Muscle Contraction

肌肉收缩
  • 文章类型: Journal Article
    目的:这项Delphi研究计划检查有关实用性的全球专家共识,准确度,和膀胱收缩指数(BCI)的分类,膀胱出口梗阻指数(BOOI),以及相关的证据。该手稿涉及成年女性,并遵循先前关于成年男性的手稿。
    方法:邀请了29名专家回答两轮调查,包括3个基础问题和12个调查问题。共识被定义为≥75%的协议。第一轮的序数量表(0-10)被归类为“强烈同意”,\"\"同意,\"\"中性,\"\"不同意,“和”强烈不同意“最后一轮。对治疗性研究进行了系统的证据搜索,这些研究检查了按女性指数分层的结果。
    结果:18位专家参与了调查,完成了100%。就12个问题中的2个问题达成了共识,两者都是负面的。专家们达成共识,认为BOOI既不准确也不有用,关于BCI也注意到了类似的负面趋势。然而,有支持,缺乏共识,用于膀胱收缩性和膀胱流出道梗阻的指数。系统搜索产生了八篇有关压力性尿失禁的出版物(n=6),盆腔器官脱垂(n=1),和内括约肌肉毒杆菌毒素(n=1)。
    结论:专家们对成年女性使用男性BCI和BOOI表示严重担忧,尽管人们普遍认识到需要收缩力和阻塞的数字指数。系统搜索显示,在这方面缺乏明显的证据。
    This Delphi study was planned to examine global expert consensus with regard to utility, accuracy, and categorization of the bladder contractility index (BCI), bladder outlet obstruction index (BOOI), and the related evidence. This manuscript deals with adult women and follows a previous manuscript reporting on adult men.
    Twenty-nine experts were invited to answer the two-round survey including three foundation questions and 12 survey questions. Consensus was defined as ≥75% agreement. The ordinal scale (0-10) in round 1 was classified into \"strongly agree,\" \"agree,\" \"neutral,\" \"disagree,\" and \"strongly disagree\" for the final round. A systematic search for evidence was conducted for therapeutic studies that have examined outcome stratified by the indices in women.
    Eighteen experts participated in the survey with 100% completion. Consensus was noted with regard to 2 of 12 questions, both in the negative. The experts had a consensus that BOOI was neither accurate nor useful and a similar negative trend was noted with regard to BCI. However, there was support, short of consensus, for the utility on an index of bladder contractility and bladder outflow obstruction. Systematic search yielded eight publications pertaining to stress urinary incontinence (n = 6), pelvic organ prolapse (n = 1), and intra-sphincteric botulinum toxin (n = 1).
    Experts had significant concerns with regard to the use of the male BCI and BOOI in adult women despite a general recognition of the need for numerical indices of contractility and obstruction. Systematic search showed a striking lack of evidence in this regard.
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  • 文章类型: Journal Article
    目的:这项Delphi研究计划检查有关实用性的全球专家共识,准确度,膀胱收缩性指数(BCI)和膀胱出口梗阻指数(BOOI)的分类及相关证据。
    方法:邀请了28位专家回答两轮调查,包括3个基础问题和15个调查问题。共识被定义为≥75%的协议。第一轮的序数量表(0-10)被归类为“强烈同意”,\"\"同意,\"\"中性,\"\"不同意,“和”强烈不同意“最后一轮。对治疗性研究进行了系统的证据搜索,这些研究检查了按男性指数分层的结果。
    结果:19位专家参加了调查,完成了100%。就19个问题中的6个问题达成了共识。专家强烈同意量化膀胱收缩性和膀胱流出道梗阻的实用性,而后者几乎一致。人们一致认为BCI和BOOI是准确的,BCI在临床上是有用的,并将严重的膀胱流出道梗阻定义为BOOI>80。系统搜索产生69篇出版物(BCI45;BOOI50)。大多数研究将指数作为连续变量或标准截止值(BCI100,150;BOOI20,40)进行了检查。
    结论:专家对需要量化膀胱收缩力和膀胱流出道梗阻的指标以及BCI和BOOI指标的准确性和实用性达成了普遍共识。很少有研究检查现有截止值的判别力或探索新的截止值。这是泌尿外科领域的一个非凡的知识差距。
    This Delphi study was planned to examine global expert consensus with regard to utility, accuracy, and categorization of Bladder Contractility Index (BCI) and Bladder Outlet Obstruction Index (BOOI) and the related evidence.
