Vansant G, Van Gaal L, De Leeuw I
Department of Endocrinology, Metabolism and Clinical Nutrition, University of Antwerp, Belgium.
JPEN J Parenter Enteral Nutr. 1994 Sep-Oct;18(5):427-9. doi: 10.1177/0148607194018005427.
Both skinfold anthropometry and bioelectrical impedance are indirect, simple bedside methods to assess body composition. It is not clear, however, whether the results of these methods are comparable. In this study, body composition was determined in 449 subjects by skinfold anthropometry and by bioelectrical impedance. Percentage of body fat ranged from 8.0% to 47.5% with the skinfold technique and from 0.6% to 78.5% with bioelectrical impedance. Linear regression analysis showed a significant positive correlation (r = .84; p < .0001) between the results of both techniques. However, plot analysis showed that, in comparison with bioelectrical impedance, skinfold measurements overestimate fat mass in the lower weight range and underestimate it in obese subjects. We conclude that the results of skinfold anthropometry and bioelectrical impedance are not comparable, especially in the extreme ranges of body fat. At the present time, other, more rigorous techniques are necessary to assess body composition accurately, in the extreme ranges of body fat in particular.
皮褶厚度人体测量法和生物电阻抗法都是间接、简单的床边评估身体成分的方法。然而,尚不清楚这些方法的结果是否具有可比性。在本研究中,通过皮褶厚度人体测量法和生物电阻抗法对449名受试者的身体成分进行了测定。皮褶厚度技术测得的体脂百分比范围为8.0%至47.5%,生物电阻抗法测得的范围为0.6%至78.5%。线性回归分析显示两种技术的结果之间存在显著正相关(r = 0.84;p < 0.0001)。然而,散点图分析表明,与生物电阻抗法相比,皮褶测量在体重较低范围内高估了脂肪量,而在肥胖受试者中则低估了脂肪量。我们得出结论,皮褶厚度人体测量法和生物电阻抗法的结果不具有可比性,尤其是在体脂的极端范围内。目前,需要其他更严格的技术来准确评估身体成分,特别是在体脂的极端范围内。