N Armstrong

Summary

Affiliation: University of Exeter
Country: UK

Publications

  1. ncbi request reprint Cardiovascular responses to submaximal treadmill running in 11 to 13 year olds
    N Armstrong
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, UK
    Acta Paediatr 91:125-31. 2002
  2. ncbi request reprint Changes in jump performance and muscle activity following soccer-specific exercise
    Jon Oliver
    Cardiff School of Sport, University of Wales Institute Cardiff, Cyncoed Road, Cardiff CF23 6XD, UK
    J Sports Sci 26:141-8. 2008
  3. ncbi request reprint Prepubescents' ventilatory responses to exercise with reference to sex and body size
    N Armstrong
    Children s Health and Exercise Research Centre, Institute of Clinical Science, University of Exeter, UK
    Chest 112:1554-60. 1997
  4. ncbi request reprint The physical activity patterns of European youth with reference to methods of assessment
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Sports Med 36:1067-86. 2006
  5. ncbi request reprint Aerobic fitness: what are we measuring?
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 50:5-25. 2007
  6. doi request reprint Non-invasive methods in paediatric exercise physiology
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Appl Physiol Nutr Metab 33:402-10. 2008
  7. doi request reprint Aerobic fitness and its relationship to sport, exercise training and habitual physical activity during youth
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Northcote House, The Queen s drive, Exeter EX4 4QJ, UK
    Br J Sports Med 45:849-58. 2011
  8. ncbi request reprint Essay: Physiology of the child athlete
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, UK
    Lancet 366:S44-5. 2005
  9. doi request reprint Physiology of elite young male athletes
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 56:1-22. 2011
  10. doi request reprint Endurance training and elite young athletes
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 56:59-83. 2011

