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Cohort study
Muscle strength during adolescence is associated with longevity
  1. Antony D Karelis
  1. Department of Kinanthropology, Université du Québec à Montréal, Montreal, Quebec, Canada
  1. Correspondence to: Dr Antony D Karelis
    Department of Kinanthropoloy, Université du Québec à Montréal, 141 ave, President-Kennedy, Montreal, Canada H2X 1Y4; Karelis.antony{at}

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Commentary on: Ortega FB, Silventoinen K, Tynelius P, et al. Muscular strength in male adolescents and premature death: cohort study of one million participants. BMJ 2012;345:e7279


The importance of muscle strength as a risk factor for mortality has recently been given greater attention by researchers. Accordingly, there is evidence to suggest that low levels of muscle strength may be associated with an increased risk of mortality in middle-aged and elderly individuals.1 However, no prospective large-scale study appears to be available regarding the relationship between muscle strength and the risk of early mortality in adolescents, since leading causes of death in the elderly (cardiovascular disease) and young adults (suicide) are different. Therefore, in this study, Ortega and colleagues examined the association between different levels of muscle strength and the risk of premature death owing to cardiovascular disease, cancer and suicide in male adolescents.


Over one million Swedish male adolescents aged between 16 …

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