Olivier Girard

Summary

Publications

  1. ncbi request reprint Combining heat stress and moderate hypoxia reduces cycling time to exhaustion without modifying neuromuscular fatigue characteristics
    Olivier Girard
    Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
    Eur J Appl Physiol 114:1521-32. 2014
  2. ncbi request reprint Changes in running mechanics and spring-mass behaviour during a 5-km time trial
    O Girard
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Int J Sports Med 34:832-40. 2013
  3. pmc Neuromuscular adjustments of the quadriceps muscle after repeated cycling sprints
    Olivier Girard
    ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    PLoS ONE 8:e61793. 2013
  4. doi request reprint Hot conditions improve power output during repeated cycling sprints without modifying neuromuscular fatigue characteristics
    Olivier Girard
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Eur J Appl Physiol 113:359-69. 2013
  5. doi request reprint Alteration in neuromuscular function after a 5 km running time trial
    O Girard
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
    Eur J Appl Physiol 112:2323-30. 2012
  6. ncbi request reprint Plantar pressures in the tennis serve
    Olivier Girard
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    J Sports Sci 28:873-80. 2010
  7. ncbi request reprint Neuromuscular fatigue during a prolonged intermittent exercise: Application to tennis
    Olivier Girard
    UPRES EA 2991, Faculty of Sport Sciences, Montpellier, France
    J Electromyogr Kinesiol 18:1038-46. 2008
  8. ncbi request reprint Game analysis and energy requirements of elite squash
    Olivier Girard
    UPRES EA 2991, Faculty of Sport Sciences, Montpellier, France
    J Strength Cond Res 21:909-14. 2007
  9. doi request reprint Repeated-sprint ability - part I: factors contributing to fatigue
    Olivier Girard
    Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Research and Education Centre, Doha, Qatar
    Sports Med 41:673-94. 2011
  10. doi request reprint Repeated sprinting on natural grass impairs vertical stiffness but does not alter plantar loading in soccer players
    Olivier Girard
    ASPETAR, Research and Education Centre, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Eur J Appl Physiol 111:2547-55. 2011

