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Letter in response to
Sleep is an important factor when considering rugby union player load
  1. Ian C Dunican,
  2. Peter R Eastwood
  1. Centre for Sleep Science, School of Anatomy, Physiology and Human Biology, The University of Western Australia, Crawley, Western Australia, Australia
  1. Correspondence to Ian C Dunican; ian.dunican{at}

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We read with great interest the paper by Dr Kenneth Quarrie, et al1. The review provides an excellent summary of elite player physical demands, and the nature and measurement of the physical and non-physical loads that underpin these demands. However, we believe that the lack of acknowledgement of sleep as an important contributor to non-physical loads is an oversight. This is because sleep has been shown in many studies to be important for optimal athletic performance (physical and cognitive components) and is recognised as an essential component of recovery.2 Indeed, it is considered by some to be one of a number …

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  • Competing interests None declared.

  • Provenance and peer review Not commissioned; internally peer reviewed.