• 文章类型: Journal Article
    中风后中枢疼痛(CPSP)的康复是一项复杂的临床挑战,重复经颅磁刺激(rTMS)已广泛应用于脑卒中后神经功能恢复的研究。然而,目前尚无可靠的循证医学支持rTMS治疗中风后中枢性疼痛的疗效.本综述旨在评估rTMS对中央性卒中后疼痛的影响。
    遵循PRISMA准则,我们在PubMed上进行了搜索,科克伦图书馆,Embase,WebofScience,CNKI,万方数据知识服务平台。我们搜索了随机对照试验(RCTs),研究rTMS在治疗中枢中风后疼痛中的应用,并根据纳入和排除标准进行筛查。提取所包括的RCT的特征。使用I2统计量评估试验的异质性。采用Stata17软件进行Meta分析。使用CochraneRoB2工具和Pedro量表评估偏倚风险和方法学质量。
    共有6项随机对照试验涉及288例患者符合我们的纳入标准。在我们的分析中,与安慰剂组相比,rTMS治疗CPSP患者更有效(SMD=-1.15,95%CI:-1.69,-0.61,P<0.001)。此外,亚组分析结果显示,rTMS与常规治疗相比,超过6个月的疼痛改善无统计学差异(SMD=-0.80,95%CI:-1.63,0.03,P=0.059).
    TMS可以减轻CPSP患者的疼痛并改善其运动功能,但是它对抑郁症的影响,焦虑,和MEP延迟不显著。
    https://www.crd.约克。AC.英国/普华永道/,CRD42024497530。
    UNASSIGNED: The rehabilitation of central post-stroke pain (CPSP) is a complex clinical challenge, and repetitive transcranial magnetic stimulation (rTMS) has been widely applied in the research of neurofunctional recovery following stroke. However, there is currently no reliable evidence-based medicine supporting the efficacy of rTMS in central post-stroke pain. This review aims to evaluate the effects of rTMS on central post-stroke pain.
    UNASSIGNED: Following the PRISMA guidelines, we conducted searches on PubMed, Cochrane Library, Embase, Web of Science, CNKI, and Wan Fang Data Knowledge Service Platform. We searched for randomized controlled trials (RCTs) investigating the use of rTMS in treating central post-stroke pain, and conducted screening based on inclusion and exclusion criteria. Characteristics of the included RCTs were extracted. The heterogeneity of the trials was assessed using the I2 statistic. Meta-analysis was performed using Stata 17 software. Bias risk and methodological quality were evaluated using the Cochrane RoB 2 tool and the Pedro scale.
    UNASSIGNED: A total of six randomized controlled trials involving 288 patients met our inclusion criteria. In our analysis, rTMS was more effective in treating patients with CPSP compared to the placebo group (SMD=-1.15, 95% CI: -1.69, -0.61, P < 0.001). Furthermore, results from subgroup analysis indicated no statistically significant difference in the improvement of pain for durations exceeding 6 months when comparing rTMS to conventional treatment (SMD=-0.80, 95% CI: -1.63, 0.03, P = 0.059).
    UNASSIGNED: TMS can alleviate pain in CPSP patients and improve their motor function, but its effects on depression, anxiety, and MEP-latency are not significant.
    UNASSIGNED: https://www.crd.york.ac.uk/prospero/, CRD42024497530.
