优秀青少年男子篮球运动员腰腹屈伸肌群生物力学特征

背景：目前,等速测试系统在评定各专项运动员肌肉功能的应用越来越受到重视,但运用等速肌力测试技术研究优秀青少年男子篮球运动员腰腹肌力特征的报道较少。 目的：研究优秀青少年男子篮球运动员腰腹屈伸肌群生物力学特征,为篮球项目的腰腹力量训练、科学选材和预防腰腹损伤提供依据。 方法：采用Cybex-Norm等速肌力测试系统,对广州男子篮球队运动员18人测定腰腹屈伸肌群在慢速60(°)/s和快速180(°)/s的肌力和做功情况。 结果与结论：受试者腰腹屈伸肌群的峰力矩和相对峰力矩在同一测试速度下,伸肌群大于屈肌群(P < 0.01);腰腹屈伸肌群的峰力矩、相对峰力矩、总功均随着测试速度的增加呈减小趋势(P < 0.05),伸肌群的峰力矩和相对峰力矩减少更显著(P < 0.01);腰腹屈伸肌群的相对功率随着测试速度的增加而呈上升趋势(P < 0.01);外线球员腰腹屈伸肌群各测试指标成绩优于内线球员;在等速向心收缩时,随测试速度加快,腰腹屈伸肌群的峰力矩屈伸比呈递减趋势,躯干稳定性减弱。结果提示,优秀青少年男子篮球运动员腰腹伸肌群肌力大于屈肌群;外线球员腰腹屈伸肌群的肌力优于内线球员;等速快速运动时,腰腹屈伸肌群力量减小,腰腹关节屈伸肌力平衡性减弱,应加强青少年男子篮球运动员腰腹核心肌群快速力量训练。   中国组织工程研究杂志出版内容重点：组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程     

运动员Lisfranc损伤的诊疗策略及研究进展

BACKGROUND: Lisfranc injury is a concealed or low-energy damage in the athletic population. The optimal treatment strategies for Lisfranc injury in the athletes, especially for high-level or professional athletes, remain controversial. Improvement and development in treatment for Lisfranc injury are ongoing. OBJECTIVE: To summarize the diagnostic and therapeutic strategies and problems in surgery in Lisfranc injuries in the athletic population. METHODS: A computer-based online search was conducted in PubMed and Web of science databases from June 1909 to June 2014 to screen the relevant articles regarding the diagnostic and therapeutic strategies for Lisfranc injury using the key words “Lisfranc, injury, athletes”. The irrelevant and duplicate articles were excluded, and finally 43 articles were reviewed. RESULTS AND CONCLUSION: With the improvement and development in the therapeutic methods for Lisfranc injury, suture button fixation and bioabsorbable screw technology, as novel treatment strategies, have the potential to help restore and/or preserve stability at the tarsometatarsal joints, to avoid the potential risk for internal fixation irritation or the need for removal of hardware after fixation. However, more multi-center, prospective, randomized controlled clinical trials are required for seeking the optimal treatment for Lisfranc injury. For the athletes with Lisfranc injury, the best treatment option, removal timing of internal fixation devices, and the proper postoperative function exercise performed according the conditions of patients are vital for restoring the professional sports level. 中国组织工程研究杂志出版内容重点：组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程     

Lack of association between genotype score and sprint/power performance in the Japanese population

Objectives

This study aimed to examine the association between a total genotype score (TGS) based on previously published genetic polymorphism candidates and differences in sprint/power performance.

Mortality of top athletes,actors and clergy in Poland: 1924–2000 follow-up study of the long term effect of physical activity

Although a regular moderate physical activity is commonly accepted as an important heath promoting factor, the role of professional sport training is still under debate. The presented mortality analysis, concerning the period of 1946–2000, was performed for three groups of people completely healthy in youth, but exhibiting different physical activity level in those days: all Polish athletes who participated in the Olympic Games (1689 males, 424 females), drama actors/actresses (2406/1938), and monks/nuns (796/323). In all studied cohorts mortality was lower than that of gender adjusted, Polish urban population. The SMR values equaled 0.50 for male athletes, 0.78 for actors, 0.64 for monks, and respectively 0.73, 0.84, and 0.77 for corresponding female cohorts. Moreover, the direct comparison indicated that the mortality of male athletes was significantly lower than that of actors and monks: the age-standardized rate ratio of death were equal: 0.64 and 0.81 respectively. The sportsmen also exhibited the longest mean survival. The similar, but not statistically significant trends were observed for female cohorts. All the obtained results proved that high level physical activity in youth positively influenced men’s mortality, what was observed for the former athletes even after 40 years since the end of their professional carrier.     

Sports career-related concussion and mental health symptoms in former elite athletes

BackgroundIn elite sports, concussion is common and recurrent, especially in high-speed contact or collision sports such as american and australian football, ice hockey and rugby. Mental health symptoms (e.g., anxiety, depression, sleep disturbance) are often reported by former elite athletes, with prevalence ranging from 16% for distress to 26% for anxiety/depression. This article focuses on the potential relationship between sports career-related concussion and mental health symptoms in former elite athletes.MethodA narrative mini-review was based on the scientific literature.ResultsSome literature based on cross-sectional data suggests that sports career-related concussion might lead in the long term to mental health symptoms in former elite athletes. Retired professional American football players reporting three or more previous concussions were found to be three times more likely to be diagnosed with depression than those with no history of concussion. Former professional athletes from football, ice hockey and rugby who reported a history of six or more concussions were approximately up to five times more likely to report mental health symptoms.ConclusionsWhile longitudinal evidence about any causal relationship is lacking, the suggested relationship between sports career-related concussion and mental health symptoms in former elite athletes warrants the development of support measures for elite athletes transitioning out of sport, especially for those with a history of concussion.