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Myths and Misconceptions About Exercise-Associated Muscle Cramping 关于运动相关肌肉痉挛的神话和误解
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000187
K. Miller
INTRODUCTION Exercise-associated muscle cramps (EAMCs) are painful involuntary contractions of skeletal muscle during or after exercise. They are the most common heat-related illness (5) and affect recreationally active individuals (17) and competitive athletes alike (2,8,25). Despite their commonality, fewwell-designed research studies exist examining the cause, treatment, and prevention of EAMCs. As a result, numerous myths exist about EAMCs. My goal in thisMedical Report will be to debunk some of these myths by examining the scientific evidence.
运动相关性肌肉痉挛(eamc)是在运动中或运动后骨骼肌不自主的疼痛收缩。它们是最常见的与热有关的疾病(5),并且影响娱乐活动的人(17)和竞技运动员(2,8,25)。尽管它们具有共性,但很少有精心设计的研究来检查EAMCs的病因、治疗和预防。因此,存在着许多关于eamc的神话。在这篇医学报告中,我的目标是通过检验科学证据来揭穿这些神话。
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引用次数: 4
Care of the Athlete with Diabetes 糖尿病运动员的护理
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000215
Vanessa A. Curtis, A. Peterson
Patients with type 1 diabetes mellitus (T1DM) should be encouraged to live full and healthy lives. For many patients with T1DM, this includes sports participation. This review provides an overview of T1DM and its treatment with emphasis on challenges that are encountered frequently by the athlete and his or her health care providers. Glucose homeostasis requires a dynamic balance that includes mechanisms to raise and lower blood glucose. Normally, beta cells in the pancreas respond to dietary carbohydrate intake and release insulin to maintain blood glucose within a narrow target for optimal health. Insulin allows blood glucose to be used for energy or stored for future use. Later, when the blood glucose begins to fall, the pancreas quickly halts insulin release. In an exercising or fasted state, when cells need more energy than is available, the body releases counterregulatory hormones (glucagon, epinephrine, norepinephrine, cortisol, and growth hormone) to help mobilize glucose that has been stored and promote energy release from fat stores. In addition, working skeletal muscle expresses transporters that allow it to take in glucose from the blood without the help of insulin. This is very important for glucose homeostasis in athletes. T1DM is caused by the autoimmune destruction of the pancreatic beta cells. The condition has a prevalence of approximately 1 in 500 Americans less than 20 years of age, with the highest prevalence in non-Hispanic whites (1). This results in an insulin deficiency that prevents the blood glucose from entering cells and providing energy, which, in turn, leads to increases in blood glucose (hyperglycemia) while depriving the cell of its main energy source. The body responds to the lack of available energy by mobilizing energy stored as fat. The unchecked breakdown of the body's fat stores (fatty acid oxidation) results in weight loss and the production of ketones as a byproduct. Ketones do provide an energy substrate but also are strongly anionic and can lead to dangerous acidosis (ketoacidosis). Patients with T1DM are dependent on injections or infusions of exogenous insulin. For many years, the two available forms of insulin were short-acting regular insulin and intermediateacting neutral protamine Hagedorn (NPH) insulin. These insulins are given at set doses and times, typically in three daily injections. With this plan, the patient must eat a constant amount of carbohydrates at prescribed times to maintain euglycemia. Although effective and relatively inexpensive, the regular/NPH regimen requires adherence to a rigid lifestyle. With the advent
