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The effects of plyometric jump training on lower-limb stiffness in healthy individuals:A meta-analytical comparison

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Journal of Sport and Health Science 2023年第2期12卷 236-245页

作者： Jason Moran Bernard Liew Rodrigo Ramirez-Campillo Urs Granacher Yassine negra Helmi Chaabene School of Sport Rehabilitation and Exercise SciencesUniversity of EssexColchesterEssex CO43SQUK Department of Physical Activity Sciences Universidad de Los LagosOsorno 5290000Chile Division of Training and Movement Science University of PotsdamPotsdam 14469Germany Higher Institute of Sport and Physical Education of Ksar Saı¨d University of Manouba Tunis 2037Tunisia High Institute of Sports and Physical Education of Kef University of JendoubaJendouba 8189Tunisia

Purpose:This study aimed to examine the effects of plyometric jump training(PJT)on lower-limb ***:Systematic searches were conducted in PubMed,Web of Science,and *** participants included healthy males and females who undertook a PJT programme isolated from any other training ***:There was a small effect size(ES)of PJT on lower-limb stiffness(ES=0.33,95%confidence interval(95%CI):0.07-0.60,z=2.47,p=0.01).Untrained individuals exhibited a larger ES(ES=0.46,95%CI:0.08-0.84,p=0.02)than trained individuals(ES=0.15,95%CI:-0.23 to 0.53,p=0.45).Interventions lasting a greater number of weeks(>7 weeks)had a larger ES(ES=0.47,95%CI:0.06-0.88,p=0.03)than those lasting fewer weeks(ES=0.22,95%CI:-0.12 to 0.55,p=0.20).Programmes with2 sessions per week(ES=0.20,95%CI:-0.10 to 0.50,p=0.18).Programmes with500 jumps per week had negative effects(ES=-0.22,95%CI:-1.10 to 0.67,p=0.63).Programmes with>7.5 jumps per set showed larger effect sizes(ES=0.55,95%CI:0.02-1.08,p=0.04)than those with7 weeks).

关键词： Jumps Stretch shortening cycle Tendon

Effectiveness and time-course adaptation of resistance training vs. plyometric training in prepubertal soccer players

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Journal of Sport and Health Science 2020年第6期9卷 620-627页

作者： Yassine negra Helmi Chaabene Thomas Stöggl Mehréz Hammami Mohamed Souhaiel Chelly Younés Hachana Research Unit“Sport Performance Health&Society”Higher Institute of Sport and Physical Education of Ksar SaidTunis 2009Tunisia Tunisian Research Laboratory“Sports Performance Optimization” National Center of Medicine and Science in Sports(CNMSS)Tunis 1003Tunisia Department of Sport Science and Kinesiology University of SalzburgSalzburg 5400Austria Higher Institute of Sports and Physical Education Manouba UniversityTunis 2009Tunisia

Purpose:This study aimed to assess the effectiveness and time course for improvements in explosive actions through resistance training(RT)*** training(PT)in prepubertal soccer ***: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 *** 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 *** 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 *** 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 *** outcomes may help coaches and fitness trainers set out clear and concise

关键词： Change of direction Jump performances Plyometric training Resistance training Soccer Time course

The effects of plyometric jump training on physical fitness attributes in basketball players:A meta-analysis`

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Journal of Sport and Health Science 2022年第6期11卷 656-670,F0003页

作者： Rodrigo Ramirez-Campillo Antonio García-Hermoso Jason Moran Helmi Chaabene Yassine negra Aaron T.Scanlan Department of Physical Activity Sciences Universidad de Los LagosOsorno 5290000Chile Centro de Investigación en Fisiología del Ejercicio Facultad de CienciasUniversidad MayorSantiago 7500000Chile Navarrabiomed Complejo Hospitalario de Navarra(CHN)Universidad Pública de Navarra(UPNA)IdiSNAPamplona 31008Spain Laboratorio de Ciencias de la Actividad Física el Deporte y la SaludUniversidad de Santiago de ChileUSACHSantiago 9170020Chile School of Sport Rehabilitation and Exercise SciencesUniversity of EssexColchesterEssexCO43SQUnited Kingdom Division of Training and Movement Sciences University of PotsdamPotsdam 14469Germany High Institute of Sports and Physical Education KefUniversity of JendoubaLa Manouba 8189Tunisia Research Unit(UR 17JS01 Sport PerformanceHealth&Society)Higher Institute of Sport and Physical Education of Ksar SaîdUniversity of“La Manouba”Rockhampton 2037Tunisia Human Exercise and Training Laboratory School of HealthMedical and Applied SciencesCentral Queensland UniversityRockhamptonQueenslandQLD 4702Australia

