TY - JOUR AU - Gottschall, J S; Kram, R TI - Ground reaction forces during downhill and uphill running JO - J Biomech VL - 38 PY - 2005 DO - 10.1016/j.jbiomech.2004.04.023 L3 - PubMed-ID: 15652542 SP - 445 EP - 452 ER -