Alpine skiing with total knee ArthroPlasty (ASWAP) : effects on strength and cardiorespiratory fitness - Pötzelsberger, B.; Stöggl, T.; Lindinger, S.J.; Dirnberger, J.; Stadlmann, M.; Buchecker, M.; Hofstaedter, T.; Gordon, K.; Müller, E. (Scandinavian Journal of Medicine & Science in Sports, 2015)