The journal of sport and exercise science最新文献

Assessing the Omega-3 Index of a professional cycling team and the influence of ad libitum provision of fish oil during the competitive season 评估专业自行车队的Omega-3指数和在比赛季节随意提供鱼油的影响

The journal of sport and exercise science Pub Date : 2023-01-01 DOI: 10.36905/jses.2023.02.05

引用次数: 0

No effect of facial expression on running economy in collegiate soccer players 面部表情对大学生足球运动员跑步经济性无影响

The journal of sport and exercise science Pub Date : 2023-01-01 DOI: 10.36905/jses.2023.03.01

{"title":"No effect of facial expression on running economy in collegiate soccer players","authors":"","doi":"10.36905/jses.2023.03.01","DOIUrl":"https://doi.org/10.36905/jses.2023.03.01","url":null,"abstract":"The facial feedback hypothesis (FFH) states that activation of facial muscles (i.e., smiling and frowning) can elicit emotional experiences within an individual. A positive emotional experience could result in a more “relaxed state” and result in improved running economy (RE). The purpose of this study was to determine if smiling while running would lead to an improvement in RE among a group of collegiate soccer players. Twenty-four Division III collegiate soccer players (females n = 14, males n = 10) completed four, six-minute running blocks at 70% of velocity at VO 2 max. The order of bouts was randomised with participants serving as their own controls. Participants completed running blocks while smiling (Smile), frowning (Frown), consciously relaxing their hands and upper bodies (Relax), and running as they “normally” would (Control). Each block was separated by two minutes of passive rest. Cardiorespiratory responses were recorded continuously, and participants reported perceived exertion (RPE) after each condition. A repeated measures analysis of variance (ANOVA) was run on all primary variables with a significance level set a priori at 0.05. There were no significant differences in RE across conditions (p > 0.05; Smile: mean = 33.7 mL∙kg -1 ∙min -1 , SD = 4.4; Frown: mean = 34.2 mL∙kg -1 ∙min -1 , SD = 4.1; Relax: mean = 34.2 mL∙kg -1 ∙min -1 , SD = 4.1; Control: mean = 34.2 mL∙kg -1 ∙min -1 , SD = 3.9). Our findings suggest smiling does not significantly improve RE among a group of collegiate soccer players. Further studies should examine this topic in other athlete groups and at various running intensities.","PeriodicalId":498692,"journal":{"name":"The journal of sport and exercise science","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135262495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinematic determinants of acceleration sprint performance in male academy Rugby Union players: Developing a technique model 男子橄榄球联盟运动员加速冲刺成绩的运动学决定因素:建立技术模型

The journal of sport and exercise science Pub Date : 2023-01-01 DOI: 10.36905/jses.2023.02.04

引用次数: 0

Inertial measurement unit analysis for providing greater diagnostic value during the modified 5-0-5 change of direction test 惯性测量单元分析，在改进的5-0-5变向试验中提供更大的诊断价值

The journal of sport and exercise science Pub Date : 2023-01-01 DOI: 10.36905/jses.2023.02.07

{"title":"Inertial measurement unit analysis for providing greater diagnostic value during the modified 5-0-5 change of direction test","authors":"","doi":"10.36905/jses.2023.02.07","DOIUrl":"https://doi.org/10.36905/jses.2023.02.07","url":null,"abstract":"Timing gates are currently the most common piece of equipment for measuring change of direction (COD) performance, however, they provide only a total time metric. A better understanding of the kinematics and kinetics during a COD movement beyond total time would provide coaches with a more comprehensive understanding of COD movement and how it can be improved. Therefore, the aim of this study was to determine the reliability of an inertial measurement unit (IMU) insole for measuring peak acceleration, peak deceleration, maximum speed, and ground contact time during a modified 5-0-5 change of direction (COD) test. Additionally, the strength of association between these IMU variables and timing light metrics was explored. Ten elite female netball athletes (age = 24.9 ± 5.0 years, height = 180.1 ± 6.5 cm, weight = 81.3 ± 15.0 kg) performed a modified 5-0-5 COD test across three testing occasions. Analysis revealed moderate to excellent relative consistency (ICC = 0.57 – 0.94) and acceptable absolute consistency (CV = 1.8 – 9.5%). Correlations ranged from 0.04 to 0.95, with peak acceleration having the strongest correlation with total time (r = 0.95). It appears that IMU insoles can be used to reliably measure performance during a COD task and provide additional diagnostics beyond time metrics.","PeriodicalId":498692,"journal":{"name":"The journal of sport and exercise science","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135311437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determinants and longitudinal changes of serum 25-hydroxyvitamin D during basic military training in female New Zealand Army recruits 新西兰女新兵基础军事训练期间血清25-羟基维生素D的决定因素和纵向变化

The journal of sport and exercise science Pub Date : 2023-01-01 DOI: 10.36905/jses.2023.02.06

引用次数: 0