Run training vs cross training: Influence of increased training on running economy, foot impact shock, and run performance - Pizza, G. X.; Flynn, M. G.; Starling, R. D.; Brolinson, P. G.; Sigg, J.; Kubitz, E. R.; Davenport, R. L. (International Journal of Sports Medicine, 1995)
Keywords: semi-specific training; training means; training; training method; running; USA; endurance sports