agudo del estiramiento sobre las diferentes pruebas de valoración. (under review) 2011

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2011. Criterion-related validity of four clinical tests used to measure hamstring flexibility in professional futsal players. Physical Therapy in Sport 11: 175-181

Ford, P., De Ste Croix, M., Lloyd, R., Meyers, R., Moosavi, M., Till, K., Williams, C., Oliver, J. 2011. The Long Term Athlete Development model: physiological evidence and application Journal of Sports Sciences 1-14 (iFirst)

Ayala, F., Sainz de Baranda, P., Cejudo, A., De Ste Croix, M. 2011. Efecto agudo el estiramiento sobre el rendimiento fisico: el uso de los estiramientos on el calentamiento. Ciencia, Cultura y Deporte 16: 27-36

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2010. Effect of active stretch on hip flexion range of motion in female professional futsal players. Journal of Sports Medicine and Physical Fitness 50: 428-435

Ayala, F., Sainz de Baranda, P., De Ste Croix, M. 2010. Efecto de un programa de estiramientos activos en jugadoras de fútbol sala de alto rendimiento. Ciencia, Cultura y Deporte 15: 159-167

Sauret, J., De Ste Croix, M.B.A., Deighan, M.A., James, D., and Iga, J. 2009. Reproducibility of an isokinetic eccentric muscle endurance task. European Journal of Sports Science  9 (5) pp 1-9

De Ste Croix, M.B.A., Deighan, M.A., Ratel, S. and Armstrong, N. 2009. Age and sex differences in isokinetic knee muscle endurance between young children and adults. Applied Physiology, Nutrition and Metabolism 34 (4) pp 725-31

De Ste Croix, M.B.A., and Nute, M. 2008. The effects of cognitive anxiety on the biomechanical characteristics of the golf swing. Biology of Sport 25 pp 3-11

James, D.V.B, Wood, D.M, Maberly, T.C.B. and De Ste Croix, M.B.A., 2007. Optimised versus corrected peak power for friction braked cycle ergometry in males and females.  Journal of Sports Sciences 25 (8) pp.859-867

De Ste Croix, M.B.A., Deighan, M.A., Armstrong, N. 2007. Functional Eccentric/Concentric ratio of knee extensors and flexors in pre-pubertal children, teenagers and adults. International Journal of Sports Medicine 28 pp. 768-772

Sigmund, E., De Ste Croix, M.B.A., Miklánková, L., Frömel, K. 2007. Physical activity patterns of kindergarten children in comparison to teenagers and young adults. European Journal of Public Health  April 07 pp 1-6

Deighan, M.A., De Ste Croix, M.B.A., Armstrong, N., and Welsman, J.R. 2006. Measurement of maximal muscle cross-sectional area of knee and elbow extensors and flexors in children, teenagers and adults. Journal of Sports Sciences 24 (5) pp. 543-546

De Ste Croix, M.B.A., and Pope, M. 2006. The effect of sodium bicarbonate loading on repeated non-motorised treadmill sprint performance of soccer players. Journal of Human Movement Studies 50 (3) pp. 149-156

Johnston, L.H., Warwick, J., De Ste Croix, M.B.A., and Crone, D. 2005. The nature of all ‘inappropriate referrals’ made to a countrywide physical activity referral scheme: Implications for practice. Health Education Journal 64 (1) pp. 58-69

De Ste Croix, M.B.A., Deighan, M.A., and Armstrong, N. 2004. Time to peak torque for knee and elbow extensors and flexors in children, teenagers and adults. Isokinetic and Exercise Science 12 (2) pp.143-148

De Ste Croix, M.B.A., Deighan, M.A., and Armstrong, N. 2003. Assessment and interpretation of isokinetic strength during growth and maturation. Sports Medicine 33 (10) pp. 727-743

De Ste Croix, M.B.A., Armstrong, N., and Welsman, J.R. 2003. Reliability of an isokinetic knee muscle endurance test in young children. Pediatric Exercise Science 15 (3) pp. 313-323

Deighan, M.A., De Ste Croix, M.B.A., and Armstrong, N. 2003. Reliability of isokinetic knee and elbow strength in 9/10 year old boys. Isokinetics and Exercise Science 11 (2) pp. 209-115

Santos, A.M.C., Armstrong, N, De Ste Croix, M.B.A., Sharpe, P., and Welsman, J.R.. 2003. Optimal peak power in relation to age, body size, gender and thigh muscle volume. Pediatric Exercise Science 15 (4) pp.