Collaborators

Detail Information

Publications51

  1. ncbi request reprint Cardiovascular responses to submaximal treadmill running in 11 to 13 year olds
    N Armstrong
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, UK
    Acta Paediatr 91:125-31. 2002
    ....
  2. ncbi request reprint Changes in jump performance and muscle activity following soccer-specific exercise
    Jon Oliver
    Cardiff School of Sport, University of Wales Institute Cardiff, Cyncoed Road, Cardiff CF23 6XD, UK
    J Sports Sci 26:141-8. 2008
    ..Reductions in muscle activity were greatest for the drop jump, suggesting an influence of muscle stretch and loading on reduced muscle activity when fatigued...
  3. ncbi request reprint Prepubescents' ventilatory responses to exercise with reference to sex and body size
    N Armstrong
    Children s Health and Exercise Research Centre, Institute of Clinical Science, University of Exeter, UK
    Chest 112:1554-60. 1997
    ..To examine the ventilatory responses of prepubescent children to submaximal and peak exercise using appropriate allometric modeling to control for differences in body size...
  4. ncbi request reprint The physical activity patterns of European youth with reference to methods of assessment
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Sports Med 36:1067-86. 2006
    ....
  5. ncbi request reprint Aerobic fitness: what are we measuring?
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 50:5-25. 2007
    ..The chapter therefore concludes with a discussion of insights into aerobic fitness provided by the emerging database on young people's oxygen uptake kinetics responses to exercise of different intensities...
  6. doi request reprint Non-invasive methods in paediatric exercise physiology
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Appl Physiol Nutr Metab 33:402-10. 2008
    ..It therefore appears that we might have available the tools necessary to answer some of the elegant questions raised by Professor Bar-Or over 25 years ago...
  7. doi request reprint Aerobic fitness and its relationship to sport, exercise training and habitual physical activity during youth
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Northcote House, The Queen s drive, Exeter EX4 4QJ, UK
    Br J Sports Med 45:849-58. 2011
    ..To analyse aerobic fitness and its relationship with sport participation, exercise training and habitual physical activity (HPA) during youth...
  8. ncbi request reprint Essay: Physiology of the child athlete
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, UK
    Lancet 366:S44-5. 2005
  9. doi request reprint Physiology of elite young male athletes
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 56:1-22. 2011
    ..Boys are not mini-men and coaches and parents should focus on providing opportunities for all boys and on nurturing talent irrespective of the ticking of individual biological clocks...
  10. doi request reprint Endurance training and elite young athletes
    Neil Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 56:59-83. 2011
    ..Empirical evidence strongly indicates that both trained and untrained young people can benefit from endurance training but the relative intensity of exercise required for optimum benefits is higher than that recommended for adults...
  11. ncbi request reprint Longitudinal changes in 11-13-year-olds' physical activity
    N Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, UK
    Acta Paediatr 89:775-80. 2000
    ..Body mass and fatness were not significant explanatory variables, but an additional decrement in activity was evident in late maturity...
  12. ncbi request reprint Peak oxygen uptake in relation to growth and maturation in 11- to 17-year-old humans
    N Armstrong
    Children s Health and Exercise Research Centre, School of Postgraduate Medicine and Health Sciences, University of Exeter, UK
    Eur J Appl Physiol 85:546-51. 2001
    ..Fat-free mass was the dominant influence on the growth of VO2peak but the multilevel regression models demonstrated that, with body size and fatness allowed for, VO2peak increased with age and maturation in both sexes...
  13. ncbi request reprint Peak oxygen uptake and maturation in 12-yr olds
    N Armstrong
    Children s Health and Exercise Research Centre, Institute of Clinical Science, University of Exeter, UK
    Med Sci Sports Exerc 30:165-9. 1998
    ..This effect may have been masked in previous studies by the inappropriate use of peak VO2 in ratio with body mass...
  14. ncbi request reprint Modeling growth and maturation changes in peak oxygen uptake in 11-13 yr olds
    N Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, United Kingdom
    J Appl Physiol 87:2230-6. 1999
    ..The body mass exponent almost doubled, but the age-by-gender interaction term was consistent with the initial model...
  15. pmc Short term power output in relation to growth and maturation
    N Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, UK
    Br J Sports Med 35:118-24. 2001
    ..To examine short term power output during growth and maturation using a multilevel modelling approach...
  16. ncbi request reprint Longitudinal changes in young people's short-term power output
    N Armstrong
    Children s Health and Exercise Research Centre, University of Exeter, United Kingdom
    Med Sci Sports Exerc 32:1140-5. 2000
    ..The influences of age, body size, skin-fold thickness, gender, and maturation on the short-term power output of young people were examined using multilevel modelling...
  17. ncbi request reprint Longitudinal changes in submaximal oxygen uptake in 11- to 13-year-olds
    J R Welsman
    Children s Health and Exercise Research Centre, University of Exeter, UK
    J Sports Sci 18:183-9. 2000
    ..When differences in body mass and skinfolds were controlled for, there was still a difference between the sexes in submaximal VO2, with girls becoming increasingly more economical with age...
  18. ncbi request reprint Longitudinal changes in isokinetic leg strength in 10-14-year-olds
    M B A De Ste Croix
    Children s Health and Exercise Research Centre, School of Postgraduate Medicine and Health Science, University of Exeter, UK
    Ann Hum Biol 29:50-62. 2002
    ..Age, maturity and thigh muscle CSA were all non-explanatory variables in the production of PET and PFT once body size had been controlled for...