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  • 文章类型: Journal Article
    加强语言治疗仍然是改善中风后失语症的最有效策略,然而,传统的面对面干预往往缺乏必要的治疗强度。近年来,基于移动应用的言语语言治疗逐渐出现,为失语症患者提供独立康复的新机会。这篇综述旨在评估基于移动应用的干预措施对卒中后失语症的影响。
    通过对五个数据库(PubMed,WebofScience,EMBASE,CINAHL,和Scopus),我们确定并纳入了调查基于移动应用程序的技术(如计算机,iPad,等。)用于治疗中风后失语症。
    这项研究包括15项研究调查,包括10项随机对照试验(RCT),四项自身对照研究和一项交叉实验设计研究。其中,8项研究证明了基于移动应用的治疗在增强卒中后失语症患者的整体语言功能方面的功效,三项研究强调了其提高沟通技巧的潜力,三项研究观察到其对自发言语表达的积极影响。此外,四项研究表明其在增强命名能力方面的有效性,两项研究强调了基于移动应用的干预措施对失语症患者生活质量的积极影响.六项研究指出,在随访期间保持了言语改善效果。
    本综述的结果表明,基于移动应用程序的干预措施在改善失语症患者的语音-语言功能方面具有潜力。然而,需要进一步的高质量研究来确定它们在不同领域的影响,并深入研究各种治疗方法的相对优势。
    https://www.crd.约克。AC.uk/prospro/display_record.php?RecordID=405248。
    UNASSIGNED: Enhancing speech-language therapy remains the most effective strategy for improving post-stroke aphasia, However, conventional face-to-face interventions often lack the necessary therapeutic intensity. In recent years, mobile application-based speech-language therapy has emerged progressively, offering new opportunities for independent rehabilitation among aphasic patients. This review aims to evaluate the impact of mobile application-based interventions on post-stroke aphasic.
    UNASSIGNED: By conducting a systematic search across five databases (PubMed, Web of Science, EMBASE, CINAHL, and Scopus), we identified and included studies that investigated the utilization of mobile application-based technologies (such as computers, iPads, etc.) for treating post-stroke aphasia.
    UNASSIGNED: This study included 15 research investigations, including 10 randomized controlled trials (RCTs), four self-controlled studies and one cross-over experimental design study. Among these, eight studies demonstrated the efficacy of mobile application-based therapy in enhancing overall language functionality for post-stroke aphasia patients, three studies highlighted its potential for improving communication skills, three studies observed its positive impact on spontaneous speech expression. Moreover, four studies indicated its effectiveness in enhancing naming abilities, two studies underscored the positive influence of mobile application-based interventions on the quality of life for individuals with aphasia. Six studies noted that speech improvement effects were maintained during the follow-up period.
    UNASSIGNED: The results of this review demonstrate the potential of mobile application-based interventions for improving speech-language function in individuals with aphasia. However, further high-quality research is needed to establish their effects across different domains and to delve into the comparative advantages of various treatment approaches.
    UNASSIGNED: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=405248.
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  • 文章类型: Journal Article
    阻力训练(RT)仍然是与年龄相关的肌肉质量下降的最有效治疗方法。然而,与年轻人相比,许多老年人对RT的反应肌肉肥大减弱。这可能归因于潜在的分子过程,这些过程因衰老而失调,并因不正确规定的每周RT体积而加剧。强度,和/或频率剂量。微小RNA(miRNA)是影响细胞内信号通路和蛋白质表达的关键表观遗传调节因子。是动态的,对运动刺激有反应,并且经常在疾病中失调。在这项研究中,我们使用非靶向miRNA-seq检测老年人骨骼肌和血清来源的外泌体中的miRNA(n=18,11M/7F,66±1y)接受3x/wkRT30周的患者[例如,高强度3x/wk(HHH,n=9)或交替的高-低-高强度(HLH,n=9)],在标准化的四周清洗后。在每个组织中,使用加权基因相关网络分析(WGCNA)基于成对相关性将miRNA聚集到模块中。测试模块与RT诱导的大腿瘦体重(TLM)变化(如通过DXA测量)的幅度的关联。虽然没有模块是训练剂量独有的,我们在骨骼肌中鉴定了与TLM增加相关的miRNA模块,而与运动剂量无关.利用miRNA-靶标相互作用,我们分析了重要模块中的关键miRNA在生物学通路中的潜在调控作用.研究结果指向潜在的miRNA,这些miRNA可能是提供信息的生物标志物,也可以被评估为潜在的治疗靶标,作为RT的佐剂,以最大化老年人的骨骼肌质量积累。
    Resistance training (RT) remains the most effective treatment for age-related declines in muscle mass. However, many older adults experience attenuated muscle hypertrophy in response to RT when compared to younger adults. This may be attributed to underlying molecular processes that are dysregulated by aging and exacerbated by improperly prescribed RT weekly volume, intensity, and/or frequency doses. MicroRNA (miRNA) are key epigenetic regulators that impact signaling pathways and protein expression within cells, are dynamic and responsive to exercise stimuli, and are often dysregulated in diseases. In this study, we used untargeted miRNA-seq to examine miRNA in skeletal muscle and serum-derived exosomes of older adults (n = 18, 11M/7F, 66±1y) who underwent 3x/wk RT for 30 weeks [e.g., high intensity 3x/wk (HHH, n = 9) or alternating high-low-high intensity (HLH, n = 9)], after a standardized four-week wash-in. Within each tissue, miRNAs were clustered into modules based on pairwise correlation using Weighted Gene Correlation Network Analysis (WGCNA). Modules were tested for association with the magnitude of RT-induced thigh lean mass (TLM) change (as measured by DXA). While no modules were unique to training dose, we identified miRNA modules in skeletal muscle associated with TLM gains irrespective of exercise dose. Using miRNA-target interactions, we analyzed key miRNAs in significant modules for their potential regulatory involvement in biological pathways. Findings point toward potential miRNAs that may be informative biomarkers and could also be evaluated as potential therapeutic targets as an adjuvant to RT in order to maximize skeletal muscle mass accrual in older adults.
