二维全景超声评估的肌肉结构测量的年龄和肌肉特异性可靠性。
Age- and muscle-specific reliability of muscle architecture measurements assessed by two-dimensional panoramic ultrasound.
机构信息
Department of Human Movement Sciences, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Université Grenoble Alpes, AGEIS, Grenoble, France.
出版信息
Biomed Eng Online. 2022 Feb 13;21(1):15. doi: 10.1186/s12938-021-00967-4.
BACKGROUND
Age-related changes in muscle properties affect daily functioning, therefore a reliable assessment of such properties is required. We examined the effects of age on reliability, muscle quality and interrelation among muscle architecture (MA) parameters of the gastrocnemius medialis (GM), tibialis anterior (TA), and vastus lateralis (VL) muscles.
METHODS
Three raters scored ultrasound (US) scans of 12 healthy younger and older adults, on fascicle length (FL), pennation angle (PA) and muscle thickness (MT). Intra- and inter-rater reliability of MA measures in rest and contraction was assessed by intraclass correlation coefficients (ICC) and standard error of measurements (SEM, SEM%). The relationship between MA parameters was examined using Pearson correlation coefficients. Muscle quality (MQ) was examined using mean pixel intensity.
RESULTS
Reliability was moderate to excellent for TA in both groups (ICCs: 0.64-0.99, SEM% = 1.6-14.8%), and for VL in the younger group (ICCs: 0.67-0.98, SEM% = 2.0-18.3%). VL reliability was poor to excellent in older adults (ICCs: 0.22-0.99, SEM% = 2.7-36.0%). For GM, ICCs were good to excellent (ICCs: 0.76-0.99) in both groups, but GM SEM% were higher in older adults (SEM% = 1.5-10.7%, SEM% = 1.6-28.1%). Muscle quality was on average 19.0% lower in older vs. younger adults. In both groups, moderate to strong correlations were found for VL FL and MT (r ≥ 0.54), and TA PA and MT (r ≥ 0.72), while TA FL correlated with MT (r ≥ 0.67) in younger adults only.
CONCLUSIONS
In conclusion, age- and muscle-specificities were present in the relationships between MT and PA, and MT and FL at rest. Furthermore, the reliability of MA parameters assessed with 2D panoramic US is acceptable. However, the level of reliability varies with age, muscle and MA measure. In older adults notably, the lowest reliability was observed in the VL muscle. Among the MA parameters, MT appears to be the simplest and most easily reproducible parameter in all muscles and age groups.
背景
肌肉特性随年龄增长而发生变化，这会影响日常活动，因此需要对这些特性进行可靠的评估。我们研究了年龄对跟腱内侧肌（GM）、胫骨前肌（TA）和股外侧肌（VL）的肌构筑参数（MA）的可靠性、肌肉质量以及相关性的影响。
方法
3 位评估者对 12 名健康的年轻和老年成年人的超声（US）扫描结果进行评分，评估内容包括肌纤维长度（FL）、羽状角（PA）和肌肉厚度（MT）。使用组内相关系数（ICC）和测量标准误差（SEM，SEM%）评估 MA 指标在休息和收缩状态下的内部和内部评估者的可靠性。使用皮尔逊相关系数来检验 MA 参数之间的关系。使用平均像素强度来检查肌肉质量（MQ）。
结果
在两组中，TA 的可靠性均为中等至优秀（ICC：0.64-0.99，SEM%=1.6-14.8%），在年轻组中 VL 的可靠性也为中等至优秀（ICC：0.67-0.98，SEM%=2.0-18.3%）。在老年组中，VL 的可靠性为差到优秀（ICC：0.22-0.99，SEM%=2.7-36.0%）。GM 的 ICC 在两组中均为良好至优秀（ICC：0.76-0.99），但老年组 GM 的 SEM%较高（SEM%=1.5-10.7%，SEM%=1.6-28.1%）。与年轻成年人相比，老年成年人的肌肉质量平均低 19.0%。在两组中，VL 的 FL 和 MT（r≥0.54）以及 TA 的 PA 和 MT（r≥0.72）之间存在中度到强相关性，而仅在年轻成年人中，TA 的 FL 与 MT（r≥0.67）相关。
结论
综上所述，在休息时，MT 与 PA 和 MT 与 FL 之间的关系存在年龄和肌肉特异性。此外，使用 2D 全景 US 评估 MA 参数的可靠性是可以接受的。然而，可靠性水平随年龄、肌肉和 MA 测量值而变化。在老年成年人中，VL 肌肉的可靠性最低。在所有肌肉和年龄组中，MT 似乎是最简单且最容易重现的参数。
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