TY - JOUR PY - 2013// TI - The effects of three jump landing tasks on kinetic and kinematic measures: Implications for acl injury research JO - Research in sports medicine A1 - Cruz, Anna A1 - Bell, David A1 - McGrath, Melanie A1 - Blackburn, Troy A1 - Padua, Darin A1 - Herman, Daniel SP - 330 EP - 342 VL - 21 IS - 4 N2 - This study compared the biomechanics of jump landing tasks used in ACL research. Twenty-seven female subjects performed a drop landing (DL), a drop landing with a vertical jump (DVJ), and a forward jump landing with a vertical jump (FVJ). We hypothesized that as one progressed from the drop landing through the forward-vertical jump that the kinematic and kinetic demands would increase, with progressively increasing knee and hip forces, moments, and angles on landing. Separate repeated-measures ANOVAs were performed. The FVJ had the highest peak anterior tibial shear force (p < 0.001), hip flexion angle (p < 0.001), knee flexion moment (p < 0.001), and knee valgus moment (p < 0.001). The DL had the smallest knee flexion angle (pā=ā0.001) and hip flexion angle (p < 0.001), while the DVJ had the lowest knee valgus moment (p < 0.001). These results indicate that seemingly minor variations between jump landing tasks may influence landing biomechanics. Caution should be used when comparing studies using different tasks.
Language: en
LA - en SN - 1543-8627 UR - http://dx.doi.org/10.1080/15438627.2013.825798 ID - ref1 ER -