应鼓励1型糖尿病(T1DM)患者过充实健康的生活。对于许多T1DM患者来说,这包括参加体育运动。这篇综述概述了T1DM及其治疗,重点是运动员和他或她的卫生保健提供者经常遇到的挑战。葡萄糖稳态需要动态平衡,包括提高和降低血糖的机制。正常情况下,胰腺中的β细胞对饮食中的碳水化合物摄入做出反应,并释放胰岛素,将血糖维持在最佳健康的狭窄目标范围内。胰岛素使血糖被用作能量或储存起来以备将来使用。后来,当血糖开始下降时,胰腺迅速停止胰岛素的释放。在运动或禁食状态下,当细胞需要的能量超过可用的能量时,身体会释放反调节激素(胰高血糖素、肾上腺素、去甲肾上腺素、皮质醇和生长激素),以帮助调动储存的葡萄糖,并促进脂肪储存的能量释放。此外,工作中的骨骼肌表达转运蛋白,使其能够在没有胰岛素的帮助下从血液中吸收葡萄糖。这对运动员的葡萄糖稳态非常重要。T1DM是由自身免疫破坏胰腺细胞引起的。20岁以下的美国人大约每500人中就有1人患有这种疾病,其中非西班牙裔白人的患病率最高(1)。这导致胰岛素缺乏,阻止血糖进入细胞并提供能量,进而导致血糖升高(高血糖症),同时剥夺了细胞的主要能量来源。身体通过动员储存为脂肪的能量来应对可用能量的缺乏。身体脂肪储存的不受控制的分解(脂肪酸氧化)导致体重减轻和产生酮作为副产物。酮类确实提供能量底物,但也是强阴离子,可导致危险的酸中毒(酮症酸中毒)。T1DM患者依赖于注射或输注外源性胰岛素。多年来,两种可用的胰岛素是短效常规胰岛素和中效中性鱼精蛋白Hagedorn (NPH)胰岛素。这些胰岛素按固定剂量和时间注射,通常每天注射三次。按照这个计划,病人必须在规定的时间吃一定量的碳水化合物以维持血糖正常。虽然有效且相对便宜,但常规/NPH方案需要坚持严格的生活方式。随着时代的到来
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引用次数: 0
THE EVOLUTION OF THE SCIENCE OF RESISTANCE TRAINING: The Early Pioneers of Progress 阻力训练科学的演变:进步的早期先驱
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000241
W. Kraemer
Ph ot o co ur te sy of D rs .T od d. The evolution of the science of resistance training has been influenced by the anecdotal insights of individuals involved with the various sports using resistance training (e.g., Olympic weightlifting), commercial product development, and the progressive advances in the technological and analytical capabilities available in exercise science laboratories around the world. Scientists who studied strength training were therefore interested from different perspectives resulting in a continuum from basic to more applied research studies. The early evolution of the science of resistance training started at the more applied aspects of understanding how programs affected end point outcomes in patients and individuals interested in strength fitness. Through time, the search for greater understanding of the underlying mechanisms of adaptation pushed the study of resistance training into the hands of many different laboratories because of its prolific adaptive characteristics. The early evolution of the science of resistance training in the United States offers some subtle insights into its worldwide impact for the field of resistance training research. Therefore, the purpose of this brief review is to provide a narrow perspective on part of the history that shaped the science in the field of resistance training. For an extensive view of resistance training history and physical culture, I direct your attention to the University of Texas and the Stark Center for Physical Culture and Sport, directed by Drs. Janice and Terry Todd (Figure 1).
阻力训练科学的发展受到了以下因素的影响:参与各种运动中使用阻力训练的个人的轶事见解(例如,奥林匹克举重),商业产品开发,以及世界各地运动科学实验室中可用的技术和分析能力的进步。因此,研究力量训练的科学家们从不同的角度感兴趣,从而形成了从基础研究到更多应用研究的连续体。阻力训练科学的早期发展始于更多的应用方面,即了解项目如何影响对力量健身感兴趣的患者和个人的终点结果。随着时间的推移,为了更好地理解适应的潜在机制,阻力训练的研究进入了许多不同的实验室,因为它具有丰富的适应性特征。美国阻力训练科学的早期发展为其对阻力训练研究领域的全球影响提供了一些微妙的见解。因此,这个简短的回顾的目的是提供一个狭窄的视角,对历史的一部分,塑造科学的阻力训练领域。想要深入了解抗阻训练的历史和体育文化,我建议你关注德克萨斯大学和斯塔克体育文化与运动中心。Janice和Terry Todd(图1)。
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引用次数: 1
ARE COMPRESSION GARMENTS BENEFICIAL FOR ENDURANCE RUNNERS 压缩服对耐力跑者有益吗
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000190
B. Watson, S. Rorke
To understand the efficacy of compression garments on endurance running performance and recovery.
