306 e-Letters

  • typing error

    Table 3: First supplement "Beta Alanine". This should read "Caffeine" as described in the text.

  • Maybe an error occured in IMG 2 caption.

    First, I'd like to thank you for your precious work, as I'm doing a research about kitesurfing injuries statistics.

    As kitesurfing instructor, I'd like to tell that in picture n°2, I think the guy is intentionally doing a trick. The kite is flying high, pulling him up. As far as the kite pulls the rider above the center of gravity, put the upper body below that point (as in the picture) requires strength, control and intentionality.
    In really dangerous situation (those that need the rider to use quick release safety system), you usually can see the kite low in the air in front of the rider (power zone) pulling hard and the rider's legs behind.
    I don't want to say that the situation described in the picture couldn't be dangerous at all, but in this case it depends on factors you can't see in the picture (obstacles, beach, other people, maximum height of the jump...).

    Again, thanks for your research work and thanks to people working on safety on the beaches and in kitesurfing.


  • An alternative term to Plantar Heel Pain

    Whilst plantar heel pain be a more appropriate term than plantar fasciitis the later is more diagnostic than plantar heel pain which is more symptomatic. It is suggested that the attachments to the os calcis ought to be termed plantar enthesopathy for instance plantar enthesitis

  • Enjoyable form of exercise

    Dear Editor,

    I thank Dr. Batacan et al. for their excellent meta-analysis “Effects of high-intensity interval training on cardiometabolic health” in the March 2017 issue of the British Journal of Sports Medicine [1]. Even if the effects of high-intensity interval training (HIIT) on inflammation are still unclear, research in the coming years will hopefully prove more positive benefits. For example, two recent studies showed effects through a long-term HIIT (12 weeks or more) in the inflammatory profile of overweight/obese adults, such as decreased interleukin (IL) 6, and increased IL-10 concentrations [2, 3].

    But regardless of the various health effects of HIIT, I think the following fact is also worth mentioning for consumers. Health is a motivation to start with regular exercise, but mostly no motive to stay in the long term. On a permanent and regular basis, sport is only practiced when factors such as pleasure and enjoyment are added to the movement. Therefore, I am especially pleased that even overweight/obese teenagers and adults feel HIIT for an enjoyable and time-efficient form of exercise, as several recent studies demonstrate [4-8].

    To Dr. Batacan and colleagues: Very well written, correct results, and appropriate references. Congratulations!


    1. Batacan RB Jr, Duncan MJ, Dalbo VJ, Tucker PS, Fenning AS. Effects of high-intensity interval training on cardiometabolic health: a systematic review and meta-analysis of inte...

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  • Dr James Thompson

    How soon after completion of the exercise regime were the cognitive measures taken, and what was the average length of the followup?

  • A simple approach to a healthy lifestyle

    Dear Editor,

    Saturated fat is an essential element in our diet. Our body uses saturated far for energy, hormone production, facilitating vitamin absorption and most importantly, for coating and padding to protect our cellular membranes and organs. In the last two decades, saturated fat has been demonised as the main culprit leading to fatty deposits in the coronary artery and causing heart attacks (myocardio-infarction) when the deposits block up the artery. The truth is that myocardio-infarction is not directly caused by deposition of saturated fat called ‘plaque’ in our coronary arteries. The main cause of myocardio-infarction is the rupture of the plaque [1]. The main cause of rupture is inflammation [2-4]. There are many factors which will trigger an inflammation response in our body. These include: infection, stress, allergy, and injury…etc. Other genetic factors and social and environment factors also play an important role. I salute the authors of this paper for their strong spirit of science, identifying new evidence which challenges previous views. “The important thing is not to stop questioning. Curiosity has its own reason for existing”. - Albert Einstein As an epidemiologist, public health practitioner and an educator, I concur with the author’s suggestion of the non-pharmaceutical approach to maintain good health. This simple approach involves an easy short daily walking exercise and eating a good balanced diet with...

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  • The type of fat matters
    Vidur Kapur

    Dear Editor,

    I read with interest the narrative review by Timothy David Noakes and Johann Windt

    However, the very name of this diet, 'low-carb, high-fat' can be misleading, because it does not tell us which type(s) of fat such a diet is high in. To the extent that low-carb, high-fat (LCHF) diets are low in carbohydrates and high in monounsaturated and polyunsaturated fats (MUFAs and PUFAs, respectively), p...

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  • Associations and causality
    M John Cooper

    Dear Editor,

    The article identifies "associations" between various sports and longevity. Associations do not deal with the issue of causality. Yet articles like this seem to imply that there is a causal relationship. I'm sure the authors would acknowledge that "correlation does not imply causation". Yet articles like this seem to imply that "yes, we know we haven't proved causality, but (nudge nudge, wink wink) we...

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  • Greg Mirt
    Greg Mirt

    Dear Editor,

    As for Fifa standards this is very lovely explained as well. The benefit of activity is in common interest of health professionals and the state.

    Conflict of Interest:


  • Response to: "Does sports participation (including level of performance and previous injury) increase risk of osteoarthritis? A systematic review and meta-analysis"
    Kate A. Timmins

    Dear Editor,

    We read with interest the systematic review by Tran and colleagues recently published online(1). The findings build on our own observations in a systematic review of running and knee osteoarthritis (OA)(2). Although the focus of our review was narrower than that of Tran et al, which investigated evidence relating to OA of all joints across a variety of sports, we would like to comment on some of the si...

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