Background:There is a growing body of experimental evidence examining the effects of plyometric jump training(PJT)on physical fitness attributes in basketball players;however,this evidence has not yet been comprehensively and systematically ***,our objective was to meta-analyze the effects of PJT on physical fitness attributes in basketball players,in comparison to a control ***:A systematic literature search was conducted in the databases PubMed,Web of Science,and Scopus,up to July ***-reviewed controlled trials with baseline and follow-up measurements investigating the effects of PJT on physical fitness attributes(muscle power,i.e.,jumping performance,linear sprint speed,change-of-direction speed,balance,and muscle strength)in basketball players,with no restrictions on their playing level,sex,or ***’s g effect sizes(ES)were calculated for physical fitness *** a random-effects model,potential sources of heterogeneity were selected,including subgroup analyses(age,sex,body mass,and height)and single training factor analysis(program duration,training frequency,and total number of training sessions).Computation of metaregression was also ***:Thirty-two studies were included,involving 818 total basketball ***(p10 m(ES=0.92),change-of-direction performance time across distances≤40 m(ES=1.15)and>40 m(ES=1.02),dynamic(ES=1.16)and static balance(ES=1.48),and maximal strength(ES=0.57).The meta-regression revealed that training duration,training frequency,and total number of sessions completed did not predict the effects of PJT on physical fitness *** analysis indicated greater improvement

关键词： Exercise therapy Human physical conditioning Resistance training Stretch reflex Team sports

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建筑修复课程：研究与设计

建筑遗产 2017年第4期 16-28页

作者： [意大利]里卡尔多·达拉·内格拉田阳(译) 李悦(译) 费拉拉大学费拉拉44121 不详

建筑修复与建筑设计并没有本质区别,是不同情况下使建筑"完形化"的不同形式。因此建筑修复并非一门不需要理论批判的纯技术学科。本文详细介绍了意大利相关院校建筑修复课程中研究与设计的具体步骤,阐明了建筑修复课程如何通过指导学生... 详细信息

建筑修复与建筑设计并没有本质区别,是不同情况下使建筑"完形化"的不同形式。因此建筑修复并非一门不需要理论批判的纯技术学科。本文详细介绍了意大利相关院校建筑修复课程中研究与设计的具体步骤,阐明了建筑修复课程如何通过指导学生进行扎实的历史研究、建造技术研究以及理论研究,到最终向建筑设计转化的完整过程,使得该课程成为培养年轻建筑师的关键性综合环节。而在真实案例中全面培养学生的历史观、研究能力与设计能力,就是在建筑学专业中开展修复课程的本质。

关键词：修复培养建筑师历史批判性传统建造技术空缺填补整合文本

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细菌拯救加勒比土壤

环球科学 2021年第17期 70-77页

作者：奥里安纳·德拉-内格拉皮埃尔-卢瓦克·赛义迪李诗源(翻译) 法国原子能和替代能源委员会(CEA) 巴黎埃夫里大学化学系不详

20世纪七八十年代,十氯酮曾作为一种杀虫剂拯救了法属西印度群岛上的香蕉种植园,但这类具有毒性的物质污染了土壤和水体,让当地人深受其害。如今,一项新研究让人们看到了消除污染的希望。2019年12月2日,由法国议会派出的调查委员会发布... 详细信息

20世纪七八十年代,十氯酮曾作为一种杀虫剂拯救了法属西印度群岛上的香蕉种植园,但这类具有毒性的物质污染了土壤和水体,让当地人深受其害。如今,一项新研究让人们看到了消除污染的希望。2019年12月2日,由法国议会派出的调查委员会发布了一份报告。报告关注了在加勒比地区的法属西印度群岛,居民使用的十氯酮(chlordecone)对经济、健康和环境造成的影响。

关键词：物质污染消除污染加勒比地区西印度群岛种植园造成的影响拯救