了解压缩服装对耐力跑性能和恢复的功效。
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引用次数: 2
STRENGTH TRAINING FOR THOSE WHO NEED IT MOST 为那些最需要的人提供力量训练
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000237
W. Westcott
To recognize that more than 65% of American adults are overweight or obese and more than 95% of American adults perform too little physical activity. To understand that resistance exercise is a highly effectivemeans for rebuilding muscle, recharging resting metabolism, and reducing fat in overweight and obese individuals. To realize that people with high body weight and low physical fitness are more likely to engage in low-volume and short-duration strength training programs. To design research-based resistance training protocols that are physiologically and psychologically appropriate for beginning exercisers. To evaluate similarities and differences in sex responses to resistance exercise.
要认识到,超过65%的美国成年人超重或肥胖,超过95%的美国成年人运动量过少。要理解阻力运动是一种非常有效的方法来重建肌肉,充电静息代谢,并减少超重和肥胖的人的脂肪。认识到高体重和低体能的人更有可能参与小容量和短时间的力量训练项目。设计基于研究的阻力训练方案,使之在生理和心理上适合初学者。评估抗阻运动中性别反应的异同。
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引用次数: 2
PHYSICAL ACTIVITY PROGRAMMING FOR CLIENTS WITH OBESITY: Considerations for Exercise Professionals 肥胖客户的体育活动规划:运动专业人士的考虑
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000218
A. Dikareva, R. Andersen
Copyright © 2016 American C lthough the prevalence of obesity in North America has plateaued, the proportion of adults living with obesity (body mass index [BMI] ≥ 30 kg/m) 2 A severe obesity (BMI ≥ 40 kg/m ) remains high (46). It is well documented that regular physical activity (PA) is an important habit to prevent unhealthy weight gain and various conditions such as Type 2 diabetes, hypertension, and cardiovascular disease. Importantly, the cardioprotective effects of PA are so potent that habitual PA has been shown to significantly attenuate the risk of mortality and morbidity irrespective of weight and blood pressure status (14,28,43). Given that PA confers innumerable health benefits, improving long-term adoption of regular PA, rather than weight loss, should be at the forefront of health promotion, clinical practice, and policy. So much so that renowned exercise scientist, Dr. Steven Blair, noted in his 2004 editorial in The Journal of the American Medical Association that “the ‘fitness vs. fatness’ debate [is] largely academic” and went on to urge “physicians, researchers, and policymakers [to] spend less energy debating the relative health importance of fitness and obesity andmore time focusing on how to get sedentary individuals to become active” (3). Current data on PA habits of North Americans point to an unfortunate reality: most adults do not meet the recommended PA guidelines of 150 minutes of moderate-to-vigorous PA per week minimum (8,19,48). Moreover, individuals living with obesity are less likely to meet PA guidelines compared with individuals in lower weight categories (8,48). Physical inactivity among individuals with obesity is a complex and poorly understood phenomenon. A growing body of evidence suggests that societal antifat attitudes are negatively impacting the uptake of PA-promoting behaviors among adults. Media and cultural misrepresentations of this multifactorial phenotype on reality television shows, such as “The Biggest Loser,”may partially be responsible for cultivating the characterization that people with larger bodies are unhealthy, lazy, and lacking self-discipline (55). Portraying obesity
版权所有©2016 American C虽然北美的肥胖患病率已经趋于稳定,但成年人肥胖(体重指数[BMI]≥30 kg/m)的比例仍然很高(46)。有充分的证据表明,有规律的体育活动(PA)是预防不健康体重增加和各种疾病(如2型糖尿病、高血压和心血管疾病)的重要习惯。重要的是,PA的心脏保护作用是如此强大,习惯性PA已被证明可以显著降低死亡率和发病率的风险,而不考虑体重和血压状况(14,28,43)。鉴于PA带来了无数的健康益处,改善长期定期PA的采用,而不是减肥,应该是健康促进、临床实践和政策的前沿。因此,著名的运动科学家史蒂文·布莱尔博士在2004年《美国医学会杂志》的社论中指出,“‘健身vs肥胖’的争论在很大程度上是学术性的”,并继续敦促“医生、研究人员、政策制定者[应该]少花精力讨论健身和肥胖对健康的相对重要性,多花时间关注如何让久坐不动的人变得活跃起来”(3)。目前关于北美人健身习惯的数据指出了一个不幸的现实:大多数成年人没有达到推荐的健身指南,即每周至少进行150分钟的中等至高强度的健身(8,19,48)。此外,与体重较轻的个体相比,肥胖个体更不可能满足PA指南(8,48)。肥胖患者缺乏身体活动是一个复杂而又鲜为人知的现象。越来越多的证据表明,社会反肥胖的态度对成年人中促进pa行为的吸收产生了负面影响。媒体和文化在电视真人秀节目中对这种多因素表现型的歪曲,如“最大的失败者”,可能部分地造成了人们对体型较大的人不健康、懒惰和缺乏自律的塑造(55)。描述肥胖