Chia, M., Armstrong, N., De Ste Croix, M.B.A. 2003. Relationship between isokinetic leg strength and wingate anaerobic test performance in young people. Journal of Physical Education and Recreation (Hong Kong)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R and Sharpe, P. 2002. Longitudinal changes in isokinetic leg strength in 10-14 year olds. Annals of Human Biology 29 (1) pp. 50-62

Santos, A.M.C., Welsman, J.R., De Ste Croix, M.B.A., and Armstrong, N. 2002. Age-and sex-related differences in optimal peak power. Pediatric Exercise Science 14 (2) pp. 202-212

De Ste Croix, M.B.A., Armstrong, N., Chia, M.Y.H., Welsman, J.R., Parsons, G., and Sharpe, P. 2001. Changes in short-term power output in 10 to 12 year olds. Journal of Sports Sciences 19 (2) pp. 141-148

De Ste Croix, M.B.A., Armstrong, N., and Welsman, J.R. 1999. Concentric isokinetic leg strength in pre-teen, teenage and adult males and females. Biology of Sport 16 (2) pp. 75-86

Books   

De Ste Croix, M.B.A. and Korff, T (2011) Paediatric Biomechanics and Motor Control: Theory and Application. Routledge (UK) (ISBN: 978-0-415-58018-2)

Book chapters

Williams, C. Wood, L. and De Ste Croix, M.B.A. 2011. Growth and Maturation. In M. De Ste Croix and T. Korff (Eds) Paediatric Biomechanical and Motor Control: Theory and Application. Routledge

Wood, L. and De Ste Croix, M.B.A. 2011. Development of Strength during childhood. In M. De Ste Croix and T. Korff (Eds) Paediatric Biomechanical and Motor Control: Theory and Application. Routledge

De Ste Croix, M.B.A. and Deighan M.A. 2011. Development of joint stability during childhood. In M. De Ste Croix and T. Korff (Eds) Paediatric Biomechanical and Motor Control: Theory and Application. Routledge

Owens, C. and De Ste Croix, M.B.A. 2011. Physical activity and sedentary behaviour and the transition from compulsory education. In ? (ed A. Parker) Human Kinetics (pending)

De Ste Croix, M.B.A., Iga, J., Fruer, S., Deighan, M., and James, D. 2010 Non-Contact ACL and hamstring injuries: eccentric hamstring training for injury prevention. In Exercise, Sports and Health (eds Schultz, H., Wright, P. and Hauser, T.) Chemnitz University Press (Germany)

Reynolds, L., De Ste Croix, M.B.A., and James, D. 2010 Acute post-exercise cardiovascular responses in healthy participants. In Exercise, Sports and Health (eds Schultz, H., Wright, P. and Hauser, T.) Chemnitz University Press (Germany)

El Nagar, Y., De Ste Croix, M.B.A., and James, D. 2010 Sex differences in the functional hamstring to quadriceps ratio and neuromuscular performance. In Exercise, Sports and Health (eds Schultz, H., Wright, P. and Hauser, T.) Chemnitz University Press (Germany)

De Ste Croix, M.B.A. 2008. Muscle strength. In Paediatric Exercise Science and Medicine (2nd edition) (ed Armstrong, N. and Van Mechlen, W) Oxford University Press, UK. Chapter 2.4

De Ste Croix, M.B.A. 2007. Muscle strength. In Paediatric Exercise Physiology (ed Armstrong, N.) Elsevier, UK. Chapter 3 pp. 47-69

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R., Winsley, R.J; Parsons, G. and Sharpe, P. 1997. Relationship of muscle strength with muscle volume in young children. In N. Armstrong, B.J. Kirby and J.R. Welsman (Eds) Children and Exercise XIX, Promoting Health and Well-Being, E and F N Spon, London, pp. 319-324

Academic conferences

Invited presentations - Keynote Speaker

De Ste Croix, M.B.A. 2013. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to Science and Medicine of Women’s Football Conference  Cardiff, UK (Oral)

De Ste Croix, M.B.A. 2013. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to Sports Medicine Conference  Gloucester, UK (Oral)

De Ste Croix, M.B.A. 2012. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to Northumbria University Research Conference  Newcastle, UK (Oral)

De Ste Croix, M.B.A. 2012. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to University of Basque Country Annual Conference  Bilbao, Spain (Oral)