    Twenty-eight experts were invited to answer the two-round survey including three foundation questions and 15 survey questions. Consensus was defined as ≥75% agreement. The ordinal scale (0-10) in round 1 was classified into \"strongly agree,\" \"agree,\" \"neutral,\" \"disagree,\" and \"strongly disagree\" for the final round. A systematic search for evidence was conducted for therapeutic studies that have examined outcome stratified by the indices in men.
    Nineteen experts participated in the survey with 100% completion. Consensus was noted with regard to 6 of 19 questions. Experts strongly agreed with utility of quantifying bladder contractility and bladder outflow obstruction with near unanimity regarding the latter. There was consensus that BCI and BOOI were accurate, that BCI was clinically useful, and for defining severe bladder outflow obstruction as BOOI > 80. Systematic search yielded 69 publications (BCI 45; BOOI 50). Most studies examined the indices as a continuous variable or by standard cutoffs (BCI 100, 150; BOOI 20, 40).
    There is general agreement among experts on need for indices to quantify bladder contractility and bladder outflow obstruction as well as with regard to accuracy and utility of BCI and BOOI indices. Few studies have examined the discriminant power of existing cutoffs or explored new ones. This is an extraordinary knowledge gap in the field of urology.
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  • 文章类型: Systematic Review
    肌腱造影是一种非侵入性方法,可根据刺激的放射状位移评估骨骼肌收缩特性。许多研究已经使用位移速率(Vc)作为肌肉收缩速度的间接测量。然而,没有标准化的方法来测量位移和确定Vc。这篇综述旨在概述确定Vc和测量协议的概念,以促进标准化方法的发展。本审查遵循了系统审查的首选报告项目和范围审查的荟萃分析扩展(PRISMA-ScR)指南。在五个电子数据库和其他来源中进行了系统搜索。纳入的62项研究报告了10种不同的概念来确定Vc,我们总结为三组。确定概念主要在考虑的收缩阶段的时间间隔和用于定义这些间隔的标准方面有所不同。关于设备和评估者的基本信息,测量设置,电刺激程序,和数据分析经常没有报告。总之,关于如何确定Vc没有共识。测量方案的不完整报告阻碍了研究比较,这阻碍了标准化方法的发展。因此,我们提出了报告测量协议的新指南,涵盖1)设备和评分器,2)测量设置,包括主题的定位,传感器和电极,3)电刺激,包括初始刺激幅度,增量,和端点,4)数据分析,包括选择标准和分析信号的数量以及派生参数的定义。
    Tensiomyography is a non-invasive method to assess skeletal muscle contractile properties from the stimulated radial displacement. Many studies have used the rate of displacement (Vc) as an indirect measure of muscle contraction velocity. However, no standardised methodical approach exists to measure displacement and determine Vc. This review aimed to provide an overview of concepts to determine Vc and measurement protocols to foster the development of a standardised methodical approach. This review followed the Preferred Reporting Items for Systematic Reviews and meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guideline. Systematic searches were performed within five electronic databases and additional sources. The included 62 studies reported 10 different concepts to determine Vc, which we summarised in three groups. The determination concepts differed mainly regarding time intervals during the contraction phase considered and criteria used to define these intervals. Essential information on the equipment and raters, measurement setup, electrical stimulation procedure, and data analysis were frequently not reported. In conclusion, no consensus on how to determine Vc existed. Incomplete reporting of measurement protocols hindered study comparison, which obstructs developing a standardised approach. Therefore, we propose a new guideline for reporting measurement protocols, which covers the 1) equipment and rater, 2) measurement setup, including positioning of the subject, sensor and electrodes, 3) electrical stimulation, including initial stimulation amplitude, increment, and endpoint, and 4) data analysis, including selection criteria and number of analysed signals and a definition of derived parameters.
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  • 文章类型: Comparative Study
    The role of dietary protein intake on muscle mass and physical function in older adults is important for the prevention of age-related physical limitations. The aim of the present study was to elucidate links between dietary protein intake and muscle mass and physical function in older women meeting current guidelines of objectively assessed physical activity. In 106 women (65 to 70 years old), protein intake was assessed using a 6-day food record and participants were classified into high and low protein intake groups using two Recommended Dietary Allowance (RDA) thresholds (0.8 g·kg-1 bodyweight (BW) and 1.1 g·kg-1 BW). Body composition, aerobic fitness, and quadriceps strength were determined using standardized procedures, and self-reported physical function was assessed using the SF-12 Health Survey. Physical activity was assessed by accelerometry and self-report. Women below the 0.8 g·kg-1 BW threshold had a lower muscle mass (p < 0.05) with no differences in physical function variables. When based on the higher RDA threshold (1.1 g·kg-1 BW), in addition to significant differences in muscle mass, women below the higher threshold had a significantly (p < 0.05) higher likelihood of having physical limitations. In conclusion, the present study supports the RDA threshold of 0.8 g·kg-1 BW of proteins to prevent the loss of muscle mass and emphasizes the importance of the higher RDA threshold of at least 1.1 g·kg-1 BW to infer additional benefits on constructs of physical function. Our study also supports the role of protein intake for healthy ageing, even in older adults meeting guidelines for physical activity.