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引用次数: 4
MEDICINE BALL POWER TRAINING EXERCISES FOR OLDER ADULTS 老年人的实心球力量训练练习
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000242
C. Thompson
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引用次数: 0
Ten Engaging Facts About Heart Attacks 关于心脏病发作的十个有趣事实
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2016-01-01 DOI: 10.1249/fit.0000000000000222
J. A. Peterson
Copyr 1 YGEN. Approximately every 43 seconds, someone in the United States has a heart attack. Of the 735,000 Americans who experience one annually, approximately 15% will die. Truth be known, the onset of a heart attack is a fairly straightforward event. A heart attack occurs when the blood supply to the heart is lost or unduly restricted, typically because one of the coronary arteries that supplies blood to the heart muscle is blocked. Such a blockage usually is the result of the buildup of plaque within the wall of the artery.
版权所有:YGEN在美国,大约每43秒就有一个人心脏病发作。在73.5万名每年经历一次的美国人中,大约15%的人会死亡。众所周知,心脏病发作是一个相当直接的事件。当心脏供血不足或过度受限时,心脏病发作,通常是因为向心肌供血的冠状动脉之一被阻塞。这种阻塞通常是动脉壁内斑块堆积的结果。
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引用次数: 0
LifeWorks@TURCK: A Best Practice Case Study on Workplace Well-being Program Design LifeWorks@TURCK:工作场所福利计划设计的最佳实践案例研究
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2015-01-01 DOI: 10.1249/fit.0000000000000120
N. Pronk, D. Lagerstrøm, J. Haws
Health and education are the most important factors related to human capital. They form the basis of an individual’s and a population’s productivity and associate population health as a key ingredient to poverty reduction, economic growth, and long-term economic development of a region or entire societies (9,15). As such, both factors are extremely important to business and industry because they prepare the future workforce and (a) optimize the performance of current employees atwork and in their home life, (b) positively influence people’s lives in general, and (c) reduce overdependency on medical care resources. It is therefore not surprising that during times of ever-increasing medical care expenditures, ofwhichmuch of the burden is borne by business and industry, employers look to workplace health protection and promotion to better manage their costs (17). Generally speaking, workplace health programs have proven effective for health improvement (6,10,14,16). Literature reviews also support the notion thatworkplace wellness programs can generate savings in medical care expenditures and reduce productivity loss (1). However, criticism of these claims has surfaced in recent years as several analyses indicate that the savings may not be as robust as reported (2,3). So, where does this inconsistent view of results come from? Why do conflicting results emerge from systematic reviews conducted by highly credible sources? Arguably, not all programs are designed to produce results. Whereas workplace wellness programs have become quite common with the vast majority of companies (77%) in the United States (3), the most recent National Worksite Health Promotion survey points out that only 6.9% of companies have programs that may be considered comprehensive in design (8). Program design matters in producing results, and programs designed according to best practice principles tend to produce better outcomes (5,12). Therefore, a differentiation should bemade betweenwell-designed programs and those that do not adhere to well-established known practices related to successful programs.
