Korea Institute of Sport Science, Seoul 01794, Korea.
Department of Special Physical Education, YongIn University, Yongin-si 17092, Korea.
Int J Environ Res Public Health. 2021 Mar 14;18(6):2962. doi: 10.3390/ijerph18062962.
The purpose of this study is to compare and analyze the kinematic characteristics of the upper limb segments during the archery shooting of Paralympic Wheelchair Class archers (ARW2-second wheelchair class-paraplegia or comparable disability) and Paralympic Standing Class archers (ARST-standing archery class-loss of 25 points in the upper limbs or lower limbs), where archers are classified according to their disability grade among elite disabled archers. The participants of this study were selected as seven elite athletes with disabilities by the ARW2 ( = 4) and ARST ( = 3). The analysis variables were (1) the time required for each phase, (2) the angle of inclination of the body center, (3) the change of trajectory of body center, and (4) the change of the movement trajectory of the bow center by phase when performing six shots in total. The ARW2 group (drawing phase; M = 2.228 s, < 0.05, holding phase; M = 4.414 s, < 0.05) showed a longer time than the ARST group (drawing phase; M = 0.985 s, holding phase; M = 3.042 s), and the angle of the body did not show a significant difference between the two groups. Additionally, in the direction of the anteroposterior axis in the drawing phase, the change in the movement trajectory of the body center showed a more significant amount of change in the ARW2 group than in the ARST group, and the change in the movement trajectory of the bow center did not show a significant difference between the two groups.
本研究旨在比较和分析残奥会轮椅级(ARW2-第二轮椅级-截瘫或类似残疾)和残奥会站立级(ARST-站立射箭级-上肢或下肢丧失 25 分)射箭运动员上肢节段的运动学特征,其中根据残疾等级对优秀残疾射箭运动员进行分类。本研究的参与者由 7 名残疾精英运动员组成,其中 ARW2 组(n=4)和 ARST 组(n=3)。分析变量包括:(1)各阶段所需时间,(2)身体重心倾斜角度,(3)身体重心轨迹变化,(4)共进行 6 发时,弓心运动轨迹的阶段变化。与 ARST 组相比,ARW2 组(拉弓阶段;M=2.228 s, < 0.05,持弓阶段;M=4.414 s, < 0.05)的时间更长,身体角度在两组之间没有显著差异。此外,在拉弓阶段的前后轴方向上,ARW2 组的身体中心运动轨迹变化量明显大于 ARST 组,而弓心运动轨迹变化量在两组之间没有显著差异。