title: [A preliminary study on measurement of muscle activity during mammography positioning].
abstract: This study focused on measuring examinees' muscle activities during mammography positioning using surface electromyography. Muscle activities were measured in three women (40-50s) in two-view mammography (MLO: mediolateral oblique, CC: craniocaudal). The muscles measured were the sternocleidomastoid, biceps, trapezius, and gastrocnemius, selected based on the visual analogue scale reported by Sharp et al. We used a multi-purpose portable bio-amplifier (Polymate AP1000) to assess the muscle activities. The results showed that the trapezius in right MLO and sternocleidomastoid in right CC were active in all three subjects. This suggests that the muscles directly related to mammography positioning are highly active. In addition, the gastrocnemius was active throughout the mammography. The biceps and gastrocnemius were also active in at least one of the three women. We believe that quantitative assessment of muscle activities during mammography positioning will contribute to the improvement of pain-reduction programs in mammography.
authors: School of Health Sciences, Faculty of Medicine, Niigata University.
authors: Mieko
authors: M
authors: Uchiyama
authors: Yongbum
authors: Y
authors: Lee
authors: Kiyoko
authors: K
authors: Kazama
authors: Yasuko
authors: Y
authors: Minagawa
authors: Du-Yih
authors: DY
authors: Tsai
authors: Mieko
authors: M
authors: Sadakata
authors: Mitsuko
authors: M
authors: Sayama
mesh_terms: D000328:Adult; D000669:Amplifiers, Electronic; D004576:Electromyography; D005260:Female; D006801:Humans; D008327:Mammography / Q000379:methods*; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000502:physiology*; D010146:Pain / Q000517:prevention & control; D056888:Patient Positioning