Force analysis of individual muscles acting simultaneously on the shoulder joint during isometric abduction

Arkin, 1938, Absolute muscle power. The internal kinesiology of muscle, Vol. 12D, 123 Basmajian, 1957, Integrated actions and functions of the chief flexors of the elbow: a detailed electromyographic analysis, J. Bone Jnt Surg., 39-A, 1106, 10.2106/00004623-195739050-00011 Basmajian, 1967 Bernstein, 1967 Braune, 1890, Über den Schwerpunkt des Menschlichen Körpers mit Rücksicht auf die Ausrüstung des Deutschen Infanteristen, Abh. d. math.-phys. Cl. d. k. Sächs. Gessellsch. d. Wiss., 15, 561 1969, 659 De Luca, 1972, A stochastic model for motor unit firing intervals and its applicability to myoelectric signals recorded during constant force isometric contractions in man Dempster, 1955, Space requirements of the seated operator: geometrical, kinematic and mechanical aspects of the body with special reference to the limbs, WADC Technical Report No. 55-159 Fick, 1910, Vol. 2 Ikai, 1968, Calculation of muscle strength per unit cross-sectional area of human muscle by means of ultrasonic measurements, Int. Z. Angewandte Physiol., 26, 26 Inman, 1952, Relation of human electromyogram to muscular tension, EEG Clin. Neurophysiol., 4, 187, 10.1016/0013-4694(52)90008-4 Johnson, 1903, Ergebnisse der Physiologie, Bd. 2, 623 1971 Lippold, 1952, The relation between integrated action potentials in a human muscle and its isometric tension, J. Physiol, 117, 492, 10.1113/jphysiol.1952.sp004763 Morris, 1948, The measurements of the strength of muscle relative to the cross-section, Res. Quart. Am. Assn. Health Phys. Ed. Recrn., 19, 295 Provins, 1965 Rechlinghausen, 1920 Scheving, 1959, An electromyographic study of some muscles acting on the upper extremity of man, Anat. Rec., 135, 239, 10.1002/ar.1091350402 Wright, 1962 Yamshon, 1949, Kinesiologic electromyography—III. The deltoid, Arch. Phys. Med., 30, 286