turnovers

  • 文章类型: Journal Article
    本研究的目的是研究获胜和失败的比赛结果之间与比赛相关的统计数据的差异,并确定在美国大学体育协会(NCAA)Division-I比赛中,哪些性能参数对从失败的比赛结果中获胜的影响最大。男子的篮球水平。数据抓取技术用于获取2018-2019赛季的公开数据。检查的游戏总数为5,147。使用独立的t检验来检查输赢游戏结果之间的统计学上的显着差异,同时使用全模型判别函数分析来确定每个游戏相关统计量的相对贡献及其对输赢游戏结果进行分类的能力(p<0.05)。除了在比赛结束时得分更多,本研究的结果表明,获胜团队:(A)尝试并取得更多的射门得分,三点,和罚球,(b)累积更多的防守和总篮板,助攻,偷窃,和街区,(c)失误和个人犯规较少,和(d)确保更大的射门得分,三点,和罚球命中率。此外,区分胜负结果的前三个表现参数是投篮命中率,防守篮板,和助攻,占16.8%,12.2%,以及解释方差总百分比的12.0%,分别(即,合计41.0%)。总的来说,这些发现支持了与进攻和防守游戏相关的统计数据的预期作用,并进一步了解了它们如何协同工作以优化获得所需游戏结果的机会。
    The purpose of the present study was to examine differences in game-related statistics between winning and losing game outcomes and determine which performance parameters have the greatest impact in classifying winning from losing game outcomes at the National Collegiate Athletic Association (NCAA) Division-I men\'s basketball level of competition. The data scraping technique was used to obtain publicly available data over a 2018-2019 season span. The total number of games examined was 5,147. Independent t-tests were used to examine statistically significant differences between winning and losing game outcomes, while a full model discriminant function analysis was used to determine the relative contribution of each game-related statistic and its ability to classify winning from losing game outcomes (p < 0.05). Alongside scoring a greater number of points at the end of the game, the findings of the present study indicate that winning teams: (a) attempted and made more field goals, three-point, and free-throw shots, (b) accumulated more defensive and total rebounds, assists, steals, and blocks, (c) had fewer turnovers and personal fouls, and (d) secured greater field goal, three-point, and free-throw shooting percentage. Moreover, the top three performance parameters discriminating winning from losing game outcomes were field goal percentage, defensive rebounds, and assists, accounting for 16.8%, 12.2%, and 12.0% of the total percentage of explained variance, respectively (i.e., 41.0% combined). Overall, these findings support the expected roles of offensive and defensive game-related statistics and provide further insight into how they work together to optimize the chances of securing the desired game outcome.
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  • 文章类型: Journal Article
    The interrelation between glucose and bone metabolism is complex and has not been fully revealed. This study aimed to investigate the association between insulin resistance, β-cell function and bone turnover biomarker levels among participants with abnormal glycometabolism.
    A total of 5277 subjects were involved through a cross-sectional study (METAL study, http://www.chictr.org.cn, ChiCTR1800017573) in Shanghai, China. Homeostasis model assessment of insulin resistance (HOMA-IR) and β-cell dysfunction (HOMA-%β) were applied to elucidate the nexus between β-C-terminal telopeptide (β-CTX), intact N-terminal propeptide of type I collagen (P1NP) and osteocalcin (OC). β-CTX, OC and P1NP were detected by chemiluminescence.
    HOMA-IR was negatively associated with β-CTX, P1NP and OC (regression coefficient (β) -0.044 (-0.053, -0.035), Q4vsQ1; β -7.340 (-9.130, -5.550), Q4vsQ1 and β -2.885 (-3.357, -2.412), Q4vsQ1, respectively, all P for trend <0.001). HOMA-%β was positively associated with β-CTX, P1NP and OC (β 0.022 (0.014, 0.031), Q4vsQ1; β 6.951 (5.300, 8.602), Q4vsQ1 and β 1.361 (0.921, 1.800), Q4vsQ1, respectively, all P for trend <0.001).
    Our results support that lower bone turnover biomarker (β-CTX, P1NP and OC) levels were associated with a combination of higher prevalence of insulin resistance and worse β-cell function among dysglycemia patients. It is feasible to detect bone turnover in diabetes or hyperglycemia patients to predict the risk of osteoporosis and fracture, relieve patients\' pain and reduce the expenses of long-term cure.