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  • 文章类型: Journal Article
    在力量和力量运动员中,人们普遍认为营养补充策略通过将合成代谢/分解代谢概况转变为合成代谢来帮助恢复。营养量等因素,营养质量,和营养时机显着影响营养策略在优化对阻力运动的急性反应和对阻力训练的适应性反应方面的有效性(即,肌肉生长和力量表达)。具体来说,这篇综述的目的是解决碳水化合物(CHOs),蛋白质(PRO),和/或氨基酸(AA)补充策略,越来越多的证据表明营养信号和蛋白质合成的启动之间存在联系,肌糖原再合成,以及抗阻运动后肌原纤维蛋白降解的减弱。总的来说,当前的科学文献表明,利用CHO的营养补充策略,PRO,和/或AA代表了一种重要的方法,旨在增强力量和力量运动员的肌肉反应,主要是增加肌肉肥大和增强力量表达。似乎有一个关键的相互作用之间的阻力运动和营养细胞信号与营养定时的原则(即,练习前,during,和锻炼后)。提供了营养补充策略的建议,以促进力量和运动员的肌肉反应。
    It is a common belief amongst strength and power athletes that nutritional supplementation strategies aid recovery by shifting the anabolic/catabolic profile toward anabolism. Factors such as nutrient quantity, nutrient quality, and nutrient timing significantly impact upon the effectiveness of nutritional strategies in optimizing the acute responses to resistance exercise and the adaptive response to resistance training (i.e., muscle growth and strength expression). Specifically, the aim of this review is to address carbohydrates (CHOs), protein (PRO), and/or amino acids (AAs) supplementation strategies, as there is growing evidence suggesting a link between nutrient signaling and the initiation of protein synthesis, muscle glycogen resynthesis, and the attenuation of myofibrillar protein degradation following resistance exercise. Collectively, the current scientific literature indicates that nutritional supplementation strategies utilizing CHO, PRO, and/or AA represents an important approach aimed at enhancing muscular responses for strength and power athletes, primarily increased muscular hypertrophy and enhanced strength expression. There appears to be a critical interaction between resistance exercise and nutrient-cell signaling associated with the principle of nutrient timing (i.e., pre-exercise, during, and post-exercise). Recommendations for nutritional supplementation strategies to promote muscular responses for strength and athletes are provided.
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  • 文章类型: Journal Article
    先前的研究报道,与C等位基因携带者相比,腺苷A2a受体(ADORA2A)基因rs5751876多态性的TT基因型携带者对咖啡因摄入具有更好的体格生和抗炎反应。本研究的目的是双重的:(1)研究ADORA2Ars5751876多态性与急性咖啡因补充剂对抗阻运动(RE)的激素(生长激素和睾丸激素)反应的关系;(2)检查rs5751876多态性与轻度咖啡因消费者运动员的生长激素和睾丸激素的静息水平之间的关系。双盲,交叉,安慰剂对照研究包括30名抵抗训练的男性(年龄21.7±4.1),以评估咖啡因补充对血清生长激素(GH)和睾丸激素(TS)水平的影响,紧接着,和15分钟后RE。在进行阻力运动前一小时,受试者被随机给予每公斤体重6毫克咖啡因或安慰剂(麦芽糖糊精)。经过7天的清洗期,重复相同的方案.在94名精英运动员(31名女性,年龄21.4±2.8;63名男性,年龄22.9±3.8)。与C等位基因携带者相比,咖啡因的摄入导致TT基因型男性的GH和TS显着增加。此外,在运动员群体中,与C等位基因携带者相比,TT基因型携带者的睾酮(p=0.0125)和生长激素(p=0.0365)水平明显更高.总之,ADORA2A基因rs5751876多态性可能改变咖啡因摄入对运动激素反应的影响.
