Kang-Soo Kim1, Do-Beom Son2, Heung-Ho Choi1, Choong-Ki Eun3, Chi-Woong Mun1,4
1Biomedical Engineering, Inje University, Gimhae, Gyoungnam, Korea, Republic of; 2Radiology, Haeundae Paik Hospital, Busan, Gyoungnam, Korea, Republic of; 3Medicine, Radiology, Haeundae Paik Hospital, Busan, Gyoungnam, Korea, Republic of; 4UHRC , Inje University, Gimhae, Gyoungnam, Korea, Republic of
The purpose of this study is to investigate the the electrophysiological signal and energy phosphate metabolism measured by EMG and 31P-MRS, respectively, to examine the relationship of muscle fatigue during isometric calf-muscle exercise in human. Four healthy, male volunteers participated in this study. The subjects performed the static ankle plantar flexion exercise at 45 degree with 30% MVC according to the exercise protocol. The correlation coefficient(r) was 0.866 and they had statistically significant (P<0.001) between EMG and 31P-MRS. If it is possible to estimate muscle fatigue using the MDF and PCr/Pi, it will be widely used in various fields.