维普中文期刊产品整合服务
11篇 您的检索式:作者名="Helmi Z"
    题名 作者 年代 出处 被引量
1Effectiveness and time-course adaptation of resistance training vs. plyometric training in prepubertal soccer players显示文摘Purpose:This study aimed to assess the effectiveness and time course for improvements in explosive actions through resistance training(RT)vs.plyometric training(PT)in prepubertal soccer players.Methods:Thirty-four male subjects were assigned to:a control group(n=11);an RT group(5 regular soccer training sessions per week,n=12);a PT group(3 soccer training sessions and 2 RT sessions per week,n=11).The outcome measures included tests for the assessment of muscle strength(e.g.,1 repetition maximum half-squat test),jump ability(e.g.,countermovement jump,squat jump,standing long jump,and multiple 5 bounds test),linear speed(e.g.,20m sprint test),and change of direction(e.g.,Illinois change of direction test).Results:The RTG showed an improvement in the half-squat(△=13.2%;d=1.3,p<0.001)and countermovement jump(△=9.4%;d=2.4,p<0.001)at Week 4,whereas improvements in the 20-m sprint(△=4.2%;d=1.1,p<0.01);change of direction(CoD)(△=3.8%;d=2.1,p<0.01);multiple 5 bounds(△=5.1%;d=1.5,p<0.05);standing long jump(△=7.2%;d=1.2,p<0.01);squat jump(△=19.6%;d=1.5,p<0.01);were evident at Week 8.The PTG showed improvements in CoD(△=2.1%;d=1.3,p<0.05);standing long jump(△=9.3%;d=1.1,p<0.01);countermovement jump(△=16.1%;d=1.2,p<0.01);and squat jump(△=16.7%;d=1.4,p<0.01);at Week 8 whereas improvements in the 20-m sprint(△=4.1%;d=1.3,p<0.01);and multiple 5 bounds(△=7.4%;d=2.4,p<0.001);were evident only after Week.The RT and PT groups showed improvements in all sprint,CoD,and jump tests(p<0.05)and in half-squat performance,for which improvement was only shown within the RTG(p<0.001).Conclusion:RT and PT conducted in combination with regular soccer training are safe and feasible interventions for prepubertal soccer players.In addition,these interventions were shown to be effective training tools to improve explosive actions with different time courses of improvements,which manifested earlier in the RTG than in the PTG.These outcomes may help coaches and fitness trainers set out clear and concise goals of training according to the specific time course of improvement difference between RT and PT on proxies of athletic performance of prepubertal soccer players.Yassine Negra Helmi Chaabene Thomas Stöggl Mehréz Hammami Mohamed Souhaiel Chelly Younés Hachana 2020Journal of Sport and Health Science2020,9,6:3
2Wavelet shrinkage in noise removal of hyperspectral remote sensing data显示文摘HELMI Z SHARFRI M PAUL M M 2005America Jour- nal of Applied Sciences2005,2,7:1
3Cooperative problem-based learning(CPBL):A practical PBL model for a typical course显示文摘Mohd-Yusof K Helmi S A Jamaludin M Z 2011i JET2011,,3:1
4The Performance of Maximum Likelihood, Spectral Angle Mapper, Neural Net- work and Decision Tree Classifiers in Hyperspectral Image Analysis显示文摘Helmi Z M Affendi Suhaili and Shattri Mansor 2007Journal of Computer Science2007,3,6:1
5Wavelet shrinkage in noise removal of hyperspectral remote sensing data显示文摘Helmi Z Shafri M Paul M M 2005American Journal of Applied Sciences2005,2,7:1
6Assessment of zero drift in the codman intracranial pressure monitor:a study from 2 neurointensive care units显示文摘Yahia Z Al-Tamimil Adel Helmy 2009Neurosurgery2009,64,1:1
7Wavelet shrinkage in noise removal of hyperspectral remote sensing data显示文摘Helmi Z Shafri M Paul M M 2005American Journal of Applied Sciences2005,2,7:1
8Oil palm fruit bunch grading system using red, green and blue digital number显示文摘Meftah S M A Abdul R M S Helmi Z M S 2008Journal of Applied Sciences2008,8,8:1
9The Performance of Maximum Likelihood,Spectral Angle Mapper,Neural Network and Decision Tree Classifiers in Hyperspectral Image Analysis显示文摘Helmi Z M Affendi Suhaili Shattri Mansor 0,,06:1
10Large de- formations and burst of a capsule freely suspended in an elongational flow显示文摘LI X Z BARTHIS-BIESEL D HELMY A 1988Journal of Fluid Mechanics1988,187,:1
11Hyperspectral re- mote sensing of vegetation using red edge position techniques 显示文摘Helmi Z M S Mohamad A M S Azadeh G 2006American Janmal of Applied Sciences2006,3,6:1
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费