    Previous studies have reported that TT genotype carriers of the adenosine A2a receptor (ADORA2A) gene rs5751876 polymorphism have better ergogenic and anti-inflammatory responses to caffeine intake compared to C allele carriers. The aim of the present study was twofold: (1) to investigate the association of the ADORA2A rs5751876 polymorphism with acute caffeine supplementation on hormonal (growth hormone and testosterone) response to resistance exercise (RE); (2) to examine the relationship between the rs5751876 polymorphism and the resting levels of growth hormone and testosterone in athletes who are light caffeine consumers. A double-blind, crossover, placebo-controlled study involving 30 resistance-trained men (age 21.7 ± 4.1) was conducted to assess the impact of caffeine supplementation on serum growth hormone (GH) and testosterone (TS) levels before, immediately after, and 15 min post-RE. One hour before engaging in resistance exercise, subjects were randomly administered 6 mg of caffeine per kg of body mass or a placebo (maltodextrin). After a 7-day washout period, the same protocol was repeated. Resting testosterone and growth hormone levels were examined in the sera of 94 elite athletes (31 females, age 21.4 ± 2.8; 63 males, age 22.9 ± 3.8). Caffeine consumption led to significantly greater increases in GH and TS in men with the TT genotype compared to C allele carriers. Furthermore, in the group of athletes, carriers of the TT genotype had significantly higher testosterone (p = 0.0125) and growth hormone (p = 0.0365) levels compared to C allele carriers. In conclusion, the ADORA2A gene rs5751876 polymorphism may modify the effect of caffeine intake on the hormonal response to exercise.
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  • 文章类型: Journal Article
    背景:世界卫生组织报告说,背痛是全球疾病的主要原因。它是最常见的肌肉骨骼疾病,疼痛有限,肌肉紧张,和刚度,70-80%的人一生中经历过一次,女性患病率高于男性。本研究旨在探讨臀肌强化运动核心稳定训练(基于GSE的CST)对疼痛的影响,函数,恐惧回避模式,慢性背痛患者的生活质量。方法:本研究纳入34例非特异性慢性下腰痛患者。每个17个人被包括在基于GSE的CST和对照组中。基于GSE的CST组进行GSE和CST15分钟,一周三次,连续四周,对照组每天进行CST30分钟,一周三次,四个星期。采用数字疼痛评定量表对治疗前后的疼痛进行评价,罗兰-莫里斯残疾问卷用于评估功能,恐惧-回避信念问卷用于评估恐惧-回避模式,和生活质量测量使用短表格-36。结果:在这项研究中,疼痛,函数,两组恐惧回避模式均显著降低(P<0.05)。在评估生活质量的过程中,两组患者的身心因素均显著增加(p<0.05)。基于GSE的CST组和对照组之间的疼痛和生活质量存在显着差异(p<0.05)。结论:因此,基于GSE的CST可以作为有效干预以增强疼痛的基础,函数,恐惧回避模式,和生活质量,强调未来非特异性慢性背痛患者需要加强臀肌锻炼。
    Background: The World Health Organization reports that back pain is a major cause of disorder worldwide. It is the most common musculoskeletal disorder with limited pain, muscle tension, and stiffness, and 70-80% of all individuals experience it once in their lifetime, with higher prevalence in women than in men. This study aimed to investigate the effects of gluteal muscle strengthening exercise- based core stabilization training (GSE-based CST) on pain, function, fear-avoidance patterns, and quality of life in patients with chronic back pain. Methods: This study included 34 patients with non-specific chronic low back pain. Seventeen individuals each were included in GSE-based CST and control groups. The GSE-based CST group performed GSE and CST for 15 min, three times a week for four weeks, and the control group performed CST for 30 min a day, three times a week for four weeks. The numeric pain rating scale was used to evaluate pain before and after treatment, Roland-Morris disability questionnaire was used to evaluate function, fear-avoidance beliefs questionnaire was used to evaluate fear-avoidance patterns, and quality of life was measured using the short form-36. Results: In this study, pain, function, and fear-avoidance pattern decreased significantly in both groups (All p < 0.05). During the evaluation of quality of life, both groups showed significant increase in physical and mental factors (p < 0.05). There were significant differences in pain and quality of life (p < 0.05) between the GSE-based CST and control groups. Conclusions: Therefore, GSE-based CST can be used as a basis for effective intervention to enhance pain, function, fear-avoidance patterns, and quality of life, emphasizing the need for gluteal muscle strengthening exercises in patients with non-specific chronic back pain in the future.
