Reinold, M. M., Macrina, L. C., Fleisig, G. S., Aune, K., Andrews, J. R. Veröffentlicht in Sports Health: A Multidisciplinary Approach (2018) “...training means...”
Szymanski, D. J., McIntyre, J. S., Szymanski, J. M., Bradford, T. J., Schade, R. L., Madsen, N. H., Pascoe, D. D. Veröffentlicht in The Journal of Strength and Conditioning Research (2007) “...training means...”