De Ste Croix, M.B.A. 2012. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to Athletic Club Bilbao Medical Research seminar Series Bilbao, Spain (Oral)

De Ste Croix, M.B.A. 2012. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to Espanyol Football Club Medical Team Conference  Barcelona, Spain (Oral)

De Ste Croix, M.B.A. 2012. Protect her knees: The effect of football specific fatigue on dynamic knee stability in female youth footballers. Presented to Barcelona Football Club Medical Team Conference  Barcelona, Spain (Oral)

De Ste Croix, M.B.A. 2010. Girls at risk: prevent injury, enhance performance (PIEP) programme. Presented to 4th Researching Youth Sport Conference Loughborough, UK (Oral)

De Ste Croix, M.B.A. 2010. Is sitting 23.5hrs a day unrealistic for children? sedentary behaviour in children. Presented to Gloucestershire Health Research Network Seminars Gloucestershire University, UK (Oral)

De Ste Croix, M.B.A. 2009. Eccentric hamstring conditioning: the key to injury prevention? Presented to University of Chemnitz 2nd biennial conference, Chemnitz, Germany (Oral)

De Ste Croix, M.B.A. 2009. Physical activity and sedentary behaviour of children in the UK: is 23.5hrs a day sitting unrealistic? Presented to University of Basque Country Annual Conference  Bilbao, Spain (Oral)

De Ste Croix, M.B.A. 2008. Sport and Exercise Sciences in the UK: The role of Higher Education. Presented to Higher Education Convention Jersey, UK (Oral)

De Ste Croix, M.B.A. 2008. Using biomechanics to unravel the puzzles of motor development. Presented to BASES Annual Conference Brunel University, UK (Oral)

De Ste Croix, M.B.A. 2007. Paediatric Strength: Myths and Misnomers. Presented to University of Chemnitz, Chemnitz, Germany (Oral)

De Ste Croix, M.B.A. 2007. Ethics of laboratory based physiological assessment in young children. Presented to 2nd Researching Youth Sport Conference Brunel, UK (Oral)

De Ste Croix, M.B.A. 2007. Talent identification and the young athlete. Presented to University of Basque Country Annual Conference  Bilbao, Spain (Oral)

De Ste Croix, M.B.A. 2007. Are children non-metabolic specialists? Presented to University of Basque Country Annual Conference  Bilbao, Spain (Oral)

De Ste Croix, M.B.A. 2005. Ethics of physiological assessment in young children. Presented to Child Protection in Sport Unit Gloucester, UK (Oral)

De Ste Croix, M.B.A. 2004. Assessment of children’s isokinetic strength. Presented to IPRS Isokinetic Users Group London, UK (Oral)

De Ste Croix, M.B.A. 2003. Physical activity and young people: delivering an exercise prescription for a healthier childhood. Presented to the Jersey Health and Social Services Department Jersey, UK (Oral)

De Ste Croix, M.B.A. 2002. Training needs of primary care staff implementing the coronary heart disease national service framework. Presented to the Coronary Heart Disease Collaborative Exeter, UK (Oral)

De Ste Croix, M.B.A. 2001. The development of muscle strength in young people: Size matters!  Presented to the Institute of Clinical Science Exeter, UK (Oral)

De Ste Croix, M.B.A. 1999. The development of young people’s muscle strength: Reducing the risk of injury. Presented to the 2nd Annual Southampton Sports Injury Study Day Southampton, UK (Oral)

Conference presentations

De Ste Croix, M.B.A. 1996. Measuring physical activity (workshop). Presented to the British Association for Cardiac Rehabilitation Exeter, UK. (Oral)

De Ste Croix, M.B.A. 1996. Assessment of strength using isokinetic dynamometry. (workshop) Presented to the National Institute of Biology Exeter, UK. (Oral)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R., Winsley, R.J. 1997. Muscle strength and MRI determined thigh muscle volume in young girls. Presented to the Annual Conference of American College of Sports Medicine Denver, Colorado, USA. (Poster)

De Ste Croix, M.B.A., Armstrong, N. 1997. Isokinetic strength characteristics in young children. Presented to the Joint University and Health Services Research and Development Conference Exeter, UK. (Poster)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R., Winsley, R.J; Parsons, G. and Sharpe, P. 1997. Relationship of muscle strength with muscle volume in young children. Presented to the XIXth International Seminar on Pediatric Work Physiology Moretonhampstead, UK. (Oral)

