eLetters

68 e-Letters

published between 2003 and 2006

  • A note on the usage of cost-effectiveness acceptability curves
    Mohsen Sadatsafavi

    Dear Editor,

    In a recent article in this journal by Struijs and colleagues [1], the cost-effectiveness of physiotherapy, braces, and a combination of the two for treatment of tennis elbow has been studied. Unfortunately, the cost-effectiveness acceptability curve (Figure 3 of the article) could not be correct. As the cost-effectiveness plane and the authors' comments in the results section indicate, bootstrap cost...

    Show More
  • Laboratory testing in athletes
    Giuseppe Lippi

    Dear Editor,

    Athletes undergoing a strenuous training schedule can develop a significant decrease in performance associated with systemic symptoms or signs: the fatigue and overtraining syndromes. A more critical issue in sport medicine is as yet to establish whether laboratory abnormalities may be useful or not in guiding evaluation and treatment of the fatigue syndrome and related disorders.

    In the rece...

    Show More
  • Over-extrapolation of research
    W Larry Kenney

    Dear Editor,

    We appreciated the recent letter by Dugas in this journal (BJSM 2006;40:372) because it provides an excellent teaching tool for students on the dangers of over-extrapolating published data. Most scientifically puzzling is the figure published with Dugas’ letter. In that figure, Dugas replots data from an elderly woman exercising intermittently for 150 minutes, then extends a linear regression line b...

    Show More
  • ACSM Fluid Recommendations: Replace Sweat, not "Drink as much as you can"
    William O Roberts

    Dear Editor,

    The case study described by Dugas and Noakes (2005:39;e38) demonstrates the wide individual variability in sweat losses that occur in athletes, and there is not much doubt this woman was ill advised for her fluid replacement plan. The conclusions of the both the case report and the commentary that follows place the blame for her problem on the 1996 American College of Sports Medicine (ACSM) Fluid...

    Show More
  • Authors' reply: Exercise challenge testing of elite winter athletes for exercise-induced asthma
    John W Dickinson

    Dear Editor,

    In response to the e-letter from Lindley and Mickleborough, we are delighted to receive their comments to our article ‘screening elite winter athletes for exercise induced asthma: a comparison of three challenge methods’. We agree with Lindley and Mickleborough that laboratory exercise challenges during which the athlete to inspires dry air are more likely to induce bronchospasm compared with the ambi...

    Show More
  • Osmotically inactive sodium may also play a quantitative role in exercise-associated hyponatraemia
    Louise B Weschler

    Dear Editor,

    Montain et al.(1) use a simplified version of the Nguyen-Kurtz equation to predict a new plasma sodium concentration. This equation accounts for the three principle determinants of change in plasma sodium concentration, namely the mass balances of water, sodium and potassium. However, the y-intercept in the original Edelman equation, appearing here as 23.9 mEq/liter, is assumed in the simplified Ng...

    Show More
  • Quantifying the functional rehabilitation of injured football players
    Michael J. Stone

    Dear Editor,

    We feel the points raised in the article by Fuller et al (1) are interesting but need to be addressed from both a practical as well as an academic perspective.

    From a theoretical viewpoint the concept of reaching certain performance levels in a battery of tests before a player returns to training following injury is an attractive proposition. We feel however that there are many practical...

    Show More
  • Re: Mixed martial arts not all bad
    George J. Buse

    Dear Editor,

    Having trained for, competed in, and served as ringside physician for numerous full-contact martial arts competitions, I took great interest in reading Dr. G.H. Bledsoe’s letter “Mixed martial arts not all bad.”[1] I appreciated his feedback regarding my article[2] and applaud his drive to research combat sports with utmost objectivity. Acknowledging the dangers of participation both from the perspe...

    Show More
  • Exercise challenge testing of elite winter athletes for exercise-induced asthma
    Martin R Lindley

    Dear Editor,

    We read with great interest the article published in BJSM by Dickinson et al (February 2006) (1) on challenge methods for screening elite winter athletes for exercise induced asthma (EIA). We are in agreement with the commentary by Professor Rundell that this is a solid and clear paper reaffirming the efficacy of eucapnic voluntary hyperventilation (EVH) in diagnosing EIA. However, we believe that...

    Show More
  • Answer to letter by Prof. G Lippi
    Paola Brancaccio

    Dear Editor,

    We are pleased that our Leader has engendered interest, thank Prof Lippi and his colleagues for their letter, and are grateful to the Journal for the opportunity to reply. We fully agree with their ideas: using normative data from non-athletic population may well result in over- investigation and unnecessary worries for athletes. This is why we believe that serum concentrations of the enzymes in quest...

    Show More

Pages