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Towards precision 24-hour movement behavior recommendations-The next new paradigm? 实现精准的 24 小时运动行为建议--下一个新范例?
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-11-01 Epub Date: 2024-05-09 DOI: 10.1016/j.jshs.2024.05.003
Mark S Tremblay, Markus J Duncan, Nicholas Kuzik, Diego Augusto Santos Silva, Valerie Carson
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引用次数: 0
Ready, set, go: Medical preparations for the Paris 2024 Paralympic Games. 准备、就绪、开始--2024 年巴黎残奥会医疗筹备工作。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-11-01 Epub Date: 2024-05-20 DOI: 10.1016/j.jshs.2024.05.007
Carolette Snyders, Wayne Derman, Martin Schwellnus
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引用次数: 0
Exploring the associations between skeletal muscle echogenicity and physical function in aging adults: A systematic review with meta-analyses. 探索老年人骨骼肌回声与身体功能之间的关联:系统回顾与荟萃分析。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-11-01 Epub Date: 2024-05-15 DOI: 10.1016/j.jshs.2024.05.005
Dustin J Oranchuk, Stephan G Bodkin, Katie L Boncella, Michael O Harris-Love

Background: Assessment and quantification of skeletal muscle within the aging population is vital for diagnosis, treatment, and injury/disease prevention. The clinical availability of assessing muscle quality through diagnostic ultrasound presents an opportunity to be utilized as a screening tool for function-limiting diseases. However, relationships between muscle echogenicity and clinical functional assessments require authoritative analysis. Thus, we aimed to (a) synthesize the literature to assess the relationships between skeletal muscle echogenicity and physical function in older adults (≥60 years), (b) perform pooled analyses of relationships between skeletal muscle echogenicity and physical function, and (c) perform sub-analyses to determine between-muscle relationships.

Methods: CINAHL, Embase, MEDLINE, PubMed, and Web of Science databases were systematically searched to identify articles relating skeletal muscle echogenicity to physical function in older adults. Risk-of-bias assessments were conducted along with funnel plot examination. Meta-analyses with and without sub-analyses for individual muscles were performed utilizing Fisher's Z transformation for the most common measures of physical function. Fisher's Z was back-transformed to Pearson's r for interpretation.

Results: Fifty-one articles (n = 5095, female = ∼2759, male = ∼2301, 72.5 ± 5.8 years, mean ± SD (1 study did not provide sex descriptors)) were extracted for review, with previously unpublished data obtained from the authors of 13 studies. The rectus femoris (n = 34) and isometric knee extension strength (n = 22) were the most accessed muscle and physical qualities, respectively. The relationship between quadriceps echogenicity and knee extensor strength was moderate (n = 2924, r = -0.36 (95% confidence interval: -0.38 to -0.32), p < 0.001), with all other meta-analyses (grip strength, walking speed, sit-to-stand, timed up-and-go) resulting in slightly weaker correlations (r:  -0.34 to -0.23, all p < 0.001). Sub-analyses determined minimal differences in predictive ability between muscle groups, although combining muscles (e.g., rectus femoris + vastus lateralis) often resulted in stronger correlations with maximal strength.

Conclusion: While correlations are modest, the affordable, portable, and noninvasive ultrasonic assessment of muscle quality is a consistent predictor of physical function in older adults. Minimal between-muscle differences suggest that echogenicity estimates of muscle quality are systemic. Therefore, practitioners may be able to scan a single muscle to estimate full-body skeletal muscle quality/composition, while researchers should consider combining multiple muscles to strengthen the model.