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  • 文章类型: Journal Article
    近年来,在临床上对上肢运动学评估的采用有显著的增加.这一趋势与脑血管损害患病率的上升相一致,最常见的神经系统疾病之一.的确,越来越需要更客观的结局,以促进卒中后有针对性的康复干预.新兴技术,比如头戴式虚拟现实(HMD-VR)平台,通过整合不同的跟踪方法来回应这一需求。具体来说,HMD-VR技术实现了对身体姿势的全面跟踪,包括手部位置和手势,通过特定的跟踪器放置或通过集成的摄像机与嵌入在头盔内的复杂的计算机图形算法相结合来促进。这篇综述旨在介绍HMD-VR平台在脑卒中后患者上肢运动学分析中的最新应用。将它们与传统的跟踪系统进行比较。此外,我们解决与这些平台相关的潜在好处和挑战。这些系统可能是一个有希望的安全途径,成本效益高,以及神经康复领域内的便携式客观运动评估,虽然其他系统,包括机器人,应该考虑。
    In recent years, there has been a notable increase in the clinical adoption of instrumental upper limb kinematic assessment. This trend aligns with the rising prevalence of cerebrovascular impairments, one of the most prevalent neurological disorders. Indeed, there is a growing need for more objective outcomes to facilitate tailored rehabilitation interventions following stroke. Emerging technologies, like head-mounted virtual reality (HMD-VR) platforms, have responded to this demand by integrating diverse tracking methodologies. Specifically, HMD-VR technology enables the comprehensive tracking of body posture, encompassing hand position and gesture, facilitated either through specific tracker placements or via integrated cameras coupled with sophisticated computer graphics algorithms embedded within the helmet. This review aims to present the state-of-the-art applications of HMD-VR platforms for kinematic analysis of the upper limb in post-stroke patients, comparing them with conventional tracking systems. Additionally, we address the potential benefits and challenges associated with these platforms. These systems might represent a promising avenue for safe, cost-effective, and portable objective motor assessment within the field of neurorehabilitation, although other systems, including robots, should be taken into consideration.
