Bruton Michaela R, Adams Roger D, O'Dwyer Nicholas J
1 School of Exercise and Sport Science, Australian Catholic University, Strathfield, NSW, Australia.
2 University of Sydney, Lidcombe, NSW, Australia.
Percept Mot Skills. 2017 Oct;124(5):992-1008. doi: 10.1177/0031512517717853. Epub 2017 Jul 4.
We suspected that the observed inconsistency of sex differences in drop-landing motor skills might be due to the confounding factor of prior experience. Thus, in this study, we explored the role of experience in shaping male and female surfboard riders' motor skill kinematics during drop landings while surfboard riding. We recruited 42 participants (21 females and 21 males) from three groups of surfing experience levels (competitive surfers, recreational surfers, and nonsurfers), each equally comprising seven males and seven females. Sagittal plane kinematics and vertical ground reaction force data were collected from all participants during a laboratory-based 60-cm drop-landing task. Knee flexion and ankle dorsiflexion at initial ground contact were greater among male participants, independent of experience level. In both sexes, greater range of motion at these joints was related to greater experience. Recreational female surfers landed in a more upright posture with more extended ankle and knee angles and less ankle dorsiflexion at the end of landing than participants in all other groups. We discuss our results in the context of possible remaining experience differences between male and female participants despite being grouped in the same experience levels in our study, individualized motor patterns that may still achieve similar success, and a need for continued research.
我们怀疑在落地动作技能中观察到的性别差异不一致可能是由于先前经验这个混杂因素所致。因此，在本研究中，我们探讨了经验在塑造男女冲浪者在冲浪时落地过程中的运动技能运动学方面所起的作用。我们从三组冲浪经验水平（竞技冲浪者、休闲冲浪者和非冲浪者）中招募了42名参与者（21名女性和21名男性），每组均由7名男性和7名女性组成。在基于实验室的60厘米落地任务中，收集了所有参与者的矢状面运动学和垂直地面反作用力数据。男性参与者在初始触地时的膝关节屈曲和踝关节背屈更大，与经验水平无关。在两性中，这些关节更大的活动范围与更多的经验有关。与所有其他组的参与者相比，休闲女性冲浪者在落地时姿势更直立，踝关节和膝关节角度更伸展，落地结束时踝关节背屈更小。我们在研究中讨论了我们的结果，尽管男女参与者被分为相同的经验水平，但可能仍存在经验差异，个体运动模式可能仍能取得类似的成功，以及持续研究的必要性。
