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Increased premorbid physical activity and amyotrophic lateral sclerosis: born to run rather than run to death, or a seductive myth?
  1. Martin R Turner
  1. Correspondence to Dr Martin R Turner, Oxford University, Nuffield Department of Clinical Neurosciences, West Wing Level 3, John Radcliffe Hospital, Oxford OX3 9DU, UK; martin.turner{at}

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Osler noted, ‘It is much more important to know what sort of a patient has a disease than what sort of a disease a patient has’. In amyotrophic lateral sclerosis (ALS), a previously functional motor system undergoes a catastrophic, typically rapid degeneration, with a median survival from symptom onset of 3 years.1 Understanding who is at high risk for what appears as a sporadic disorder for most is axiomatic to any long-term vision of primary prevention. Huisman et al2 now present a questionnaire-led, population-based, case–control study of 636 patients and 2166 controls in relation to premorbid physical activity.

ALS abruptly ended the career of American …

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  • Contributors MRT wrote the commentary alone.

  • Competing interests None.

  • Provenance and peer review Commissioned; internally peer reviewed.

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