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  • 文章类型: Journal Article
    对真实比赛情况的统计分析在团队运动中的人才识别和球员招募中起着越来越重要的作用。最近,足球中的视觉探索频率(VEF)已被认为是决定成绩的重要参数之一。然而,直到现在,VEF几乎只在实验室环境中进行了研究。此外,在具有统计学意义的顶级球员中,个人的VEF与性能参数没有相关性。因此,本研究的目的是研究精英足球中场球员的VEF与个人表现参数之间的关系。使用游戏视频对参加2016年欧洲杯冠军的35名中场球员进行了分析。他们的VEF被分类为扫描,过渡扫描,和总扫描。线性回归分析用于将三个不同的VEF参数与各个球员的及格百分比和换手率相关联。线性回归显示扫描率(p=0.033,R2=3.0%)与总扫描率(p=0.015,R2=4.0%)和通过百分比之间存在显着正相关,但过渡扫描率与通过百分比之间没有显着相关(p=0.074)。过渡扫描率与周转率之间存在显着负相关(p=0.023,R2=3.5%),但总扫描率(p=0.857)或扫描率(p=0.817)与周转率之间没有显着负相关。总之,本研究表明,具有较高VEF的球员可能会完成更多的传球并导致更少的失误。VEF解释了传球完成率和流失率高达4%的差异,因此应被视为有助于评估球员和识别人才以及根据中场球员的需求量身定制培训干预措施的因素之一。职业足球的最高水平。
    Statistical analysis of real in-game situations plays an increasing role in talent identification and player recruitment across team sports. Recently, visual exploration frequency (VEF) in football has been discussed as being one of the important performance-determining parameters. However, until now, VEF has been studied almost exclusively in laboratory settings. Moreover, the VEF of individuals has not been correlated with performance parameters in a statistically significant number of top-level players. Thus, the objective of the present study was to examine the relationship between VEF and individual performance parameters in elite football midfielders. Thirty-five midfielders participating in the Euro 2016 championship were analyzed using game video. Their VEF was categorized into scans, transition scans, and total scans. Linear regression analysis was used to correlate the three different VEF parameters with the passing percentage and the turnover rate for individual players. The linear regression showed significant positive correlations between scan rate (p = 0.033, R 2 = 3.0%) and total scan rate (p = 0.015, R 2 = 4.0%) and passing percentage but not between transition scan rate and passing percentage (p = 0.074). There was a significant negative correlation between transition scan rate and turnover rate (p = 0.023, R 2 = 3.5%) but not between total scan rate (p = 0.857) or scan rate (p = 0.817) and turnover rate. In conclusion, the present study shows that players with a higher VEF may complete more passes and cause fewer turnovers. VEF explains up to 4% of variance in pass completion and turnover rate and thus should be considered as one of the factors that can help to evaluate players and identify talents as well as to tailor training interventions to the needs of midfielders up to the highest level of professional football.
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  • 文章类型: Journal Article
    Sex chromosomes can evolve during the evolution of genetic sex determination (GSD) from environmental sex determination (ESD). Despite theoretical attention, early mechanisms involved in the transition from ESD to GSD have yet to be studied in nature. No mixed ESD-GSD animal species have been reported, except for some species of Daphnia, small freshwater crustaceans in which sex is usually determined solely by the environment, but in which a dominant female sex-determining locus is present in some populations. This locus follows Mendelian single-locus inheritance, but has otherwise not been characterized genetically. We now show that the sex-determining genomic region maps to the same low-recombining peri-centromeric region of linkage group 3 (LG3) in three highly divergent populations of D. magna, and spans 3.6 Mb. Despite low levels of recombination, the associated region contains signs of historical recombination, suggesting a role for selection acting on several genes thereby maintaining linkage disequilibrium among the 36 associated SNPs. The region carries numerous genes involved in sex differentiation in other taxa, including transformer2 and sox9. Taken together, the region determining the genetic females shows characteristics of a sex-related supergene, suggesting that LG3 is potentially an incipient W chromosome despite the lack of significant additional restriction of recombination between Z and W. The occurrence of the female-determining locus in a pre-existing low recombining region illustrates one possible form of recombination suppression in sex chromosomes. D. magna is a promising model for studying the evolutionary transitions from ESD to GSD and early sex chromosome evolution.
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