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  • 文章类型: Journal Article
    BACKGROUND: In this series of patients the cutaneous insertion and strength of voluntary contraction of the muscles in the upper third of the face were used as guidelines for botulinum toxin application named \"BTA Codes.\"
    METHODS: Anatomical dissection of fresh cadavers identified the shape and cutaneous insertions of the muscles in the upper third of the face. Patient voluntary contraction of the muscles in the upper third of the face created different patterns of skin lines classified by the 4-grade Facial Wrinkle Scale. For botulinum toxin application injections points followed the muscle cutaneous insertion and dose the 4-grade Facial Wrinkle Scale.
    RESULTS: Injection points ranged from 3 to 23 points per patient, average of 9.4 points. Dose per point varied from 2.5 to 7.5 U, ranging from 12.5 to 72.5 U per patient, average of 33.82 U. Skin lines resulting from the voluntary contraction of the muscle prior to toxin application were stated as baseline 1. The absence of skin lines and muscle activity on day fifteen after toxin application defined baseline 2. Skin lines resulting from the recovered voluntary contraction of the muscle after toxin application like those of baseline 1 established baseline 3. The botulinum toxin effect was the time elapsed between baselines 2 and 3, ranging from 171 to 204 days, average of 183.72 days, greater than the 3 or 4 months reported in the literature.
    CONCLUSIONS: \"BTA Codes\" is a set of rules to apply botulinum toxin supported by muscle anatomy and degree of voluntary contraction to enhance the duration of its effect.
    UNASSIGNED: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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  • 文章类型: English Abstract
    OBJECTIVE: Provide guidelines for clinical practice concerning postpartum rehabilitation.
    METHODS: Systematically review of the literature concerning postpartum pelvic floor muscle training and abdominal rehabilitation.
    RESULTS: Pelvic-floor rehabilitation using pelvic floor muscle contraction exercises is recommended to treat persistent urinary incontinence at 3 months postpartum (grade A), regardless of the type of incontinence. At least 3 guided sessions with a therapist is recommended, associated with pelvic floor muscle exercises at home. This postpartum rehabilitation improves short-term urinary incontinence (1 year) but not long-term (6-12 years). Early pelvic-floor rehabilitation (within 2 months following childbirth) is not recommended (grade C). Postpartum pelvic-floor rehabilitation in women presenting with anal incontinence, is associated with a lower prevalence of anal incontinence symptoms in short-term (1 year) (EL3) but not long-term (6 and 12) (EL3). Postpartum pelvic-floor rehabilitation is recommended to treat anal incontinence (grade C) but results are not maintained in medium or long term. No randomized trials have evaluated the pelvic-floor rehabilitation in asymptomatic women in order to prevent urinary or anal incontinence in medium or long term. It is therefore not recommended (expert consensus). Rehabilitation supervised by a therapist (physiotherapist or midwife) is not associated with better results than simple advice for voluntary contraction of the pelvic floor muscles to prevent/correct, in short term (6 months), a persistent prolapse 6 weeks postpartum (EL2), whether or not with a levator ani avulsion (EL3). Postpartum pelvic-floor rehabilitation is not associated with a decrease in the prevalence of dyspareunia at 1-year follow-up (EL3). Postpartum pelvic-floor rehabilitation guided by a therapist is therefore not recommended to treat or prevent prolapse (grade C) or dyspareunia (grade C). No randomized trials have evaluated the effect of pelvic floor muscle training after an episode of postpartum urinary retention or bladder outlet obstruction symptoms, or for the primary prevention of anal incontinence following third-degree anal sphincter tear or in patients presenting with anal incontinence after third-degree anal sphincter tear. The electrostimulation devices used alone were not assessed in this postpartum context (regardless of symptoms); therefore, isolated pelvic floor electrostimulation is not recommended (expert consensus).
    CONCLUSIONS: Pelvic floor muscle therapy is recommended for persistent postpartum urinary (grade A) or anal (grade C) incontinence (3 months after delivery).