健康和教育是与人力资本有关的最重要因素。它们构成个人和人口生产力的基础,并将人口健康作为一个区域或整个社会减贫、经济增长和长期经济发展的关键因素(9,15)。因此,这两个因素对商业和工业都非常重要,因为它们为未来的劳动力做好准备,(a)优化当前员工在工作和家庭生活中的表现,(b)对人们的生活产生积极影响,(c)减少对医疗资源的过度依赖。因此,在医疗保健支出不断增加的时期(其中大部分负担由商业和工业承担),雇主希望通过工作场所的健康保护和促进来更好地管理其成本,这并不奇怪(17)。一般来说,工作场所的健康方案已被证明是有效的健康改善(6,10,14,16)。文献综述也支持这样一种观点,即工作场所健康计划可以节省医疗保健支出并减少生产力损失(1)。然而,近年来对这些说法的批评已经浮出水面,因为一些分析表明,节省可能不像报道的那样强劲(2,3)。那么,这种对结果不一致的看法是从哪里来的呢?为什么由高度可信的来源进行的系统评价会产生相互矛盾的结果?可以说,并不是所有的项目都是为了产生结果而设计的。尽管工作场所健康计划在美国绝大多数公司(77%)中已经变得相当普遍(3),但最近的全国工作场所健康促进调查指出,只有6.9%的公司拥有可以被认为是全面设计的计划(8)。计划设计对产生结果很重要,根据最佳实践原则设计的计划往往会产生更好的结果(5,12)。因此,应该区分设计良好的项目和那些没有遵循与成功项目相关的公认实践的项目。
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引用次数: 14
Current Perspectives About Scope of Practice 关于实践范围的当前观点
IF 1.5 4区 医学 Q3 SPORT SCIENCES Pub Date : 2015-01-01 DOI: 10.1249/fit.0000000000000108
W. F. Simpson
Current Perspectives About Scope of Practice Irecently attended the annual meeting for the Institute for Credentialing Excellence (ICE) in San Antonio. This is the organization that encompasses the National Commission for Certifying Agencies that accredits ACSM certifications. The issue of scope of practice was addressed at one session, and the following are some important points to take home in our profession. ACSM currently has a credentialing board, the Committee of Certification and Registry Boards, which has established the basics of who can be certified, how they are examined, and grants a certification based on an examination prepared from a Job Task Analysis. Often, the basis of forming a regulatory board in a state is based on the certification board’s standards. For some time now, there have been calls frommany certifiedmembers stating that we need licensure to stand our ground. However, we must be cautious as we pursue licensure because it truly is not the ‘‘holy grail’’ with respect to ensuring security for exercise professionals. There are a number of reality checks that must be considered with regard to licensure. First, licensure is granted at the state level; therefore, it would take an organized state effort for this process to begin. Second, as with many professions, the regulation of the profession would likely differ from state to state and there are never any guarantees that a bill will ever pass and be signed into law. Other factors to consider include the securing of two or three legislators who will sponsor the proposed bill for legislation and move the bill into a committee. The additional challenge to having a bill advance is countering the objections that other groups or professions may have against