Just after breakdown of term and you can abstract, i omitted 961 of them facts (identical records, n = 31; addition criteria perhaps not came across, letter = 930; mostly due to education maybe not examining elite professional athletes and you will/or mortality/toughness style), and therefore remaining 40 eligible full-text articles on the internet off Research database browse. Seventeen even more articles was basically recovered off site listing included in these records and you can a broad online research. Overall, 57 degree occupied this new standards to have inclusion (Dining tables 1 and you may ?