Chia, M., Armstrong, N., De Ste Croix, M.B.A. 1998. Relationship between isokinetic leg strength and wingate anaerobic test performance in young people. Presented to the Annual Conference of American College of Sports Medicine Orlando, Florida, USA. (Oral)

De Ste Croix, M.B.A., Armstrong, N. and Welsman, J.R. 1998. The development of isokinetic concentric knee extension and flexion in 8 and 13 year old children. Presented to the 3rd Annual Congress of the European College of Sports Science Manchester, UK. (Oral)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R., Winsley, R.J. 1999. Muscle strength and MRI determined thigh muscle volume in young girls. Presented to the School of Postgraduate Medicine and Health Sciences academic evening Exeter, UK. (Poster)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R. 1999. Longitudinal changes in isokinetic leg strength in 10 to 12 year olds. Presented to the XXth International Seminar on Pediatric Work Physiology Rome, Italy (Oral)

Chia, M.Y.C., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 1999. Longitudinal changes in short term power output in young children. Presented to the XXth International Seminar on Pediatric Work Physiology Rome, Italy (Oral)

Santos, A.M.C., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 1999. Predictors of optimal peak power in girls. Presented to the XXth International Seminar on Pediatric Work Physiology Rome, Italy (Poster)

Santos, A.M.C., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 2000. Sex differences in optimised peak power in relation to thigh muscle volume. Presented to the School of Postgraduate Medicine and Health Sciences academic evening Exeter, UK. (Poster)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R. 2000. Longitudinal changes in isokinetic leg strength in 10-14 year olds. Presented to the 5th Annual Congress of the European College of Sports Science Jyvaskyla, Finland (Oral)

Santos, A.M.C., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 2000. Age- and sex-related changes in optimal peak power in males and females. Presented to the 5th Annual Congress of the European College of Sports Science Jyvaskyla, Finland (Poster)

Santos, A.M.C., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R., Fontes Ribeiro, C.A. 2000. Avalicao Da Potentcia Anerobia Maxima Optimizada Em Rapazes E Reparigas Em Relacao Ao Volume Muscular Da Cox. Presented to the 8th Congresso De Educacao Fisica E Ciencias Do Desporto Dos Paises De Lingua Portuguesa Lisbon, Portugal (Oral)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R., Sharpe, P. 2001. Isokinetic leg strength and thigh muscle cross-sectional area in 13-14 year olds. Presented to the XXIth International Seminar on Pediatric Work Physiology Ghent, Belgium (Oral)

Deighan, M.A., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 2001. Action-specific relationships in isokinetic knee extension and flexion peak torque in 9/10 year old children. Presented to the XXIth International Seminar on Pediatric Work Physiology Ghent, Belgium (Oral)

Bloxham, S.R., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 2001. An ergometer specific analysis of peak aerobic power and short-term power output in 11-12 year-old boys and girls. Presented to the XXIth International Seminar on Pediatric Work Physiology Ghent, Belgium (Oral)

Santos, A.M.C., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 2001. Optimal peak power in 12 to 14-year-old boys and girls. Presented to the XXIth International Seminar on Pediatric Work Physiology Ghent, Belgium (Poster)

Deighan, M.A., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R., Barrett, V. 2002. Peak torque per MRI-determined cross-sectional area of knee extensors and flexors in children, teenagers and adults. Presented to the 12th Commonwealth International Sports Conference Manchester, UK. (Oral)

Bloxham, S.R., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R. 2002. Cross Sectional Analysis of the Relationship Between Peak  2 and Peak Power Output in Young Males. Presented to the 12th Commonwealth International Sport Conference, Manchester, UK. (Poster)

De Ste Croix, M.B.A., Armstrong, N., Welsman, J.R. 2002. Assessment of the reliability of an isokinetic knee muscle endurance test in young children. Presented to the 7th Annual Congress of the European College of Sports Science Athens, Greece. (Oral)

Deighan, M.A., Armstrong, N., De Ste Croix, M.B.A., Welsman, J.R., Barrett, V. 2002. Peak torque per arm muscle cross-sectional area during growth. Presented to the 7th Annual Congress of the European College of Sports Science Athens, Greece. (Oral)

Nute, M., De Ste Croix, M.B.A., Dixon, S., Rees, T. 2003. An investigation into the effects of cognitive anxiety and physiological arousal on the biomechanical characteristics of the golf swing. Presented to the BASES Student Conference Coventry, UK (Poster)

