维普中文期刊产品整合服务
9篇 您的检索式:作者名="L.Oliver"
    题名 作者 年代 出处 被引量
1夏季自然水体与大气界面间气态总汞的交换通量显示文摘利用动力学通量箱法与高时间分辨率大气测汞仪的联用技术,在瑞典西南的Kristineberg海洋观测站(KMRS)和Knobesholm的Hovg(?)rds(?)n河分别测定了夏季海水和河水表面与大气间汞的交换通量.在夏季,河水和海水都是大气汞的源.河水和海水表面与大气间汞的交换通量在夏季具有一致的昼夜变化规律,白天由水体向大气排汞且在正午达到最大值;夜间排汞量相对较小且有时会出现大气汞向水体沉降.河水与大气间汞的交换通量与光照强度呈线性正相关关系,与大气相对湿度呈线性负相关性,同时还与水体温度存在指数相关性.海水与大气间汞交换通量只与光照强度存在良好的线性正相关关系.水体中溶解态气汞的过饱和是水体汞向大气释放的驱动力.冯新斌 S.Jonas G.Katarina L.Oliver 2002中国科学(D辑)2002,32,7:15
2A Cognitive Model of the Antecedents and Consequences of Satisfaction Decisions显示文摘Richard L.Oliver 0,,11:1
3Assessing the di-mensionality and structure of the consumption experience:evaluation,feeling and satisfaction显示文摘Mano Haim Richard L.Oliver 0,,11:1
4Epidemiology of injuries in male and female youth football players:A systematic review and meta-analysis显示文摘Background:To conduct a systematic review and meta-analysis of epidemiological data of injuries in male and female youth football players.Methods:Searches were performed in MEDLINE/PubMed,Web of Science,Cochrane Library,and SPORTDiscus databases.Studies were considered if they reported injury incidence rate in male and female youth(≤19 years old)football players.Two reviewers(FJRP and ALV)extracted data and assessed trial quality using the Strengthening the Reporting of Observational Studies in Epidemiology(STROBE)statement and the Newcastle Ottawa Scale.The Grading of Recommendations Assessment,Development,and Evaluation approach determined the quality of evidence.Studies were combined using a Poisson random effects regression model.Results:Forty-three studies were included.The overall incidence rate was 5.70 injuries/1000 h in males and 6.77 injuries/1000 h in females.Match injury incidence(14.43 injuries/1000 h in males and 14.97 injuries/1000 h in females)was significantly higher than training injury incidence(2.77 injuries/1000 h in males and 2.62 injuries/1000 h in females).The lower extremity had the highest incidence rate in both sexes.The most common type of injury was muscle/tendon for males and joint/ligament for females.Minimal injuries were the most common in both sexes.The incidence rate of injuries increased with advances in chronological age in males.Elite male players presented higher match injury incidence than sub-elite players.In females,there was a paucity of data for comparison across age groups and levels of play.Conclusion:The high injury incidence rates and sex differences identified for the most common location and type of injury reinforce the need for implementing different targeted injury-risk mitigation strategies in male and female youth football players.Francisco Javier Robles-Palazón Alejandro López-Valenciano Mark De Ste Croix Jon L.Oliver Alberto García-Gómez Pilar Sainz de Baranda Francisco Ayala 2022Journal of Sport and Health Science2022,11,6:0
5Editorial显示文摘Welcome to the second edition of this two-part special issue of Journal of Science in Sport and Exercise(SSEJ)focussing on the topic of training young athletes.Part-two of the special issue continues to present a mix of review articles and empirical research that explore a diverse but intercon-nected range of topics.Throughout this special issue a multi-tude of perspectives and experimental designs are employed,bringing together inter and multidisciplinary research that consider a variety of interconnected themes related to train-ing different populations of young athletes.The collection of papers highlight how practitioners have the opportunity to positively impact on youth athletes in many different ways.Rhodri S.Lloyd Jon L.Oliver 2021Journal of Science in Sport and Exercise2021,3,1:0
6The Effects of a Four-Week Neuromuscular Training Program on Landing Kinematics in Pre-and Post-Peak Height Velocity Male Athletes显示文摘Purpose Neuromuscular training aims to enhance motor skill competency and increase muscle strength.However,the effectiveness of short-duration interventions focused on addressing lower limb injury risk factors in male youth athletes at different stages of maturity remains unknown.Methods Forty-eight young male academy cricket players[pre-peak height velocity(PHV)(n=26)and post-PHV(n=22)]were subdivided into an experimental group(EXP)who completed a 4-week progressive neuromuscular training program and controls(CON)participating in sport training only.Changes in injury risk were examined using the Tuck Jump Assess-ment(TJA)and Landing Error Scoring System(LESS).Results Total LESS score was significantly lower in both EXP maturity groups compared to CON following the 4-week program(10 to 6 and 6 to 4(~20%to 40%))in the pre-and post-PHV EXP groups,respectively.Significant within-group reductions in total LESS score were shown for the pre-PHV EXP group only(P<0.05).Conversely,greater changes in TJA total score were shown in post-PHV(5 to 3;40%)versus pre-PHV EXP(6 to 4.5;26%).Pre-PHV players showed positive changes in individual LESS criteria indicative of frontal plane control but not in knee valgus during the TJA,whereas post-PHV players did improve this criterion.Conclusion This study indicates it is possible to reduce TJA and LESS scores in male youth athletes by performing a 4-week neuromuscular training program,improving landing mechanics and reducing injury risk irrespective of maturity,but their effects are somewhat influenced by stage of maturation and the task performed.Paul J.Read Jon L.Oliver Ian J.Dobbs Megan A.Wong Nakul Tumkur Anil Kumar Rhodri S.Lloyd 2021Journal of Science in Sport and Exercise2021,3,1:0