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  • 文章类型: Journal Article
    衰老,尤其是女性,是复杂的,涉及多种因素,如生殖敏感性,认知和功能下降,和氧化还原系统的不平衡。这项研究旨在评估长期阻力训练作为一种非药物策略的有效性,以减轻识别记忆的损害。海马氧化还原状态,和更年期衰老雌性Wistar大鼠的行走。三十只17个月大的Wistar大鼠,在更年期,分为非训练(NT)和阻力训练(RT;每周爬楼梯3次,共4个月)组。在RT期之前(17个月)和之后(21个月),老鼠接受了下床试验,高架加迷宫(EPM),开放领域,和物体识别。对这些动物的海马进行生化和组织学分析。对结果的分析显示,在21个月时,与17个月时的测量值相比,NT组(21Mo/NT)的女性的长度减少(p=0.0458),过去的宽度增加(p<0.0479)。然而,经过4个月的RT,21月龄雌性大鼠(21Mo/RT组)步态成分发生变化,显示长度增加(p<0.0008)和步幅减小。关于记忆,物体识别测试表明21Mo/RT动物的潜在认知改善,在测试的所有三个阶段(总探索时间,p=0.0001;试验1,p=0.0003;试验2,p=0.0014)。与21Mo/NT组的动物相比,这种反应是值得注意的。表现为记忆能力下降(p<0.01)。数据显示与动物年龄有关的显著差异(p<0.01)。海马氧化还原状态标记物显示脂质氧化减少(p=0.028),过氧化氢酶(p=0.022),与NT组相比,RT组的超氧化物歧化酶(p=0.0067)。来自21Mo/RT组的海马细胞显示柠檬酸合成酶活性增加(p<0.05)和Nissl体染色(p<0.05)。这项研究的结果表明,在更年期期间进行的RT导致功能能力的显着改善,认知表现,和衰老雌性大鼠的神经可塑性。
    Aging, especially in female, is complex, involving various factors such as reproductive sensitivity, cognitive and functional decline, and an imbalance in the redox system. This study aims to assess the effectiveness of long-term resistance training as a non-pharmacological strategy to mitigate the impairment of recognition memory, hippocampal redox state, and ambulation in aging female Wistar rats during the periestropause period. Thirty Wistar rats aged 17 months, in periestropause, were distributed into non-trained (NT) and resistance training (RT; stair climbing 3 times per week for 4 months) groups. Before (17 months) and after (21 months) of the RT period, the rats underwent tests for ambulation, elevated plus maze (EPM), open field, and object recognition. Biochemical and histological analyses were conducted on the hippocampus of these animals. Analysis of the results revealed that at 21 months, females in the NT group (21Mo/NT) exhibited a decreased in length (p=0.0458) and an increased in past width (p<0.0479) compared to their measurements at 17 months. However, after 4 months of RT, the female rats aged 21 months (21Mo/RT group) experienced changes in gait components, showing an increase in length (p<0.0008) and a decrease in stride width. Regarding memory, the object recognition test indicated potential cognitive improvement in 21Mo/RT animals, with significant interaction between intervention and age across all three stages of the test (total exploration time, p=0.0001; Test 1, p=0.0003; Test 2, p=0.0014). This response was notable compared to animals in the 21Mo/NT group, which showed a decline in memory capacity (p<0.01). The data showed a significant difference in relation to the age of the animals (p<0.01). The hippocampal redox state markers showed reduced lipid oxidative (p=0.028), catalase (p=0.022), and superoxide dismutase (p=0.0067) in the RT group compared to the NT group. Hippocampal cells from the 21Mo/RT group showed increased citrate synthase enzyme activity (p<0.05) and Nissl body staining (p<0.05). The results of this study demonstrate that RT performed during the periestropause phase leads to significant improvements in functional abilities, cognitive performance, and neuroplasticity in aging female rats.
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  • 文章类型: Journal Article
    (1)背景:本文的目的是分析具有血流限制(BFR)的全下蹲(SQ)期间不同速度损失(VL)阈值对强度性能的急性影响,神经肌肉活动,代谢反应,和肌肉收缩特性。(2)方法:二十名经过力量训练的男子进行了四种方案,这些方案在该组内实现的VL方面有所不同(BFR0:0%VL;BFR10:10%VL;BFR20:20%VL;和BFR40:40%VL)。相对强度(60%1RM),套间恢复(2分钟),套数(3),和BFR水平(动脉闭塞压的50%)在方案之间匹配。肌腱造影(TMG),血乳酸,反运动跳跃(CMJ),最大自愿性等距SQ收缩(MVIC),在方案之前和之后,评估了在SQ中基线测量时达到1m·s-1所需的绝对载荷的性能。(3)结果:BFR40在运动过程中和运动后的EMG改变高于其他方案(p<0.05)。BFR40还在TMG衍生变量中引起更大的损伤,而BFR10减少了收缩时间。随着组中的VL增加,发现更高的血液乳酸浓度。BFR0和BFR10在运动后的MVIC中显示出中位数频率显着增加。(4)结论:高VL阈值(BFR40)加重了代谢和神经肌肉压力,并增加了肌肉力学特性的变化。低VL可以增强运动后神经肌肉活动和肌肉收缩特性。
    (1) Background: The aim of this paper is to analyze the acute effects of different velocity loss (VL) thresholds during a full squat (SQ) with blood-flow restriction (BFR) on strength performance, neuromuscular activity, metabolic response, and muscle contractile properties. (2) Methods: Twenty strength-trained men performed four protocols that differed in the VL achieved within the set (BFR0: 0% VL; BFR10: 10% VL; BFR20: 20% VL; and BFR40: 40% VL). The relative intensity (60% 1RM), recovery between sets (2 min), number of sets (3), and level of BFR (50% of arterial occlusion pressure) were matched between protocols. Tensiomyography (TMG), blood lactate, countermovement jump (CMJ), maximal voluntary isometric SQ contraction (MVIC), and performance with the absolute load required to achieve 1 m·s-1 at baseline measurements in SQ were assessed before and after the protocols. (3) Results: BFR40 resulted in higher EMG alterations during and after exercise than the other protocols (p < 0.05). BFR40 also induced greater impairments in TMG-derived variables and BFR10 decreased contraction time. Higher blood lactate concentrations were found as the VL within the set increased. BFR0 and BFR10 showed significantly increased median frequencies in post-exercise MVIC. (4) Conclusions: High VL thresholds (BFR40) accentuated metabolic and neuromuscular stress, and produced increased alterations in muscles\' mechanical properties. Low VL could potentiate post-exercise neuromuscular activity and muscle contractile properties.