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  • 文章类型: Journal Article
    We briefly summarized several new stimulation techniques. There are many new methods of human brain stimulation, including modification of already known methods and brand-new methods. In this article, we focused on theta burst stimulation (TBS), repetitive monophasic pulse stimulation, paired- and quadri-pulse stimulation, transcranial alternating current stimulation (tACS), paired associative stimulation, controllable pulse shape TMS (cTMS), and deep-brain TMS. For every method, we summarized the state of the art and discussed issues that remain to be addressed.
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  • 文章类型: English Abstract
    盆底康复被规定为女性压力性尿失禁的一线治疗,特别是在没有一级子宫脱垂的尿失禁病例中,会阴检测结果质量差或会阴倒立命令。15个疗程的处方应足以评估改善尿失禁的可能性。如果患者感觉她正在进步但没有达到足够的结果,则可以继续会话。尽管进行了适当的康复,但没有进展,是否继续物理治疗的问题出现了。目前,治疗师确定会话的数量。他们更容易知道是否应该进行会议,并应将报告传达给处方医生。这种类型的康复属于物理治疗师的领域。助产士可以负责产后康复。另一方面,患者在结果及其维护中的作用的重要性是众所周知的。有时在初始会话之后的一些时间的一些会话可以用于验证采集并激励患者对这种康复的个人贡献。物理治疗师的工作不能用Keat型家庭电刺激代替。物理治疗师在这种情况的整体管理中起着重要作用。目前,在没有证明疗效的情况下,不建议自我电刺激。在急迫性尿失禁中,康复方法将与行为疗法和膀胱生物反馈工作的抗胆药处方同时使用。此外,低频电刺激可以在会议期间进行。从10-12个会议开始就足够了。在所有情况下,康复应采取多学科方法,并纳入医疗和/或手术管理计划。
    Pelvic floor rehabilitation is prescribed as first-line treatment for women with stress urinary incontinence, particularly in cases of urinary incontinence with no first-degree uterine prolapse, with poor-quality perineal testing results or inverted perineal command. Prescription of 15 sessions should suffice to evaluate the possibilities of improving the incontinence. The sessions can be continued if the patient feels she is progressing but has not reached sufficient results. With no progression despite properly conducted rehabilitation, the question of whether to continue the physical therapy arises. Currently, therapists determine the number of sessions. They are better apt to know whether sessions should be pursued and should relay a report to the prescribing physician. This type of rehabilitation is within the domain of physical therapists. Midwives can be responsible for postpartum rehabilitation. On the other hand, the importance of the patient\'s role in the results and their maintenance is well known. Occasionally a few sessions some time after the initial sessions can serve to verify the acquisitions and motivate the patient in her personal contribution to this rehabilitation. The work of the physical therapist cannot be substituted with Keat-type home electrostimulation. The physical therapist plays an important role in the overall management of this condition. Currently, in absence of demonstrated efficacy, self-administration of electrostimulation is not recommended. In urge incontinence, the rehabilitation approach will be used concomitantly with prescription of anticholergics with behavioral therapy and bladder biofeedback work. In addition, low-frequency electrostimulation can be done during the session. Starting with 10-12 sessions is sufficient. In all cases, rehabilitation should take a multidisciplinary approach and be integrated into a medical and/or surgical management plan.
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  • 文章类型: Comment
    暂无摘要。
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  • 文章类型: Consensus Development Conference
    OBJECTIVE: Exercise is an effective and commonly prescribed intervention for lower limb osteoarthritis (OA). Many unanswered questions remain, however, concerning the practical delivery of exercise therapy. We have produced evidence-based recommendations to guide health-care practitioners.
    METHODS: A multidisciplinary guideline development group was formed from representatives of professional bodies to which OA is of relevance and other interested parties. Each participant contributed up to 10 propositions describing key clinical points regarding exercise therapy for OA of the hip or knee. Ten final recommendations were agreed by the Delphi technique. The research evidence for each was determined. A literature search was undertaken in the Medline, PubMed, EMBASE, PEDro, CINAHL and Cochrane databases. The methodological quality of each retrieved publication was assessed. Outcome data were abstracted and effect sizes calculated. The evidence for each recommendation was assessed and expert consensus highlighted by the allocation of two categories: (1) strength of evidence and (2) strength of recommendation.
    RESULTS: The first round of the Delphi process produced 123 propositions. This was reduced to 10 after four rounds. These related to aerobic and strengthening exercise, group versus home exercise, adherence, contraindications and predictors of response. The literature search identified 910 articles; 57 intervention trials relating to knee OA, 9 to hip OA and 73 to adherence. The evidence to support each proposition is presented.
    CONCLUSIONS: These are the first recommendations for exercise in hip and knee OA to clearly differentiate research evidence and expert opinion. Gaps in the literature are identified and issues requiring further study highlighted.
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