  19. doi request reprint Establishing maximal oxygen uptake in young people during a ramp cycle test to exhaustion
    A R Barker
    School of Sport and Health Sciences, University of Exeter, Exeter EX1 2LU, UK
    Br J Sports Med 45:498-503. 2011
    ....
  20. ncbi request reprint Changes in short-term power output in 10- to 12-year-olds
    M B De Ste Croix
    Children s Health and Exercise Research Centre, School of Postgraduate Medicine and Health Sciences, University of Exeter, UK
    J Sports Sci 19:141-8. 2001
    ..05). In conclusion, thigh muscle volume exerts a positive influence on young people's short-term power output, which is additional to the effects of body mass, sum of skinfolds and age...
  21. doi request reprint A survey of exercise testing and training in UK cystic fibrosis clinics
    D Stevens
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, St Luke s Campus, Heavitree Road, Exeter, EX1 2LU, UK
    J Cyst Fibros 9:302-6. 2010
    ..Exercise testing is a valuable prognostic tool and exercise training has many health benefits in cystic fibrosis (CF). The objective of this study was to survey the provision of exercise testing and training in UK CF clinics...
  22. doi request reprint Muscle phosphocreatine kinetics in children and adults at the onset and offset of moderate-intensity exercise
    Alan R Barker
    Children s Health and Exercise Research Centre, St Luke s Campus University of Exeter, Exeter, EX1 2LU, United Kingdom
    J Appl Physiol 105:446-56. 2008
    ....
  23. ncbi request reprint Effects of age and recovery duration on performance during multiple treadmill sprints
    S Ratel
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, Devon, United Kingdom
    Int J Sports Med 27:1-8. 2006
    ..Despite the decrease in power and force outputs with R180, the young men were able to maintain their running velocity during the test...
  24. doi request reprint Early oxygen uptake recovery following exercise testing in children with chronic chest diseases
    D Stevens
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, Exeter, Devon, UK
    Pediatr Pulmonol 44:480-8. 2009
    ..A significant relationship was found between VO2(peak) and early VO2 recovery (r = -0.39, P = 0.044) in the children with CCD, showing that a greater aerobic fitness corresponded with a faster recovery...
  25. ncbi request reprint Does aerobic fitness influence microvascular function in healthy adults at risk of developing Type 2 diabetes?
    A R Middlebrooke
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, Exeter, UK
    Diabet Med 22:483-9. 2005
    ..To investigate whether aerobic fitness is associated with skin microvascular function in healthy adults with an increased risk of developing Type 2 diabetes...
  26. doi request reprint Sex difference in peak oxygen uptake in prepubertal children
    Richard J Winsley
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    J Sci Med Sport 12:647-51. 2009
    ..Sex differences in peripheral factors such as muscle fibre type profile, may affect A-VO(2) difference and underlie prepubertal boys' higher peak V O(2)...
  27. doi request reprint Exercise testing elite young athletes
    Alan R Barker
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Med Sport Sci 56:106-25. 2011
    ..The unique issues and considerations of providing continued physiological support to young athletes are discussed...
  28. doi request reprint Quadriceps muscle energetics during incremental exercise in children and adults
    Alan R Barker
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, Exeter, United Kingdom
    Med Sci Sports Exerc 42:1303-13. 2010
    ..This study tested the hypothesis that the muscle metabolic responses of 9- to 12-yr-old children and young adults during incremental quadriceps exercise are dependent on age and sex...
  29. ncbi request reprint Insights into developmental muscle metabolism through the use of 31P-magnetic resonance spectroscopy: a review
    Alan R Barker
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, UK
    Pediatr Exerc Sci 22:350-68. 2010
    ..In addition, an overview of the basic principles of (31)P-MRS and its application to the study of muscle metabolism is provided and discussed in relation to child-specific methodological concerns when using this technique...
  30. ncbi request reprint Aerobic fitness and visceral adipose tissue in children
    Richard J Winsley
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Acta Paediatr 95:1435-8. 2006
    ..To determine the relationship between aerobic fitness (peak VO2) and the volume of visceral adipose tissue (VAT) in children...
  31. ncbi request reprint Oxygen uptake kinetics in children and adults after the onset of moderate-intensity exercise
    Samantha G Fawkner
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, UK
    J Sports Sci 20:319-26. 2002
    ..05). A significant relationship between the time constant and peak VO2 was found only in adult males (P<0.05). A shorter time constant in children may reflect an enhanced potential for oxidative metabolism...
  32. ncbi request reprint Prediction of visceral adipose tissue using air displacement plethysmography in children
    Richard J Winsley
    Children s Health and Exercise Research Centre, University of Exeter, Devon, UK
    Obes Res 13:2048-51. 2005
    ..To determine the ability of air displacement plethysmography (ADP) to predict visceral adipose tissue (VAT) volume in children...
  33. ncbi request reprint Oxygen uptake kinetic response to exercise in children
    Samantha Fawkner
    School of Sport and Health Sciences, Children s Health and Exercise Research Centre, University of Exeter, Heavitree Road, Exeter EX1 2LU, UK
    Sports Med 33:651-69. 2003
    ..VO2 and tau in children. However, sex differences in the response to exercise intensities above the anaerobic threshold are identified and discussed...
  34. doi request reprint The influence of priming exercise on oxygen uptake, cardiac output, and muscle oxygenation kinetics during very heavy-intensity exercise in 9- to 13-yr-old boys
    Alan R Barker
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, Univ of Exeter, Exeter, EX1 2LU, UK
    J Appl Physiol 109:491-500. 2010
    ..048). These results suggest that phase II Vo(2) kinetics in young boys is principally limited by intrinsic muscle metabolic factors, whereas the Vo(2) total phase II and slow component amplitudes may be O(2) delivery sensitive...
