运动性疲劳动物模型的研究

通过文献资料调研,论述了运动性疲劳动物模型的分类依据及建模方法;在分析已建模型的基础上,探讨了建立标准化的运动性疲劳模型的质量控制问题。     

滚动轴承的疲劳故障分析及最佳游隙选择

对滚动轴承疲劳故障产生的机理及疲劳破损过程进行了详细的分析,并提出了轴承最佳游隙的选择原则.     

运动性疲劳研究回顾

运动性疲劳是体育界十分关注的问题，为了对运动性疲劳有一个全面的认识，对前人的研究成果加以归纳，对运动性疲劳做个概括性的叙述，以供参考。     

对课余训练运动员疲劳问题的探讨

在课余训练中,高强度、大负荷训练,仍然是训练中的主要手段和显著特点.训练后能快速消除疲劳,是提高运动成绩的主要条件,是教练员和运动员亟待解决的主要问题之一.本文就疲劳产生的原因,外在表现,疲劳消除的方法提出几点看法.     

析学生体育学习过程中的心理疲劳

学生在体育学习的过程中，往往会表现出一种主观体验的倦态，这对学生的心理健康是十分有害的。通过探讨学生在体育学习过程中心理疲劳的基本特征，影响因素，诊断方法以及预防措施，旨在优化体育教学过程，完善学生的个性，促进学生的心理健康。     

神经递质和调质对运动性中枢疲劳影响的研究进展(综述)

肌肉疲劳是一种很复杂的现象。随着新技术的应用和神经生物学研究的发展，运动性中枢(CNS)疲劳的研究也取得了突破性进展。现已提出了几种解释中枢疲劳的生物机制，其中涉及到了一些中枢神经递质和调质，就此对这一领域的最新研究进展作一综述。     

运动性疲劳分子生物学机制的研究进展

从四个方面(细胞内分子、细胞膜分子、细胞外分子和其他广泛存在的分子和离子)综合分析运动性疲劳分子生物学机制的研究进展,以期达到完善运动性疲劳机制理论体系的目的.     

EEG闪光刺激诱发试验对运动员神经疲劳评定的研究

本文常规EEG诊断运动疲劳的阳性率为54.54％,应用间歇性节律闪光刺激诱发试验同步记录的EEG结果表明:有运动疲劳的运动员组Alpha波幅下降29％(P<0.05),随着闪光刺激频率的加快产生节律同化的频度逐渐下降、无节律同化的阳性率上升到72.73％(P<0.001),潜伏期和恢复期时间不正常的阳性率分别为74.56％和85.46％(G<0.001),比常规EEG诊断运动疲劳的阳性率明显高。     

Understanding how social worker compassion fatigue and years of experience shape custodial decisions

BackgroundCompassion fatigue (i.e., a worker’s diminished ability to empathize with clients) is common among “helping workers” and can result in psychological detachment from clients as a coping mechanism.ObjectiveIn the present research, we explored the relationship between social workers’ compassion fatigue and years of job experience on hypothetical child custody case judgments.Participants and settingIn two separate studies, individuals with experience working with children in child dependency court (predominantly social workers, Study 1: N = 173, Study 2: N = 119) were recruited on Amazon’s Mechanical Turk and read a vignette depicting a mother attempting to regain custody.ResultsSupporting hypotheses, compassion fatigue significantly mediated the relationship between increased years of social worker job experience on recommendations that a neglectful mother receive custody, Indirect Effect = .06, CIs [.026, .127] (Study 1). We also found preliminary support for our hypothesized theoretically derived serial path model, in which (a) social worker compassion fatigue predicts anticipated secondary traumatic stress associated with the child neglect case, B = .54, p = .0001; (b) secondary traumatic stress predicts detachment from the neglected child, B = .27, p = .0003; (c) detachment from the child predicts job efficacy cynicism B = .65, p < .0001; and (d) job efficacy cynicism predicts decisions to allocate custody to the neglectful mother, B = .46, p = .005 (Study 2).ConclusionOur research shows that compassion fatigue among social workers may change the lens through which they perceive cases of child abuse.     

The effect of smartphones and playing video games on decision-making in soccer players: A crossover and randomised study

ABSTRACT

The objective of this study was to analyse the effect of the use of social networks in smartphones or playing video games on the passing decision-making performance in professional soccer athletes. Participants were 25 male professional soccer athletes (mean ± SD: age 23.4 ± 2.8 years). The participants performed three randomised conditions divided into three groups: control (CON), smartphone (SMA), and video game (VID). Before and after each experimental condition, the Stroop Task assessed the level of induced mental fatigue. Then, the athletes performed a simulated soccer match. A CANON® camera recorded the matches for further analysis on passing decision-making performance. A group effect was identified (p < .01) with impairment on passing decision-making performance for the SMA (p = .01, ES = 0.5) and VID (p = .01, ES = 0.5) conditions. We concluded that the use of social networks on smartphones and/or playing video games right before official soccer matches might impair the passing decision-making performance in professional soccer athletes.