J R Poortmans

Summary

Country: Belgium

Publications

  1. ncbi request reprint Estimation of total-body skeletal muscle mass in children and adolescents
    Jacques R Poortmans
    Physiological Chemistry Department, Higher Institute of Physical Education and Physiotherapy, CP 168, Free University of Brussels, 28 Avenue Paul Heger, B 1000 Brussels, Belgium
    Med Sci Sports Exerc 37:316-22. 2005
  2. ncbi request reprint Renal responses to exercise in heart and kidney transplant patients
    J R Poortmans
    Chimie Physiologique, I S E P K C P 168, Universite Libre de Bruxelles, Belgium
    Transpl Int 10:323-7. 1997
  3. ncbi request reprint Effect of oral creatine supplementation on urinary methylamine, formaldehyde, and formate
    Jacques R Poortmans
    Higher Institute of Physical Education and Physical Therapy, Free University of Brussels, Brussels, Belgium
    Med Sci Sports Exerc 37:1717-20. 2005
  4. ncbi request reprint Glomerular filtration rate and albumin excretion after maximal exercise in aging sedentary and active men
    Jacques R Poortmans
    Institut Supérieur d Education Physique et de Kinésithérapie, CP 168, Universite Libre de Bruxelles, 28 Avenue Paul Heger, B 1000 Bruxelles, Belgium
    J Gerontol A Biol Sci Med Sci 61:1181-5. 2006
  5. ncbi request reprint Postexercise proteinuria in humans and its adrenergic component
    J R Poortmans
    Chimie Physiologique, Institut Supérieur d Education Physique et de Kinésithérapie, Universite Libre de Bruxelles, Bruxelles, Belgium
    J Sports Med Phys Fitness 41:95-100. 2001
  6. ncbi request reprint Adverse effects of creatine supplementation: fact or fiction?
    J R Poortmans
    Physiological Chemistry, Higher Institute of Physical Education and Readaptation, Free University of Brussels, Bruxelles, Belgium
    Sports Med 30:155-70. 2000
  7. ncbi request reprint Long-term oral creatine supplementation does not impair renal function in healthy athletes
    J R Poortmans
    Chimie Physiologique, Institut Supérieur d Education Physique et de Kinésithérapie, Universite Libre de Bruxelles, Brussels, Belgium
    Med Sci Sports Exerc 31:1108-10. 1999
  8. ncbi request reprint Effects of training and creatine supplement on muscle strength and body mass
    M Francaux
    Institut Supérieur d Education Physique et de Kinésithérapie, Universite Libre de Bruxelles, Brussels, Belgium
    Eur J Appl Physiol Occup Physiol 80:165-8. 1999
  9. ncbi request reprint Beneficial effects of creatine supplementation in dystrophic patients
    Magali Louis
    Institut d éducation physique et de réadaptation, Universite Catholique de Louvain, 1 Place Pierre de Coubertin, B 1348 Louvain la Neuve, Belgium
    Muscle Nerve 27:604-10. 2003
  10. ncbi request reprint No effect of creatine supplementation on human myofibrillar and sarcoplasmic protein synthesis after resistance exercise
    Magali Louis
    Universite Catholique de Louvain, France
    Am J Physiol Endocrinol Metab 285:E1089-94. 2003

Collaborators

  • M Francaux
  • Rodrigo Moreno-Reyes
  • Michael J Rennie
  • Magali Louis
  • Tom Waddell
  • John A Babraj
  • Kenneth Smith
  • Nathalie Boisseau
  • Jacques Berre
  • Claire Cuisinier
  • Vernon R Young
  • Eric Hultman
  • Paul van Hecke
  • Eric Brassine
  • Francis Goubel
  • Marie Claude Belpaire-Dethiou
  • Daniel J R Cuthbertson
  • Jean Lebacq
  • Jean Pierre Devogelaer
  • Wolfram Meier-Augenstein
  • Jacques Michotte De Welle
  • Roberta Ward
  • Xavier Sturbois
  • Roger K Verbeeck

