Rectus Abdominis Muscle Thickness is a Valid Measure of Cross-Sectional Area: Implications for Ultrasound.
Rectus Abdominis Muscle Thickness is a Valid Measure of Cross-Sectional Area: Implications for Ultrasound.
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DOI：
10.1016/j.acra.2021.06.005
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发表时间：
2022-03
影响因子：
4.8
通讯作者：
Paris, Michael T.
中科院分区：
文献类型：
--
作者：
Kelly, Ciara R.;Mourtzakis, Marina;Furberg, Helena;Tandon, Puneeta;Paris, Michael T.
腹直肌表现出早期和显著的肌肉萎缩，这在很大程度上是使用超声测量肌肉厚度的特征。然而，腹直肌厚度作为肌肉大小度量的有效性尚未建立，限制了对年龄相关变化的精确解释。在一个由女性和男性组成的异质性队列中，我们的目的是：1）评价腹直肌厚度和横截面积（CSA）之间的相关性，2）检查内脏脂肪组织（VAT）区室是否混淆腹直肌厚度的有效性。临床和健康人群的第3腰椎腹部计算机断层扫描用于评价腹直肌厚度和CSA以及VAT CSA。由于超声成像的视野有限，因此使用计算机断层扫描来捕获腹直肌CSA。本分析共纳入348名个体（31%为女性），平均年龄±标准差和体重指数分别为51.2 ± 15.4岁和28.0 ± 5.1 kg/m2。腹直肌厚度与CSA在女性（r=0.758; p<0.001）和男性（r=0.688; p<0.001）中观察到显著相关性。与年龄无关，VAT CSA与男性腹直肌厚度呈负相关（p=0.011），但与女性无关（p=0.446）。这些数据支持使用腹直肌厚度作为测量肌肉大小的女性和男性;然而，增值税隔间可能混淆其有效性在男性中的一个小的程度。
The rectus abdominis muscle exhibits early and significant muscle atrophy, which has largely been characterized using ultrasound measured muscle thickness. However, the validity of rectus abdominis muscle thickness as a metric of muscle size has not been established, limiting precise interpretation of age-related changes. In a heterogeneous cohort of women and men, our objectives were to: 1) evaluate the association between rectus abdominis muscle thickness and cross-sectional area (CSA), and 2) examine if the visceral adipose tissue (VAT) compartment confounds the validity of rectus abdominis muscle thickness. Abdominal computed tomography scans of the 3rd lumbar from clinical and healthy populations were used to evaluate rectus abdominis thickness and CSA, and VAT CSA. Computed tomography scans were utilized due to the limited field of view of ultrasound imaging to capture the rectus abdominis CSA. A total of 348 individuals (31% women) were included in this analysis, with a mean ± standard deviation age and body mass index of 51.2 ± 15.4 years and 28.0 ± 5.1 kg/m2, respectively. Significant correlations were observed between rectus abdominis thickness and CSA for women (r=0.758; p<0.001) and men (r=0.688; p<0.001). Independent of age, VAT CSA was negatively associated with rectus abdominis thickness in men (p=0.011), but not women (p=0.446). These data support the use of rectus abdominis muscle thickness as a measurement of muscle size in both women and men; however, the VAT compartment may confound its validity to a minor extent in men.
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