the proposed legislation. Opposing groups often hire lobbying firms who monitor legislative efforts and, when alerts come forth, register objections throughout the process. This can add many delays to getting a bill to the floor and voted on. In addition, there is a difference between the law itself, which is the legislation, and the regulations (parameters of practice), which follow if the bill is passed. The law becomes the practice act. However, a trend today is to see legislators writing language into the bill (sometimes during floor debate) that becomes regulatory in nature. This process can become problematic in the future. If, for example, the Job Task Analysis suggests changes in what a profession does, and those parts are actually written in the law, then a new law must be written and changed by most likely a new set of legislators. Therefore, it is best to have the law written with the regulatory issues determined by an established board that oversees the practice act. More desirable is to have the law written to establish a regulatory board. Then the board becomes the authority to write the regulatory statutes for the profession. Most license laws address: • Who is to be licensed? • Who is the authority to oversee
我最近参加了在圣安东尼奥举行的卓越资格认证协会(ICE)年会。这个组织包含了认可ACSM认证的国家认证机构委员会。在一次会议上讨论了实践范围的问题,以下是我们这个行业需要牢记的一些要点。ACSM目前有一个资格认证委员会,即认证和注册委员会委员会,该委员会确定了谁可以获得认证、如何进行认证的基本原则,并根据工作任务分析准备的考试授予认证。通常,在一个州组建监管委员会的基础是基于认证委员会的标准。一段时间以来,有许多认证会员打电话说我们需要执照来坚持我们的立场。然而,我们在追求执照时必须谨慎,因为它确实不是确保运动专业人员安全的“圣杯”。关于许可证,必须考虑许多现实检查。首先,执照是在州一级颁发的;因此,这一进程需要有组织的国家努力才能开始。其次,与许多职业一样,该行业的监管可能因州而异,而且从来没有任何保证法案会通过并签署成为法律。另外还需要考虑的是,确保2 ~ 3名议员提出立法提案,并将法案提交给委员会。推动法案的另一个挑战是应对其他团体或专业可能对拟议立法的反对意见。反对团体经常雇佣游说公司来监督立法工作,当警报出现时,在整个过程中登记反对意见。这可能会给议案的提交和投票增加许多延误。此外,法律本身(即立法)与法案通过后随之而来的法规(实践参数)之间也存在差异。法律成为实践行为。然而,今天的一个趋势是,立法者在法案中(有时是在辩论中)写一些具有监管性质的语言。这个过程在将来可能会成为问题。例如,如果《工作任务分析》建议改变某一职业所做的工作,而这些部分实际上已经写进了法律,那么很可能就必须由一组新的立法者来编写和修改一部新的法律。因此,最好是将法律与监管问题写在一起,由一个监督实践行为的既定委员会确定。更可取的做法是制定法律,建立一个监管委员会。然后,董事会成为为该行业撰写监管法规的权威机构。大多数许可证法律涉及:•谁将被许可?•谁是监管该行业的权威机构?•建立顾问委员会。•授予制定法规的权力。•授予颁发、暂停或撤销凭证的权限。国家法规可能并不总是意味着行医的“许可证”。有些州对某一职业有监管行为,可能会颁发执照,这是最具限制性的。然而,其他州可能会对同一职业颁发证书或注册。限制最少的法规是商标保护。北美助产士注册证书是认证的专业助产士。目前,只有28个州对这一职业进行监管,其中17个州实际上是执业“许可证”。在与运动相关的职业中也可以看到同样的差异。目前,所有50个州都对物理和职业治疗进行监管,49个州对运动训练进行监管,46个州对注册营养师进行监管。然而,无论是执照还是其他形式的监管,每个州对每个职业都有所不同。另一个需要考虑的问题是监管委员会的问题。一旦法律通过,就必须成立一个委员会来监督证书。这就像生活中的每件事一样,必须有资金支持。因此,ACSM认证
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引用次数: 0
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Acsms Health & Fitness Journal
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