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  • 文章类型: Journal Article
    这项系统评价的目的是评估与对照组相比,增强跳跃训练(PJT)对脑瘫(CP)青年的身体素质的影响(即标准治疗)。遵循了PRISMA2020指南。使用PICOS方法评估合格性。使用PubMed进行文献检索,WebofScience,和SCOPUS数据库。使用PEDro量表评估方法学研究质量。通过应用随机效应模型计算对冲效应大小(ES)对数据进行荟萃分析,以及95%置信区间(95%CI)。评估了异质性的影响(I2统计量),并使用等级方法确定证据的确定性。纳入8项方法学质量低到中等的随机对照研究,涉及9.5至14.6岁的男性(n=225)和女性(n=138)青年。PJT干预持续8至12周,每周2-4次。与对照组相比,PJT改善了肌肉力量(ES=0.66[中等],95%CI=0.36-0.96,p<0.001,I2=5.4%),静态(ES=0.69[中等],95%CI=0.33-1.04,p<0.001,I2=0.0%)和动态平衡(ES=0.85[中等],青年CP的95%CI=0.12-1.58,p=0.023,I2=81.6%)。因此,与对照组相比,PJT改善了CP青年的肌肉力量以及静态和动态平衡。然而,需要更多具有更大样本量的高质量随机对照试验,就PJT的使用和安全性提供更明确的建议,以改善身体素质指标.
    The aim of this systematic review was to assess the effects of plyometric-jump training (PJT) on the physical fitness of youth with cerebral palsy (CP) compared with controls (i.e., standard therapy). The PRISMA 2020 guidelines were followed. Eligibility was assessed using the PICOS approach. Literature searches were conducted using the PubMed, Web of Science, and SCOPUS databases. Methodological study quality was assessed using the PEDro scale. Data were meta-analyzed by applying a random-effects model to calculate Hedges\' g effect sizes (ES), along with 95% confidence intervals (95% CI). The impact of heterogeneity was assessed (I2 statistic), and the certainty of evidence was determined using the GRADE approach. Eight randomized-controlled studies with low-to-moderate methodological quality were included, involving male (n = 225) and female (n = 138) youth aged 9.5 to 14.6 years. PJT interventions lasted between 8 and 12 weeks with 2-4 weekly sessions. Compared with controls, PJT improved the muscle strength (ES = 0.66 [moderate], 95% CI = 0.36-0.96, p < 0.001, I2 = 5.4%), static (ES = 0.69 [moderate], 95% CI= 0.33-1.04, p < 0.001, I2 = 0.0%) and dynamic balance (ES = 0.85 [moderate], 95% CI = 0.12-1.58, p = 0.023, I2 = 81.6%) of youth with CP. Therefore, PJT improves muscle strength and static and dynamic balance in youth with CP compared with controls. However, more high-quality randomized-controlled trials with larger sample sizes are needed to provide a more definitive recommendation regarding the use and safety of PJT to improve measures of physical fitness.
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