CAJ | 학술논문

通过对男子青少年中跑运动员进行髋、膝关节等速肌力测试，发现男子青少年中跑运动员髋、膝关节肌力特点及薄弱肌群。方法：对16名上海优秀男子青少年中跑运动员进行髋、膝关节单侧等速向心60°／s×6和240°／s×6测试记录测试峰力矩、最大功率、屈伸肌峰力矩比值。结果：髋关节屈肌峰力矩和相对峰力矩在两个速度存在显著差异（P〈0．05），伸肌峰力矩和相对峰力矩两个速度存在高度显著差异（P〈0．01），屈伸肌峰力矩比值存在显著差异（P〈0．05），膝关节屈肌峰力矩及相对峰力矩无差异，而伸肌峰力矩和相对峰力矩在两个速度存在显著差异（P〈0．05），屈伸肌峰力矩比值无差异。研究对象髋关节屈肌最大功率和相对最大功率在两个速度存在高度显著差异（P〈0．01），伸肌最大功率和相对最大功率存在显著差异（P〈0．05），膝关节屈伸肌最大功率和相对最大功率在两个速度存在高度显著差异（P〈0．01）。结论：髋关节随测试速度增加最大力矩呈现下降趋势，高速测试时峰力矩屈／伸值下降，髋关节屈肌力量需加强；膝关节伸肌峰力矩随测试速度增加减小，屈肌及峰力矩屈／伸值变化不明显。
통과대남자청소년중포운동원진행관、슬관절등속기력측시，발현남자청소년중포운동원관、슬관절기력특점급박약기군。방법：대16명상해우수남자청소년중포운동원진행관、슬관절단측등속향심60°／s×6화240°／s×6측시기록측시봉력구、최대공솔、굴신기봉력구비치。결과：관관절굴기봉력구화상대봉력구재량개속도존재현저차이（P〈0．05），신기봉력구화상대봉력구량개속도존재고도현저차이（P〈0．01），굴신기봉력구비치존재현저차이（P〈0．05），슬관절굴기봉력구급상대봉력구무차이，이신기봉력구화상대봉력구재량개속도존재현저차이（P〈0．05），굴신기봉력구비치무차이。연구대상관관절굴기최대공솔화상대최대공솔재량개속도존재고도현저차이（P〈0．01），신기최대공솔화상대최대공솔존재현저차이（P〈0．05），슬관절굴신기최대공솔화상대최대공솔재량개속도존재고도현저차이（P〈0．01）。결론：관관절수측시속도증가최대력구정현하강추세，고속측시시봉력구굴／신치하강，관관절굴기역량수가강；슬관절신기봉력구수측시속도증가감소，굴기급봉력구굴／신치변화불명현。
Through testing hip and knee isokinetic strength of young men distance runners, itfound out young middle distance runners＇hip and knee muscle strength characteristics and weak muscles. Methods： Test unilateral hip and knee isokinetic strength of sixteen young runners at isokinetic concentric 60°/s×6 and 240°/s×6 . Record test peak torque, maximum power,flexion and extension muscle peak torque ratio. Results： The hip flexor peak torque and relative peak torque at two speeds were significantly different （P 〈 0.05 ） ;extensor peak torque and relative peak torque speed had highly significant difference （ P 〈 0.01 ）, peak torque of flexorand extensor Ratios were significantly different （ P 〈 0.05 ）, knee flexor peak torque and relative peak torque were of no difference, while the extensor peak torque and relative peak torque at two speeds were significantly different （ P 〈 0.05 ）, flexion and extension peak torque ratio of muscle were no difference. Hip flexor maximum power and relative maximum power hadhighly significant difference （ P 〈 0.01 ）, extensor maximum power and relative maximum power were significantly different （ P 〈 0.05 ）, maximum power of knee flexor and extensor power at two speed had significant difference （P 〈 O. 01 ）. Conclusion： The peak torque of hip show a downward trend with test speed increases, high -speed test flexor peak torque/ extension of hip was decreased. Hip flexor power needs to be improved;Knee extensor peak torque decreased with increasing test speed, and peak flexor Moment of flexion / extension values did not change significantly.