@article{oai:nsg.repo.nii.ac.jp:00005007,
 author = {Odagiri, Masahiro and Oyama, Mineo and Matsuzawa, Shota and Nakamura, Yuichi and Koizumi, Hiroaki and Fujime, Chihiro and Tazawa, Aoi and Ikeno, Eigo},
 issue = {2},
 journal = {Niigata journal of health and welfare, 1346-8782},
 month = {},
 note = {application/pdf, 論文(Article), Main functions of anconeus muscles are considered to be elbow joint extension. It is assumed that the anconeus muscle is a muscle with a braking function for varus movement for the elbow joint from the anatomical features such as the direction of muscles and smallness of the muscle volume. However, there have been no research reports that indicate characteristics of anconeus muscles in vivo. Therefore, in this study, for the purpose of elucidating a braking function for varus movement of anconeus muscles in detail, the authors derived EMGs in extending and valgus movement of an elbow joint as well as measured elbow joint extension torque and observed dynamics of humerus and ulna by ultrasound imaging in the case that tetanic contraction was induced by electrically stimulating anconeus muscles. Eight healthy adults were employed as subjects, and EMGs were derived with wire electrode from anconeus muscles in addition to long head of triceps brachii muscles for comparison. The measurement positions were 4 flexed positions of 10°, 30°, 60° and 90° in the elbow joint. As a result, the anconeus muscles’ activity increased in the flexion range for extension movement and in the extension range for valgus movement. Activity of the long head of triceps brachii muscles in the case of valgus movement was an extremely low value. Extension torque caused by electrical stimulation to anconeus muscle did not occur in the extension range, and dynamics that ulna biased into the valgus direction was observed in two subjects. From these results, the anconeus muscle was judged as a muscle with the valgus function of the elbow, in other words, a braking function for varus in the elbow extension region.},
 pages = {144--154},
 title = {Function of the anconeus muscle in the elbow joint},
 volume = {19},
 year = {2019}
}