Overend T J, Cunningham D A, Paterson D H, Lefcoe M S
Faculty of Kinesiology, U. of Western Ontario, London.
Can J Appl Physiol. 1993 Sep;18(3):263-73. doi: 10.1139/h93-023.
Anthropometric (AP) and computed tomographic (CT) methods of determining limb and muscle-plus-bone cross-sectional area (CSA) and volume (Vol) were compared in 13 young (M = 24.5 yrs) and 11 old (M = 71.0 yrs) men. CSA of total thigh, muscle-plus-bone, quadriceps, and hamstring muscle compartments and muscle were measured from CT scans. Corresponding muscle Vol were estimated from anthropometric equations. Prediction equations for CT measures were developed from AP measures using multiple linear regression. AP and CT techniques produced different values for thigh component CSA and Vol, especially in the old men. AP overestimated muscle-plus-bone CSA and Vol (4-6%) and underestimated skin and subcutaneous tissue CSA and Vol (17-33%). Prediction equations for quadriceps CSA and Vol (R2 = 80-96%) were more accurate than equations for hamstrings (R2 = 42-65%). Specific thigh muscle CSA and Vol can be predicted from AP measures (SEE 5-15%). These findings may have clinical significance when normalizing strength per unit of muscle size.
在13名年轻男性（平均年龄24.5岁）和11名老年男性（平均年龄71.0岁）中，对用于确定肢体以及肌肉加骨骼横截面积（CSA）和体积（Vol）的人体测量（AP）方法和计算机断层扫描（CT）方法进行了比较。通过CT扫描测量了大腿整体、肌肉加骨骼、股四头肌和腘绳肌肌腔以及肌肉的CSA。根据人体测量方程估算相应的肌肉Vol。使用多元线性回归从AP测量值中得出CT测量的预测方程。AP和CT技术得出的大腿各部分CSA和Vol值不同，尤其是在老年男性中。AP高估了肌肉加骨骼的CSA和Vol（4 - 6%），低估了皮肤和皮下组织的CSA和Vol（17 - 33%）。股四头肌CSA和Vol的预测方程（R² = 80 - 96%）比腘绳肌的方程（R² = 42 - 65%）更准确。特定大腿肌肉的CSA和Vol可通过AP测量值进行预测（标准误5 - 15%）。在将力量按单位肌肉大小进行标准化时，这些发现可能具有临床意义。