De Ste Croix, M.B.A., Deighan, M.A., and Armstrong, N. 2003. Time to peak torque for knee and elbow extensors and flexors in children, teenagers and adults. Presented to the XXIInd International Seminar on Pediatric Work Physiology Porto, Portugal (Poster)

Deighan, M.A., De Ste Croix, M.B.A., Wood, L., Armstrong, N. 2003. The Eccentric/Concentric ratio of the knee and elbow extensors and flexors of male and female children and adults. Presented to the XXIInd International Seminar on Pediatric Work Physiology Porto, Portugal (Oral)

Deighan, M.A., De Ste Croix, M.B.A., Armstrong, N. 2004. Measurement of maximal muscle cross-sectional area of knee and elbow extensors and flexors in children, teenagers and adults. Presented to the 9th Annual Congress of the European College of Sport Science; Clermont Ferrand, France (Poster)

De Ste Croix, M.B.A., Spamer, M.J., and Winsley, R.J. 2005. Longitudinal investigation into factors attributing to successful performance of junior rugby players. Presented to XXIII International Seminar on Pediatric Work Physiology Gwat, Switzerland (Poster)

De Ste Croix, M.B.A., and Deighan, M.A. 2006. Sex differences in hamstring / quadriceps ratio after an isokinetic endurance trial. Presented to 11th Annual Congress of the European College of Sport Science; Lausanne, Switzerland (Poster)

De Ste Croix, M.B.A., and Deighan, M.A. 2007. Age and sex associated differences in isokinetic muscle endurance. Presented to XXIV International Seminar on Pediatric Work Physiology; Tartu, Estonia (Oral)

Downs, N., Crone, D., Kilgour, L., and De Ste Croix, M. 2008. Visibility, Appropriateness and Effectiveness: A qualitative investigation into the principles of Choosing Health in health promotion practice. Presented to International Inter-professional Health and Social Care Conference Salford, UK (Poster)

De Ste Croix, M.B.A., Sauret, J., Deighan, M.A., James, D., and Iga, J. 2008. Reproducibility of an isokinetic eccentric muscle endurance task. Presented to 13th Annual Congress of the European College of Sport Science; Estoril, Portugal (Poster)

De Ste Croix, M.B.A., Mujika, I., Santisteban, J., and Iga, J. 2008. Non-metabolic specialisation in elite youth football players . Presented to 13th Annual Congress of the European College of Sport Science; Estoril, Portugal (Poster)

Munson, S., James, D., De Ste Croix, M. 2008. Heart rate variability: effect of intensity on post-exercise response. Presented to 13th Annual Congress of the British Association of Sport and Exercise Science; Brunel, UK (Poster)

Owens, C., Crone, D., James, D., and De Ste Croix, M.B.A.  2010. Sport and physical activity participation and sedentarism among adolescents: exploring the transition from compulsory education. Presented to 18th Annual Public Health Forum, Bournemouth, UK (Poster)

Owens, C., Crone, D., James, D., and De Ste Croix, M.B.A.  2010. Sport and physical activity participation and sedentarism among adolescents: exploring the transition from compulsory education. Presented to Gloucestershire Health Research Network Seminars, Gloucester, UK (Poster)

Tabrett, M., Deighan, M.A. and De Ste Croix, M.B.A. 2011. The effect of isokinetic eccentric fatigue on angle specific functional hamstring to quadriceps ratio. Presented to  British Association of Sport and Exercise Science Annual Student Conference, Chester (Poster)

Sinclair, P., Lloyd, R., De Ste Croix M.B.A., Oliver, J.L. 2011. The effect of whole body vibration on the reactive strength index during maximal and sub maximal hopping. To be presented to 8th UKSCA annual conference, Stirling (Poster)

De Ste Croix, M.B.A., and Share, K. 2011. The influence of a 10 week resistance training programme on muscle strength, body composition and endurance performance in children. To be presented to XXVIth International seminar on Pediatric Work Physiology, Exeter (Oral)

De Ste Croix, M.B.A., El Nagar, Y., and James, D. 2011. Effect of joint angle and movement velocity on sex differences in the functional hamstring/quadriceps ratio. 16th Annual Congress of the European College of Sports Sciences, Liverpool (Oral)

De Ste Croix, M.B.A., El Nagar, Y., and James, D. 2011. Sex differences in neuromuscular performance of the knee: implications for injury. 16th Annual Congress of the European College of Sports Sciences, Liverpool (Poster)

