Recreational soccer is an effective health-promoting activity for untrained men
P Krustrup, J J Nielsen, B R Krustrup, J F Christensen, H Pedersen, M B Randers, P Aagaard, A-M Petersen, L Nybo, J Bangsbo
British Journal of Sports Medicine Oct 2009, 43 (11) 825-831; DOI: 10.1136/bjsm.2008.053124