MacLeod, H., Sunderland, C. Julkaisussa Scandinavian Journal of Medicine & Science in Sports (2012)
Wood, M. R., Dowson, M. N., Hopkins, W. G. Julkaisussa European Journal of Sport Science (2006)
Lemmink, K. A. P. M., Visscher, S. H. Julkaisussa The Journal of Strength and Conditioning Research (2006)
Aziz, A. R., Chia, M., Teh, K. C. Julkaisussa The Journal of Sports Medicine and Physical Fitness (2000)