Abstract
Determinants of physical work performance have been found to be age, sex, body size, total body hemoglobin, heart size, degree of physical training and presence or absence of disease. 1 Astrand PO Human physical fitness with special reference to sex and age.. Physiol Rev. 1956; 36: 307-335 Crossref PubMed Scopus (210) Google Scholar , 2 Döbeln W v Maximal oxygen intake, body size, and total hemoglobin in normal man.. Acta Physiol Scand. 1956; 38: 193-199 Crossref PubMed Scopus (44) Google Scholar , 3 Ekholm B Effect of physical training on oxygen transport system in men.. Acta Physiol Scand Suppl. 1969; 328 Google Scholar , 4 Holmgren A Strandell T The relationship between heart volume, total hemoglobin and physical working capacity in former athletes.. Acta Med Scand. 1959; 163: 149-160 Crossref PubMed Scopus (24) Google Scholar , 5 Grimby G Wilhelmsen L Ekström-Jodal B et al. Aerobic power and related factors in population study of men aged 54.. Scand J Clin Lab Invest. 1970; 26: 287-294 Crossref PubMed Scopus (14) Google Scholar
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