[Electromyographic analysis of the levator scapulae and rhomboideus major muscle in movements of the upper limb (author's transl)].
The participation of the levator scapulae and rhomboideus major muscles in some movements of upper limb was analysed in 21 young adult male volunteers. A 2 channel TECA TE 4 electromyograph connected with single coaxial needle electrodes was used. In abduction, elevation, adduction, flexion and circunduction occurred participation of both muscles in free movements of the upper limb. In extension, however, these muscles were inactive. In the same movements analysed with load, it was registered major intensity of action of these muscles as compared with those obtained in free movements.
D001132:Arm / Q000502:physiology*; D004576:Electromyography; D006801:Humans; D008297:Male; D009132:Muscles / Q000502:physiology; D012782:Shoulder / Q000502:physiology*
Analyse électromyographique des muscles levator scapulae et rhomboideus major dans les mouvements du membre supérieur.