  35. ncbi request reprint Assessment and interpretation of isokinetic muscle strength during growth and maturation
    Mark De Ste Croix
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, Exeter, UK
    Sports Med 33:727-43. 2003
    ..Future studies should preferably be longitudinal in nature and examine known covariates simultaneously using appropriate statistical techniques...
  36. ncbi request reprint Longitudinal changes in the kinetic response to heavy-intensity exercise in children
    Samantha G Fawkner
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, UK
    J Appl Physiol 97:460-6. 2004
    ..The data demonstrate that children do display a slow-component response to exercise and are consistent with an age-dependent change in the muscles' potential for O(2) utilization...
  37. pmc Reliability of heart rate variability measures at rest and during light exercise in children
    R J Winsley
    Children s Health and Exercise Research Centre, University of Exeter, Heavitree Road, Exeter EX1 2LU, Devon, UK
    Br J Sports Med 37:550-2. 2003
    ..To investigate the reliability of heart rate variability (HRV) measures at rest and during light exercise in children...
  38. doi request reprint Age- and sex-related differences in muscle phosphocreatine and oxygenation kinetics during high-intensity exercise in adolescents and adults
    Rebecca J Willcocks
    Children s Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, Exeter, UK
    NMR Biomed 23:569-77. 2010
    ..01). The results of this study show that the control of oxidative metabolism at the onset of high intensity exercise is adult-like in 13-year-old children, but that matching of oxygen delivery to extraction is more precise in adults...
  39. ncbi request reprint Oxygen uptake kinetics in children and adolescents: a review
    Neil Armstrong
    Childrens Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, Exeter, UK
    Pediatr Exerc Sci 21:130-47. 2009
    ..Overall, the data support the view that at the onset of exercise children have an enhanced potential for oxidative metabolism in the myocyte compared with adults...
  40. ncbi request reprint Modelling the VO2 kinetic response to heavy intensity exercise in children
    Samantha G Fawkner
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Ergonomics 47:1517-27. 2004
    ..It was concluded that the nature of the response to heavy intensity exercise in children is similar to that previously reported with adults and that the response should be modelled accordingly...
  41. doi request reprint Muscle phosphocreatine and pulmonary oxygen uptake kinetics in children at the onset and offset of moderate intensity exercise
    Alan R Barker
    Children s Health and Exercise Research Centre, University of Exeter, St Luke s Campus, Exeter EX1 2LU, UK
    Eur J Appl Physiol 102:727-38. 2008
    ....
  42. ncbi request reprint Reliability of peak VO(2) and maximal cardiac output assessed using thoracic bioimpedance in children
    Joanne Welsman
    Children s Health and Exercise Research Centre, University of Exeter, Heavitree Road, Exeter, EX1 2LU, UK
    Eur J Appl Physiol 94:228-34. 2005
    ....
  43. ncbi request reprint Achievement of peak VO2 during a 90-s maximal intensity cycle sprint in adolescents
    Craig A Williams
    Children s Health and Exercise Research Centre, University of Exeter, St Luke s Campus, Heavitree Road, Exeter, EX1 2LU, UK
    Can J Appl Physiol 30:157-71. 2005
    ..05. Hence, for researchers solely interested in PVO2 values, a shorter but more intensive protocol provides an alternative method to the traditional ramp aerobic test...
  44. ncbi request reprint Effects of age and mode of exercise on power output profiles during repeated sprints
    Sebastien Ratel
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, Devon, UK
    Eur J Appl Physiol 92:204-10. 2004
    ..Furthermore, children and adults experienced greater fatigue during running compared to cycling. This last result may be attributed to additional muscle recruitment during sprint running...
  45. ncbi request reprint Sex differences in the oxygen uptake kinetic response to heavy-intensity exercise in prepubertal children
    Samantha G Fawkner
    Children s Health and Exercise Research Centre, University of Exeter, Exeter, UK
    Eur J Appl Physiol 93:210-6. 2004
    ..9 (3.7)%]. Sex differences in the kinetic response to heavy-intensity exercise were identified and suggest that during the prepubertal years, sex differences exist in the ability to deliver and/or utilise oxygen in children...
  46. ncbi request reprint Short-term appetite and energy intake following imposed exercise in 9- to 10-year-old girls
    Melanie S Moore
    Children s Health and Exercise Research Centre, St Luke s Campus, University of Exeter, Heavitree Road, Exeter, EX1 2LU, UK
    Appetite 43:127-34. 2004
    ..The imposition of energy expenditure through exercise of either low or high intensity resulted in no detectable increase in energy intake in the short term...
  47. ncbi request reprint Reliability of 31P-magnetic resonance spectroscopy during an exhaustive incremental exercise test in children
    Alan Barker
    Children s Health, Exercise Research Centre, St Luke s Campus, University of Exeter, Exeter, UK
    Eur J Appl Physiol 98:556-65. 2006
    ..However, the objectively determined IT(Pi/PCr) and END(Pi/PCr) displayed poor reliability...
  48. ncbi request reprint The reproducibility of an endurance performance test in adolescent cyclists
    VerĂ³nica Montfort-Steiger
    Children s Health and Exercise Research Centre, University of Exeter, St Luke s Campus Heavitree Road, Exeter, EX1 2LU, UK
    Eur J Appl Physiol 94:618-25. 2005
    ..It is concluded that the present performance test is reliable in adolescent cyclists with lower variation between trials 2 and 3...
  49. ncbi request reprint Elbow flexion and extension strength relative to body or muscle size in children
    Louise E Wood
    Department of Sport and Exercise Science, University of Portsmouth, Portsmouth, UK
    Med Sci Sports Exerc 36:1977-84. 2004
    ....
  50. ncbi request reprint Aerobic fitness of children and adolescents
    Neil Armstrong
    J Pediatr (Rio J) 82:406-8. 2006
  51. doi request reprint IOC consensus statement on training the elite child athlete
    Margo Mountjoy
    IOC Medical Commission, Lausanne, Switzerland
    Clin J Sport Med 18:122-3. 2008