US 12,419,532 B2
Method of evaluating core muscles by bioimpedance technology
Chuan-Chung Tsai, Taichung (TW); and Kuen-Chang Hsieh, Taichung (TW)
Assigned to CHARDER ELECTRONIC CO., LTD., Taichung (TW)
Filed by CHARDER ELECTRONIC CO., LTD., Taichung (TW)
Filed on May 26, 2022, as Appl. No. 17/825,881.
Claims priority of application No. 111113094 (TW), filed on Apr. 6, 2022.
Prior Publication US 2023/0320607 A1, Oct. 12, 2023
Int. Cl. A61B 5/053 (2021.01)
CPC A61B 5/053 (2013.01) [A63B 2225/50 (2013.01); A63B 2230/08 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method of evaluating core muscles by bioimpedance technology, comprising the steps of:
(a) attaching a plurality of electrode sets on hands and feet of a subject in a way that two of the plurality of electrode sets attaching the hands or the feet of the subject to form a measurement loop, measuring and obtaining a resistance and a reactance of the subject by the plurality of electrode sets of a bioimpedance measuring instrument, and obtaining age, gender, and impedance factor (h2/Z) of the subject; and
(b) according to the age, the gender and the obtained impedance fact of the subject, calculating a cross-sectional area of core muscles of the subject by a following formula: CMBIA=a−b×age+c×h2/Z+d×Sex, wherein CMBIA is a cross-sectional area of core muscles measured by a bioelectrical impedance analysis, and a−d in a calculation formula are regression coefficients in a regression analysis.