Detail Information

Publications37

  1. ncbi request reprint Combining heat stress and moderate hypoxia reduces cycling time to exhaustion without modifying neuromuscular fatigue characteristics
    Olivier Girard
    Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
    Eur J Appl Physiol 114:1521-32. 2014
    ..hot (35 °C/40 % rH)] and hypoxia [sea level (FiO2 0.21) vs. moderate altitude (FiO2 0.15)] on exercise capacity and neuromuscular fatigue characteristics...
  2. ncbi request reprint Changes in running mechanics and spring-mass behaviour during a 5-km time trial
    O Girard
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Int J Sports Med 34:832-40. 2013
    ..3%; P>0.05). Spring-mass behaviour progressively changes during a 5-km time trial towards deteriorated vertical stiffness, which alters impact and force production characteristics. ..
  3. pmc Neuromuscular adjustments of the quadriceps muscle after repeated cycling sprints
    Olivier Girard
    ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    PLoS ONE 8:e61793. 2013
    ..This study investigated the supraspinal processes of fatigue of the quadriceps muscle in response to repeated cycling sprints...
  4. doi request reprint Hot conditions improve power output during repeated cycling sprints without modifying neuromuscular fatigue characteristics
    Olivier Girard
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Eur J Appl Physiol 113:359-69. 2013
    ..001) by ~42 %, independently of the ambient temperature. In conclusion, heat exposure has no effect on the pattern and the extent of isometric knee extensor fatigue following repeated cycling sprints in the absence of hyperthermia...
  5. doi request reprint Alteration in neuromuscular function after a 5 km running time trial
    O Girard
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
    Eur J Appl Physiol 112:2323-30. 2012
    ..Fatigue also decreased the magnitude of efferent motor outflow from spinal motor neurons to the plantar flexors and part of this suboptimal neural drive is the result of an inhibition of soleus motoneuron pool reflex excitability...
  6. ncbi request reprint Plantar pressures in the tennis serve
    Olivier Girard
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    J Sports Sci 28:873-80. 2010
    ..9%, P < 0.01) under the medial forefoot. The type of serve and the stance style adopted have a significant effect on foot loading. Such findings might help improve mechanical efficiency of the serve...
  7. ncbi request reprint Neuromuscular fatigue during a prolonged intermittent exercise: Application to tennis
    Olivier Girard
    UPRES EA 2991, Faculty of Sport Sciences, Montpellier, France
    J Electromyogr Kinesiol 18:1038-46. 2008
    ..001; -12%) after exercise. Central activation failure and alterations in excitation-contraction coupling are probable mechanisms contributing to the moderate impairment of the neuromuscular function during prolonged tennis playing...
  8. ncbi request reprint Game analysis and energy requirements of elite squash
    Olivier Girard
    UPRES EA 2991, Faculty of Sport Sciences, Montpellier, France
    J Strength Cond Res 21:909-14. 2007
    ..By showing the contribution of the different energy pathways and variables easily controllable during training sessions (e.g., HR, rally duration, lactate), the accurate prescription of conditioning session is improved...
  9. doi request reprint Repeated-sprint ability - part I: factors contributing to fatigue
    Olivier Girard
    Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Research and Education Centre, Doha, Qatar
    Sports Med 41:673-94. 2011
    ..Pending confirmatory research, other factors such as stiffness regulation, hypoglycaemia, muscle damage and hostile environments (e.g. heat, hypoxia) are also likely to compromise fatigue resistance during repeated-sprint protocols...
  10. doi request reprint Repeated sprinting on natural grass impairs vertical stiffness but does not alter plantar loading in soccer players
    Olivier Girard
    ASPETAR, Research and Education Centre, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Eur J Appl Physiol 111:2547-55. 2011
    ....
  11. ncbi request reprint Influence of restricted knee motion during the flat first serve in tennis
    Olivier Girard
    UPRES EA 2991, Faculty of Sport Sciences, Montpellier, France
    J Strength Cond Res 21:950-7. 2007
    ..Knee motion is a significant contributor to serving effectiveness whatever the performance level. Skilled players perform faster serves than their less skilled counterparts, and this is partly related to a more forceful lower limb drive...
  12. doi request reprint Changes in spring-mass model characteristics during repeated running sprints
    Olivier Girard
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
    Eur J Appl Physiol 111:125-34. 2011
    ..Maintaining faster stride frequencies through retaining higher vertical stiffness is a prerequisite to improve performance during repeated sprinting...
  13. doi request reprint Neuromuscular fatigue in racquet sports
    Olivier Girard
    EA 2991 Motor Efficiency and Deficiency Lab, Faculty of Sport Sciences, University of Montpellier 1, 700, avenue du Pic St Loup, Montpellier 34090, France
    Neurol Clin 26:181-94; x. 2008
    ..These alterations in neuromuscular function contribute to decrease in racquet sports performance observed under fatigue...
  14. doi request reprint Alteration of neuromuscular function in squash
    Olivier Girard
    ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    J Sci Med Sport 13:172-7. 2010
    ..Physical conditioners should consider these effects when defining their training programs for squash players...
  15. doi request reprint Running versus strength-based warm-up: acute effects on isometric knee extension function
    Olivier Girard
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
    Eur J Appl Physiol 106:573-81. 2009
    ..Running- and strength-based warm ups induce similar increase in knee extensors force-generating capacity by improving the muscle activation. Both protocols have similar effects on M-wave and isometric twitch characteristics...
  16. doi request reprint Physical determinants of tennis performance in competitive teenage players
    Olivier Girard
    ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Research and Education Center, Doha, Qatar
    J Strength Cond Res 23:1867-72. 2009
    ..By monitoring regularly such physical abilities during puberty, the conditioning coach can modify a program to compensate for the imbalances. This would in turn minimize the risks of injuries during this critical period...
  17. doi request reprint Spinal modulations accompany peripheral fatigue during prolonged tennis playing
    O Girard
    Research and Education Center, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Scand J Med Sci Sports 21:455-64. 2011
    ..During prolonged tennis playing, the compromised voluntary strength capacity is linked to a reduced neural input to the working muscles. This central activation deficit partly results from a modulation in spinal loop properties...
  18. doi request reprint Effect of orthoses on changes in neuromuscular control and aerobic cost of a 1-h run
    Luke A Kelly
    ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Med Sci Sports Exerc 43:2335-43. 2011
    ..The study's purpose was to determine the effect of foot orthoses on neuromuscular control and the aerobic cost of running...
  19. doi request reprint M-wave, H- and V-reflex recruitment curves during maximal voluntary contraction
    Sebastien Racinais
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    J Clin Neurophysiol 30:415-21. 2013
    ..To investigate whether the H reflex-M wave recruitment curves obtained during maximal voluntary contraction (MVC) differ from rest and to determine the stimulation intensities allowing to record stable reflex responses...
  20. ncbi request reprint Position statement--altitude training for improving team-sport players' performance: current knowledge and unresolved issues
    Olivier Girard
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Br J Sports Med 47:i8-16. 2013
    ....
  21. doi request reprint Redetermination of the optimal stimulation intensity modifies resting H-reflex recovery after a sustained moderate-intensity muscle contraction
    Thomas Rupp
    Faculty of Sport Sciences, EA 2991 Motor Efficiency and Deficiency Laboratory, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France
    Muscle Nerve 41:642-50. 2010
    ..It is therefore more appropriate to redefine the optimal stimulation intensity to evoke H(max) (using mini-recruitment curves) when the purpose is to analyze spinal modulation during the recovery phase...
  22. doi request reprint Neuromuscular failure is unlikely to explain the early exercise cessation in hot ambient conditions
    Sebastien Racinais
    Research and Education Centre, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Psychophysiology 49:853-65. 2012
    ..17 min 9 s) that occurred when participants reached maximal perceived exertion (19.2 vs. 19.1, ns) with higher core temperature (38.7°C vs. 38.2°C, p < .05) and heart rate (184 bpm vs. 179 bpm, p < .05)...
  23. ncbi request reprint Neural and muscular adjustments following repeated running sprints
    Stephane Perrey
    Laboratoire EA 2991 Efficience et Déficience Motrices, UFR STAPS, Faculté des Sciences du Sports, Universite Montpellier 1, 700 Avenue du Pic Saint Loup, 34090, Montpellier, France
    Eur J Appl Physiol 109:1027-36. 2010
    ..Acute muscle fatigue induced by RS running exercise is mainly peripheral as the short-term (30 min) recovery pattern of plantar flexors contractile properties follows that of the voluntary force-generating capacity...
  24. ncbi request reprint Lower-limb activity during the power serve in tennis: effects of performance level
    Olivier Girard
    UPRES EA 3759, Faculty of Sports Sciences, Montpellier, France
    Med Sci Sports Exerc 37:1021-9. 2005
    ..The aim of the present study was to investigate the differences in lower-limb activity during the tennis power serve between players of different performance levels...
  25. doi request reprint Hot ambient conditions do not alter intermittent cycling sprint performance
    Fuad Almudehki
    Exercise and Sports Science Department ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    J Sci Med Sport 15:148-52. 2012
    ..To investigate the effect of hot exposure on the ability to perform intermittent cycling sprints...
  26. ncbi request reprint Coping with heat stress during match-play tennis: does an individualised hydration regimen enhance performance and recovery?
    Julien D Périard
    Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital
    Br J Sports Med 48:i64-70. 2014
    ....
  27. doi request reprint Cognitive decrements do not follow neuromuscular alterations during passive heat exposure
    Nadia Gaoua
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Int J Hyperthermia 27:10-9. 2011
    ..3°C). These alterations in cortex excitability failed to explain the cognitive alterations that can originate from an additional cognitive load imposed by temperature variations...
  28. doi request reprint Heart rate responses during small-sided games and short intermittent running training in elite soccer players: a comparative study
    Alexandre Dellal
    Psychophysiology of Motor Behaviour and Sports Laboratory, Science and Exercise University, Strasbourg, France
    J Strength Cond Res 22:1449-57. 2008
    ..The sided game method can be used to bring more variety during training, mixing physical, technical, and tactical training approaching the intensity of short-duration intermittent running but with higher intersubject variability...
  29. ncbi request reprint Does living and working in a hot environment induce clinically relevant changes in immune function and voluntary force production capacity?
    Wade Knez
    ASPETAR, Orthopaedic and Sports Medicine Hospital, Athlete Health and Performance, Qatar
    Ind Health 52:235-9. 2014
    ..In summary, working and living in hot conditions impact on markers of immune function and work capacity; however by self-regulating energy expenditure, immune markers remained in a healthy reference range. ..
  30. ncbi request reprint Heat stress does not exacerbate tennis-induced alterations in physical performance
    Olivier Girard
    Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Br J Sports Med 48:i39-i44. 2014
    ..To assess the time course of changes in physical performance in response to match-play tennis under heat stress...
  31. ncbi request reprint On the use of mobile inflatable hypoxic marquees for sport-specific altitude training in team sports
    Olivier Girard
    Research and Education Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Br J Sports Med 47:i121-3. 2013
    ....
  32. ncbi request reprint Tennis in hot and cool conditions decreases the rapid muscle torque production capacity of the knee extensors but not of the plantar flexors
    Olivier Girard
    Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Athlete Health and Performance Research Centre, Doha, Qatar
    Br J Sports Med 48:i52-8. 2014
    ..To assess the time course of changes in rapid muscle force/torque production capacity and neuromuscular activity of lower limb muscles in response to prolonged (∼2 h) match-play tennis under heat stress...
  33. ncbi request reprint Neuromuscular adjustments of the knee extensors and plantar flexors following match-play tennis in the heat
    Julien D Périard
    Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Br J Sports Med 48:i45-i51. 2014
    ..This study tested the hypothesis that impairments in lower limb maximal strength and voluntary activation (VA) are exacerbated following match-play tennis in hot compared with cool conditions...
  34. ncbi request reprint Thermal, physiological and perceptual strain mediate alterations in match-play tennis under heat stress
    Julien D Périard
    Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
    Br J Sports Med 48:i32-i38. 2014
    ....
  35. doi request reprint Markers of muscle damage and performance recovery after exercise in the heat
    Lars Nybo
    Department of Exercise and Sport Sciences, University of Copenhagen, Denmark
    Med Sci Sports Exerc 45:860-8. 2013
    ..This study aimed to determine whether competitive intermittent exercise in the heat affects recovery, aggravates markers of muscle fiber damage, and delays the recovery of performance and muscle glycogen stores...