Response of males and females to high-force eccentric exercise

It has previously been shown that females incur less muscle damage than males after strenuous exercise, but limited data are available for humans. To determine possible differences between the sexes in humans, the response to high-force eccentric exercise was examined in a large sample of women (n = 83) and men (n = 82). The participants performed a bout of eccentric exercise of the elbow flexors consisting of 70 maximal repetitions. Isometric strength, resting elbow angle and muscle soreness were measured before, immediately after (except soreness) and then daily for 7 days after exercise. There was a significant loss in strength among both groups (69% for women and 63% for men) (P < 0.01) immediately after exercise; at 168 h post-exercise, women still had a 27% strength loss and men had a 24% strength loss. No significant difference in strength loss or recovery rate was found between men and women. Soreness reached peak values 32-48 h post-exercise (P < 0.01), with no significant difference between men and women. Range of motion decreased significantly until 3 days after exercise (14.6 degrees or 0.255 rad loss for women; 12.2 degrees or 0.213 rad loss for men) (P < 0.01); at 168 h post-exercise, the women and men still showed a loss of 4.8 degrees (0.084 rad) and 4.0 degrees (0.07 rad), respectively. There was a significant interaction of sex x time (P < 0.01); a post-hoc test indicated that the women experienced a greater loss in range of motion at 72 h than men and this difference was maintained to 168 h post-exercise (P < 0.01). Thus, our results do not support the contention that women have a lower response to eccentric exercise than men.     

动热身活动

当有人问高级教练员和运动员静拉热身活动的目的是什么时，回答很有趣，他们认为静拉伸热身活动可减少对运动员的损伤程度，但是这一点至今仍未被证明。实际上，最近POPe对此也提出了相反意见。     

创立多文化图书馆:21世纪的战略决策

随着社会文化向着一个更加多样化的方向发展,教育者、雇用者和被雇用者都需要创造一个多文化的氛围。这种氛围应时刻反映着美国人口迅速变化的情况。据有关调查预测,在今后20多年中,美国人口将会增长4200万,其中拉丁美洲人将占47％,非裔美国人将占22％,亚洲人和其它肤色的人将占18％,白人只占13％。这种变化的趋势表明,经济的发展将会依赖于少数民族和女性的贡献。但目前图书管理人员的结构并求适应这种变化的趋势。本人认为,为了适应新形势的发展,所有类型的图书馆都应参与创造一个有益于多文化人口构成的环境。因此,本文旨在从…     

天下第一猫（节选）

你家养过猫吗？说不定养过吧。可是，你家的猫会说话吗？一定不能吧。瞧，贝比克家的小黑猫就会说话哦！而且，他奶奶养的小猪也会说话呢！     

All by Myself

有很多事情我可以做 自己动手; 我会梳头和系鞋带 自己动手； 我会洗手和洗脸 自己动手；     

残局之胜——Kode5瑞典预选赛第二场实例教学

残局是互相博弈所谓的残局,是指每局比赛进入到中盘之后的时间段。在这个时期,比赛的双方都已经进行了初步的交锋,在人员上都有损失,对对手的大致位置和意图都有了一定的判断,同时当局时间往往也所剩无几,场上队员需要根据之前比赛中得到的各种信息对对手可能采取的行为进行预测,从而做出自己的判断,并根据这种判断来决定自己的行动。简单的说,在残局阶段,场上队员更加需要猜测对手的意图,并做出反应。这种博弈必须在极短的时间之内做出,一旦做出之后就必须果断执行,因为对手也在猜测你可能的行为,并且根据他预测的你的行为而行动。这样讲是不是有点复杂?那么就来看看实际比赛中的残局情况吧。     

魔兽地图制作白金手册[四]

任何一张RPG地图都离不开触发器(以下简称T ),所有的情节、过场动画、对话、部分技能等等,都需要T的支持,在我们学习T之前,首先要了解的是T中的各种变量。首先运行WE,找到触发事件编辑按钮,或者使用快捷键F 4将其打开(图1)。这时候跳出“触发时间编辑器”,现在我们关心的只有“变量”这个按钮,点击它或者使用快捷键Ctrl+B来打开它(图2)。现在,我们可以看到变量窗口,点击“新变量”按钮,