[Purpose] The purpose of this study is to find the best body spots on the chest and
abdomen wall to obtain the correlated indicators to the vital capacity. [Subjects and
Methods] Thirty healthy male staff of the center served as the participants were advised
to conduct a breathing movement using spirometer and a wearable strain sensor (WSS)
respectively, which was the measured at four spots on chest and abdomen wall from maximal
end of inspiration to maximal end of expiration. The Pearson’s correlation analysis was
conducted to find the correlation of the data obtained respectively by the WSS and
spirometer. [Results] The correlation of the mobility data at the four body spots to the
vital capacity data were calculated for each level by means of Pearson’s correlation
coefficient, which showed that the values at each body spot were positive significant
correlations and the highest value was at the 10th rib. [Conclusion] There was a
correlation between the mobility data of the chest and abdomen obtained by the WSS and the
vital capacity data obtained by the spirometer, for which, the 10th rib is the best body
spot to detect the positive significant correlation.