Abdominal muscle size and symmetry in normal subjects
Abdominal muscle size and symmetry in normal subjects
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DOI：
10.1002/mus.20589
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发表时间：
2006-09-01
期刊：
影响因子：
3.4
通讯作者：
Newham, Dianne J.
中科院分区：
文献类型：
--
作者：
Rankin, Gabrielle;Stokes, Maria;Newham, Dianne J.
这项研究旨在建立腹肌大小和对称性的正常参考范围，并考察性别和年龄对这些参考范围的影响。研究对象123名，其中男性55名(年龄21-72岁)，女性68名(年龄20-)。对腹肌进行实时超声成像。测量内、外斜肌(10，EO)、腹横肌(TA)、腹直肌(RA)的厚度和横截面积(CSA)，并确定绝对和相对肌肉厚度(占肌肉总厚度的百分比)、厚度顺序和对称性(两侧差异百分比)。男性的肌肉明显比女性大，而且肌肉大小与年龄的相关性不大。肌肉相对厚度模式为RA>；10>；EO>；TA。三个侧方肌肉的总绝对厚度对称性为8%~9%(平均)，但个别肌肉存在绝对大小不对称(13%~24%)，而相对厚度对于所有肌肉是对称的。这些发现为正常男性和女性的腹肌提供了可靠的参考数据，以便能够与临床组进行比较，以评估异常情况并建立评估干预效果的敏感性。
This study was undertaken to establish normal reference ranges for abdominal muscle size and symmetry and to examine the effects on these of gender and age. We studied 123 subjects, consisting of 55 men (aged 21-72 years) and 68 women (aged 20-64 years). Real-time ultrasound imaging of the abdominal muscles was performed. Thickness of internal and external oblique (10, EO), transversus abdominis (TA), and rectus abdominis (RA), and cross-sectional area (CSA) of RA were measured, and absolute and relative muscle thickness (percent total muscle thickness), order of thickness, and symmetry (percent difference between sides) were determined. Males had significantly larger muscles than females and size was poorly correlated with age. The pattern of relative muscle thickness was RA > 10 > EO > TA. Symmetry for total absolute thickness of all three lateral muscles was 8%-9% (mean) but for individual muscles there was asymmetry of absolute size (13%-24%), whereas relative thickness was symmetrical for all muscles. These findings provide robust reference data for the abdominal muscles in normal males and females in order to enable comparison with clinical groups to assess abnormalities and establish sensitivity for evaluating the effectiveness of interventions.