Ayala, F., De Ste Croix, M., Sainz de Baranda, P., 2011. Effects of static stretching on the hamstrings-to-quadriceps ratio in recreationally active males. 16th Annual Congress of the European College of Sports Sciences, Liverpool (Poster)

Ayala, F., De Ste Croix, M., Sainz de Baranda, P., 2011. Effects of dynamic stretching on the hamstrings-to-quadriceps functional ratio in recreationally active females 16th Annual Congress of the European College of Sports Sciences, Liverpool (Poster)

Reynolds, L., James, D., and De Ste Croix, M.B.A. 2011. Acute post-exercise cardiovascular responses in healthy male participants. Presented to BASES Annual Conference University of Essex, UK

De Ste Croix, M.B.A., El Nagar, Y., and James, D. 2011. Effect of joint angle and movement velocity on sex differences in the functional hamstring/quadriceps ratio. University of Chemnitz 3rd Biennial research conference, Gloucester (Oral)

Green, P., Lloyd, R., De Ste Croix, M.B.A., Oliver, J. and Faigenbaum, A. 2012. The importance of Fundamental movement skill (FMS) development for health, physical activity and performance: a review. London Institute of Sport Strength & Conditioning Conference University of Middlesex (Poster)

Clarke, R., Lloyd, R., Reed, P., De Ste Croix, M.B.A., Oliver, J. The effects of heavy resistance exercise on leg stiffness during submaximal hopping. 2012. London Institute of Sport Strength & Conditioning Conference University of Middlesex (Poster)

Furneaux, L. and De Ste Croix, M.B.A. 2012. The effect of isokinetic concentric and eccentric fatigue on sex differences in knee joint position sense. British Association of Sport and Exercise Science Annual Student Conference, University of East London (Poster)

De Ste Croix, M.B.A., Priestley, A., Lloyd, R., and Oliver, J. 2012 Soccer specific fatigue and knee stability in female youth players. XXI International Conference on Sports Rehabilitation and Traumatology London (Poster)

Clarke, R., Lloyd, R., Read, P., De Ste Croix, M., and Oliver, J. 2012 The effects of heavy resistance exercise on leg stiffness during sub-maximal hopping. 8th UK Strength and Conditioning Association Annual Conference. London (Poster)

De Ste Croix, M.B.A., Priestley, A., Lloyd, R., and Oliver, J. 2013 Age and maturation related differences in leg stiffness following soccer specific fatigue in female youth players. XXI International Conference on Sports Rehabilitation and Traumatology London (Oral)

De Ste Croix, M.B.A., El Nagar, Y., Iga, J. and James, D. 2013. Sex differences in muscular and neuromuscular knee stability following a fatigue task. 18th Annual Congress of the European College of Sports Sciences, Barcelona, Spain (Oral)

De Ste Croix, M.B.A., Priestley, A., Lloyd, R., and Oliver, J. 2013 Age and maturation related differences in electromechanical delay following soccer specific fatigue in female youth players. 18th Annual Congress of the European College of Sports Sciences, Barcelona, Spain (Oral)

Oliver, J., De Ste Croix,  M.B.A., Lloyd, R., and Williams, C.A. 2013 Neuromuscular control of leg stiffness following soccer-specific exercise . 18th Annual Congress of the European College of Sports Sciences, Barcelona, Spain (Oral)

Lloyd, R., Oliver, J., Whitney, A., and De Ste Croix, M.B.A. 2013 Acute and accumulated fatigue measured by stretch-shortening cycle function in youth rugby union players during a 7-week competition cycle National strength and conditioning association annual conference

Membership of professional bodies 

  • British Association of Sport and Exercise Science
  • European College of Sports Science

Currently external examining 

University of Central Lancashire - Re-validation of BSc Sports Science and BSc Exercise, Nutrition
and Health (2006)

Liverpool John Moores University - Re-validation of BSc Exercise Science (2008)

Liverpool Hope University - BSc Sport and Exercise Science 2006-10

Northumbria University - BSc Sport and Exercise Science 2006–10

Liverpool John Moores University – BSc Exercise Science 2009 – 2012

Marjons (Plymouth University) – BSc Exercise and Health 2011 -  

University of Gloucestershire, The Park, Cheltenham, Gloucestershire, GL50 2RH. Telephone +44 (0)844 8010001.