7Editorial显示文摘Welcome to a special issue of Journal of Science in Sport and Exercise(SSEJ)focussing on the topic of training young athletes.Fostering a well-rounded development pathway for young athletes remains a“hot topic”within the fields of pediatric exercise science,sport science and medicine,and strength and conditioning.Rhodri S.Lloyd Jon L.Oliver 2020Journal of Science in Sport and Exercise2020,2,4:0
8Utility of Kinetic and Kinematic Jumping and Landing Variables as Predictors of Injury Risk: A Systematic Review显示文摘Purpose Jump-landing assessments provide a means to quantify an individual’s ability to attenuate ground reaction forces,generate lower limb explosive power and maintain joint alignment.In order to identify risk factors that can be targeted through appropriate training interventions,it is necessary to establish which(scalar)objective kinetic,kinematic,and performance measures are most associated with lower-extremity injury.Methods Online searches of MEDLINE,SCOPUS,EBSCOHost,SPORTDiscus and PubMed databases were completed for all articles published before March 2020 in accordance with PRISMA guidelines.Results 40 articles investigating nine jump-landing assessments were included in this review.The 79%of studies using drop jump(n=14)observed an association with future injury,while only 8%of countermovement jump studies(n=13)observed an association with injury risk.The 57%of studies using unilateral assessments found associations with risk of injury(n=14).Studies using performance measures(jump height/distance)as outcome measure were only associated with injury risk in 30%of cases.However,those using kinetic and/or kinematic analyses(knee abduction moment,knee valgus angle,knee separation distance,peak ground reaction force)found associations with injury in 89%of studies.Conclusion The landing element of jump-landing assessments appears to be superior for identifying individuals at greater risk of injury;likely due to a closer representation of the injury mechanism.Consequently,jump-landing assessments that involve attenuation of impact forces such as the drop jump appear most suited for this purpose but should involve assessment of frontal plane knee motion and ground reaction forces.Jason S.Pedley Rhodri S.Lloyd Paul J.Read Isabel S.Moore Mark De Ste Croix Gregory D.Myer Jon L.Oliver 2020Journal of Science in Sport and Exercise2020,2,4:0
9The Influence of Biological Maturity on Dynamic Force-Time Variables and Vaulting Performance in Young Female Gymnasts显示文摘Purpose This cross-sectional study investigated dynamic force-time variables and vaulting performance in young female gymnasts of different maturity status.Methods 120 gymnasts aged 5-14 years were sub-divided into maturity groupings using percent of predicted adult height(%PAH)attained.Participants performed three jumping protocols,the squat jump(SJ),countermovement jump(CMJ)and drop jump(DJ),before completing straight jump vaults that were recorded using two-dimensional video.Results Jumping performance improved with biological maturity evidenced by the most mature gymnasts’producing sig-nificantly more absolute force(P<0.05;all d>0.78),impulse(P<0.05;all d>0.75)and power(P<0.05;all d>0.91)than the least mature group,resulting in the greater jump heights(P<0.05;all d>0.70).While,no significant differences were observed in relative peak force across multiple tests,measures of relative peak power did significantly increase with maturity.Based upon regression analyses,maturation was found to influence vertical take-off velocity during vaulting,explaining 41%of the variance in each jumping protocol.Across all tests,the DJ was found to have the highest predictive ability of vaulting vertical take-off velocity,explaining 55%of the total variance.Conclusion Biological maturation impacts jump height and underpinning mechanical variables in young female gymnasts.Vaulting vertical take-off velocity appears to be influenced by maturation and various dynamic force-time variables,par-ticularly those during DJ,which had the highest explained total variance.Sylvia Moeskops Jon L.Oliver Paul J.Read John B.Cronin Gregory D.Myer G.Gregory Haff Isabel S.Moore Rhodri S.Lloyd 2020Journal of Science in Sport and Exercise2020,2,4:0
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