Department of Health Professions, Physical Therapy Program, Health Science Center, University of Wisconsin-La Crosse, La Crosse, WI 54601, USA.
Sports Biomech. 2010 Sep;9(3):165-77. doi: 10.1080/14763141.2010.502241.
Many sports associated with anterior cruciate ligament (ACL) injury require athletes attend to a ball during participation. We investigated effects of attending to a ball on lower extremity mechanics during a side-cut maneuver and if these effects are consistent for males and females. Sagittal and frontal plane hip and knee kinematics and joint moments were measured during side-cut maneuvers in 19 male and 19 female National Collegiate Athletic Association division III basketball players. Participants also experienced two side-cut conditions that required attention to a ball. Our results did not indicate that the effect of attention varies with gender. However, during side-cut conditions while attending to a ball, internal knee adductor moment was 20% greater (p = 0.03) and peak knee flexion angle was 4 degrees larger (p < 0.01). Females demonstrated 5 degrees less hip flexion (p = 0.046), 12 degrees less knee flexion (p < 0.01), and 4 degrees more knee abduction (p = 0.026) at initial contact during all side-cut conditions than males. Attention to a ball may affect lower extremity mechanics relevant to ACL injury. The validity of laboratory studies of lower extremity mechanics for sports that include attention to a ball may be increased if participants are required to attend to a ball during the task.
许多与前交叉韧带（ACL）损伤相关的运动都需要运动员在参与时注意球。我们研究了在侧滑动作中注意球对下肢力学的影响，以及这些影响是否在男性和女性中一致。在 19 名男性和 19 名女性美国大学生体育协会三级篮球运动员的侧滑动作中，测量了矢状面和额状面髋关节和膝关节运动学以及关节力矩。参与者还经历了两种需要注意球的侧滑条件。我们的结果表明，注意力的效果不受性别影响。然而，在注意球的侧滑条件下，内收肌的膝关节内力矩增加了 20%（p = 0.03），膝关节最大屈曲角度增加了 4 度（p < 0.01）。女性在所有侧滑条件下的初始接触时，髋关节屈曲度减少 5 度（p = 0.046），膝关节屈曲度减少 12 度（p < 0.01），膝关节外展度增加 4 度（p = 0.026）。在包括注意球的运动中，对下肢力学的实验室研究的有效性可能会提高，如果要求参与者在任务中注意球。
