Ihalainen Simo, Linnamo Vesa, Mononen Kaisu, Kuitunen Sami
KIHU - Research Inst for Olympic Sports, Jyväskylä, Finland.
Int J Sports Physiol Perform. 2016 Jul;11(5):671-7. doi: 10.1123/ijspp.2015-0211. Epub 2015 Nov 9.
To describe the long-term changes in shooting technique in relation to competition performances in elite air-rifle shooters.
Seventeen elite shooters completed simulated air-rifle shooting-competition series in 3 consecutive seasons, participating on 15 ± 7 testing occasions. Shooting score and aiming-point-trajectory variables were obtained with an optoelectronic shooting device, and postural-balance variables were measured with force platform. Shooters' competition results were collected from all international and national competitions during the 3-y period.
Mean test score, stability of hold, aiming accuracy, cleanness of triggering, and postural balance improved during the 3-y period (ANOVA, time, P < .05-.01). Seasonal mean test results in stability of hold (R = -.70, P = .000) and cleanness of triggering (R = -.75, P = .000) were related to competition performances. Changes in stability of hold (R = -.61, P = .000) and cleanness of triggering (R = -.39, P = .022) were also related to the changes in competition performances. Postural balance in shooting direction was more related to cleanness of triggering (R = .57, P = .000), whereas balance in cross-shooting direction was more related to stability of hold (R = .70, P = .000).
The shooting-technique testing used in the current study seems to be a valid and useful tool for long-term performance assessment. Stability of hold, cleanness of triggering, and postural balance can be further developed even at the elite level, resulting in improved competition performances.
描述优秀气步枪射击运动员射击技术与比赛成绩相关的长期变化情况。
17名优秀射击运动员在连续3个赛季中完成了模拟气步枪射击比赛系列,参与了15±7次测试。使用光电射击装置获取射击成绩和瞄准点轨迹变量,使用测力平台测量姿势平衡变量。收集运动员在3年期间所有国际和国内比赛的成绩。
在3年期间,平均测试成绩、握持稳定性、瞄准准确性、扳机扣动清晰度和姿势平衡均有所提高(方差分析,时间,P<.05-.01)。握持稳定性(R = -.70,P = .000)和扳机扣动清晰度(R = -.75,P = .000)的季节性平均测试结果与比赛成绩相关。握持稳定性(R = -.61,P = .000)和扳机扣动清晰度(R = -.39,P = .022)的变化也与比赛成绩的变化相关。射击方向的姿势平衡与扳机扣动清晰度的相关性更强(R = .57,P = .000),而横向射击方向的平衡与握持稳定性的相关性更强(R = .70,P = .000)。
本研究中使用的射击技术测试似乎是长期性能评估的有效且有用的工具。即使在精英水平,握持稳定性、扳机扣动清晰度和姿势平衡仍可进一步提高,从而提高比赛成绩。