背景:评估和量化老龄人口的骨骼肌对于诊断、治疗和预防损伤/疾病至关重要。临床上可通过超声诊断评估肌肉质量,这为利用超声诊断作为功能限制性疾病的筛查工具提供了机会。然而,肌肉回声与临床功能评估之间的关系需要权威的分析。因此,我们的目标是:(a)综合文献以评估老年人(≥60 岁)骨骼肌回声与身体功能之间的关系;(b)对骨骼肌回声与身体功能之间的关系进行汇总分析;(c)进行子分析以确定肌肉之间的关系:对 CINAHL、Embase、MEDLINE、PubMed 和 Web of Science 数据库进行了系统检索,以确定与老年人骨骼肌回声性和身体功能有关的文章。在进行漏斗图检查的同时,还进行了偏倚风险评估。利用费舍尔 Z 变换对最常见的身体功能测量方法进行了元分析,并对单块肌肉进行了子分析或未进行子分析。费舍尔Z转换为皮尔逊r进行解释:提取了 51 篇文章(n = 5095,女性 = ∼2759,男性 = ∼2301,72.5 ± 5.8 岁,平均 ± SD(1 项研究未提供性别描述))进行审查,并从 13 项研究的作者处获得了之前未发表的数据。股直肌(34 人)和等长膝关节伸展力量(22 人)分别是获得最多的肌肉和身体素质。股四头肌回声性与膝关节伸展力量之间的关系为中等(n = 2924,r = -0.36 (95%CI: -0.38 to -0.32),p < 0.001),所有其他荟萃分析(握力、行走速度、坐立、定时起立)的相关性稍弱(r = -0.34 to -0.23,所有 p < 0.001)。子分析表明,不同肌群之间的预测能力差异极小,但组合肌肉(如股直肌+股外侧肌)往往与最大力量的相关性更强:虽然相关性不大,但经济、便携、无创的超声波肌肉质量评估是预测老年人身体功能的一致指标。肌肉之间的差异很小,这表明肌肉质量的回声估计值是系统性的。因此,从业人员可以通过扫描单块肌肉来估计全身骨骼肌质量/构成,而研究人员则应考虑结合多块肌肉来加强模型。
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引用次数: 0
Promoting public health through the 2024 Compendium of Physical Activities: Strategies for adults, older adults, and wheelchair users. 通过《2024 年体育活动汇编》促进公众健康:针对成年人、老年人和轮椅使用者的策略。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-11-01 Epub Date: 2024-05-31 DOI: 10.1016/j.jshs.2024.05.013
Stephen D Herrmann, Scott A Conger, Erik A Willis, Barbara E Ainsworth
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引用次数: 0
A marathon, not a sprint: Increasing population physical activity as a legacy of sports mega-events. 马拉松,而非短跑:增加人口体育活动是大型体育赛事的遗产。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-11-01 Epub Date: 2024-06-19 DOI: 10.1016/j.jshs.2024.06.002
Fiona C Bull, Paul J Simpson
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引用次数: 0
Muscle power: A simple concept causing much confusion. 肌肉力量:一个简单的概念却引起了许多困惑。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-10-28 DOI: 10.1016/j.jshs.2024.101005
Azim Jinha, Walter Herzog
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引用次数: 0
Massive sarcomerogenesis in human skeletal muscle following long-term eccentric exercise intervention. 长期偏心运动干预后人体骨骼肌中的大量肉瘤生成。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-10-25 DOI: 10.1016/j.jshs.2024.101003
Heiliane de Brito Fontana, Walter Herzog
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引用次数: 0
Commentary on "Multiscale hamstring muscle adaptations following 9 weeks of eccentric training". 关于 "9 周偏心训练后腿筋肌肉的多尺度适应性 "的评论。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-10-25 DOI: 10.1016/j.jshs.2024.101002
Markus Tilp
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引用次数: 0
Comment on "Development of an accelerometer age- and sex-specific approach based on population-standardized values for physical activity surveillance: A proof of concept". 关于 "基于人口标准化值开发针对不同年龄和性别的加速度计方法,用于体力活动监测:概念验证 "发表评论。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-10-25 DOI: 10.1016/j.jshs.2024.101004
Alex V Rowlands, Richard P Troiano
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引用次数: 0
Residual force enhancement decreases when scaling from the single muscle fiber to joint level in humans. 当人类从单个肌肉纤维扩展到关节水平时,残余力增强会减弱。
IF 9.7 1区 医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-10-23 DOI: 10.1016/j.jshs.2024.101000
Avery Hinks, Kaitlyn B E Jacob, Makenna A Patterson, Benjamin E Dalton, Geoffrey A Power

Background: Residual force enhancement (rFE), defined as increased isometric force following active lengthening compared to a fixed-end isometric contraction at the same muscle length and level of activation, is present across all scales of muscle. While rFE is always present at the cellular level, often rFE "non-responders" are observed during joint-level voluntary contractions.

Methods: We compared rFE between the joint level and single fiber level (vastus lateralis biopsies) in 16 young males. In vivo voluntary knee-extensor rFE was measured by comparing steady-state isometric torque between a stretch-hold (maximal activation at 150°, stretch to 70°, hold) and a fixed-end isometric contraction, with ultrasonographic recording of vastus lateralis fascicle length (FL). Fixed-end contractions were performed at 67.5°, 70.0°, 72.5°, and 75.0°; the joint angle that most closely matched FL of the stretch-hold contraction's isometric steady-state was used to calculate rFE. The starting and ending FLs of the stretch-hold contraction were expressed as % optimal FL, determined via torque-angle relationship.

Results: In single fiber experiments, the starting and ending fiber lengths were matched relative to optimal length determined from in vivo testing, yielding an average sarcomere excursion of ∼2.2-3.4µm. There was a greater magnitude of rFE at the single fiber (∼20%) than joint level (∼5%) (p = 0.004), with "non-responders" only observed at the joint level.

Conclusion: By comparing rFE across scales within the same participants, we show the development of the rFE non-responder phenomenon is upstream of rFE's cellular mechanisms, with rFE only lost rather than gained when scaling from single fibers to the joint level.

背景:残余力增强(rFE)是指在肌肉长度和激活水平相同的情况下,与固定端的等长收缩相比,主动拉长后等长力的增加。虽然 rFE 始终存在于细胞水平,但在关节水平的自主收缩过程中往往会观察到 rFE "无反应者":方法:我们对 16 名年轻男性的关节水平和单纤维水平(侧阔肌活检组织)的 rFE 进行了比较。通过比较拉伸-保持(150°时最大激活,拉伸至 70°,保持)和固定端等长收缩之间的稳态等长扭力,并通过超声波记录阔筋膜筋束长度(FL)来测量体内膝关节自主伸展的 rFE。固定端收缩的角度分别为 67.5°、70.0°、72.5° 和 75.0°;在计算 rFE 时,采用了与拉伸-保持收缩的等长稳态 FL 最接近的关节角度。拉伸-保持收缩的起始和终止 FL 用最佳 FL 的百分比表示,通过扭矩-角度关系确定:结果:在单纤维实验中,起始和终止纤维长度与体内测试确定的最佳长度相匹配,产生的平均肌节偏移量为 2.2-3.4 微米。单根纤维的 rFE 值(∼20%)大于关节水平的 rFE 值(∼5%)(p = 0.004),仅在关节水平观察到 "无反应者":通过比较同一参与者不同尺度的 rFE,我们发现 rFE 非反应者现象的形成是在 rFE 细胞机制的上游,当从单纤维尺度扩展到关节尺度时,rFE 只会损失而不会增加。
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引用次数: 0
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Journal of Sport and Health Science
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