Detail Information

Publications12

  1. ncbi request reprint Estimation of total-body skeletal muscle mass in children and adolescents
    Jacques R Poortmans
    Physiological Chemistry Department, Higher Institute of Physical Education and Physiotherapy, CP 168, Free University of Brussels, 28 Avenue Paul Heger, B 1000 Brussels, Belgium
    Med Sci Sports Exerc 37:316-22. 2005
    ..SMM measurement is compulsory to evaluate exercise performance and the influence of physical training on muscle mass. However, there is a lack of information on children and adolescents when quantifying appendicular skeletal muscle mass...
  2. ncbi request reprint Renal responses to exercise in heart and kidney transplant patients
    J R Poortmans
    Chimie Physiologique, I S E P K C P 168, Universite Libre de Bruxelles, Belgium
    Transpl Int 10:323-7. 1997
    ..We conclude that short-term, maximum exercise in heart and kidney transplant recipients is not detrimental to kidney function...
  3. ncbi request reprint Effect of oral creatine supplementation on urinary methylamine, formaldehyde, and formate
    Jacques R Poortmans
    Higher Institute of Physical Education and Physical Therapy, Free University of Brussels, Brussels, Belgium
    Med Sci Sports Exerc 37:1717-20. 2005
    ..Despite this allegation, there has been no scientific evidence obtained in humans to sustain or disprove such a detrimental effect of this widely used ergogenic substance...
  4. ncbi request reprint Glomerular filtration rate and albumin excretion after maximal exercise in aging sedentary and active men
    Jacques R Poortmans
    Institut Supérieur d Education Physique et de Kinésithérapie, CP 168, Universite Libre de Bruxelles, 28 Avenue Paul Heger, B 1000 Bruxelles, Belgium
    J Gerontol A Biol Sci Med Sci 61:1181-5. 2006
    ..The purpose of the present study was to investigate the effect of maximal exercise on glomerular filtration rate (GFR) and albumin excretion in an aging population...
  5. ncbi request reprint Postexercise proteinuria in humans and its adrenergic component
    J R Poortmans
    Chimie Physiologique, Institut Supérieur d Education Physique et de Kinésithérapie, Universite Libre de Bruxelles, Bruxelles, Belgium
    J Sports Med Phys Fitness 41:95-100. 2001
    ..To test this hypothesis we administrated an a2-adrenergic agonist (clonidine) in order to reduce the catecholamine response during exercise...
  6. ncbi request reprint Adverse effects of creatine supplementation: fact or fiction?
    J R Poortmans
    Physiological Chemistry, Higher Institute of Physical Education and Readaptation, Free University of Brussels, Bruxelles, Belgium
    Sports Med 30:155-70. 2000
    ..Regular monitoring is compulsory to avoid any abnormal reactions during oral creatine supplementation...
  7. ncbi request reprint Long-term oral creatine supplementation does not impair renal function in healthy athletes
    J R Poortmans
    Chimie Physiologique, Institut Supérieur d Education Physique et de Kinésithérapie, Universite Libre de Bruxelles, Brussels, Belgium
    Med Sci Sports Exerc 31:1108-10. 1999
    ..It is important to know whether long-term oral creatine supplementation has any detrimental effects on kidney function in healthy population...
  8. ncbi request reprint Effects of training and creatine supplement on muscle strength and body mass
    M Francaux
    Institut Supérieur d Education Physique et de Kinésithérapie, Universite Libre de Bruxelles, Brussels, Belgium
    Eur J Appl Physiol Occup Physiol 80:165-8. 1999
    ..Nevertheless, the relative volumes of the body water compartments remained constant and therefore the gain in body mass cannot be attributed to water retention, but probably to dry matter growth accompanied with a normal water volume...
  9. ncbi request reprint Beneficial effects of creatine supplementation in dystrophic patients
    Magali Louis
    Institut d éducation physique et de réadaptation, Universite Catholique de Louvain, 1 Place Pierre de Coubertin, B 1348 Louvain la Neuve, Belgium
    Muscle Nerve 27:604-10. 2003
    ..05), and urinary excretion of collagen type I cross-linking N-telopeptide declined to about one third (P < 0.001) after Cr. No adverse effect was observed. Thus, Cr may provide some symptomatic benefit in these patients...
  10. ncbi request reprint No effect of creatine supplementation on human myofibrillar and sarcoplasmic protein synthesis after resistance exercise
    Magali Louis
    Universite Catholique de Louvain, France
    Am J Physiol Endocrinol Metab 285:E1089-94. 2003
    ..01). Exercise increased the synthetic rates of myofibrillar and sarcoplasmic proteins by two- to threefold (P < 0.05), and leg phenylalanine balance became more positive, but creatine was without any anabolic effect...
  11. ncbi request reprint Role of taurine in osmoregulation during endurance exercise
    Claire Cuisinier
    Institut d éducation physique et de réadaptation, Faculte de Medecine, Universite Catholique de Louvain, 1 Place Pierre de Coubertin, 1348 Louvain la Neuve, Belgium
    Eur J Appl Physiol 87:489-95. 2002
    ..In conclusion, changes in the plasma taurine content during endurance exercise is related to an osmoregulatory process, but this alone does not control plasma volume changes...
  12. ncbi request reprint Creatine supplementation has no effect on human muscle protein turnover at rest in the postabsorptive or fed states
    Magali Louis
    Universite Catholique de Louvain, Universite Libre de Bruxelles, Brussels 1200, Belgium
    Am J Physiol Endocrinol Metab 284:E764-70. 2003
    ..026), but creatine had no effect on turnover in the postabsorptive or fed states. Thus any increase in muscle mass accompanying creatine supplementation must be associated with increased physical activity...