The exterior of the horse . ate of rest in an attitude of extension whosedegree varies with the extent of the pace and the nature of the gait)should successively fulfil two very distinct rôles, of which the purposesare, first, to deaden the shock of concussion against the soil, and next,to extend itself. After this process is over, it again prepares to elevateitself. 1 These views have been demonstrated in a recent work entitled Lart équestre, par , p. 21 et suiv., Paris, 1887. Chez Rothschild. 1 Marey et Pages, Analyse cinématique des allures du cheval, in Comptes-Rendus de lAcadé-mi
The exterior of the horse . ate of rest in an attitude of extension whosedegree varies with the extent of the pace and the nature of the gait)should successively fulfil two very distinct rôles, of which the purposesare, first, to deaden the shock of concussion against the soil, and next,to extend itself. After this process is over, it again prepares to elevateitself. 1 These views have been demonstrated in a recent work entitled Lart équestre, par , p. 21 et suiv., Paris, 1887. Chez Rothschild. 1 Marey et Pages, Analyse cinématique des allures du cheval, in Comptes-Rendus de lAcadé-mie des sciences, 27 Septembre, 1886; ibid., Mouvement du membre pelvien chez lhomme,léléphant et le cheval, in Comptes-Rendus, 18 Juillet, 1887. THE MEMBERS. 197 1. Attenuation of Concussion.—This is effected during- themovement from 0 to 2 by the diminution of the two extreme angles(the scapulo-humeral and metacarpo-phalangeal) placed at the extremi-ties of the rigid radio-metacarpal segment. The fetlock is strongly. Fig. 55.—Action of the anterior member in the Phase of contact. | S. Phase of elevation. lowered and the radio-metacarpal segment pivots forward upon thepastern, which is horizontal and immobile. During the second period,from 1 to 2, the closure of the scapulo-humeral angle is most marked. 2. Extension of the Member.—Extension takes place in aprogressive manner from 2 to 3 (Fig. 55). The line of direction of themember becomes vertical, elongated, and at the termination is directeddownward and backward. The angle of the fetlock and that of theelbow are opened : the first by the gradual straightening of the pastern,which pivots on the coronet and becomes vertical ; the second bythe forward rotation of the radio-metacarpal division, which pivotsupon the first phalanx. As to the angle of the shoulder, it becomesslightly augmented by the forward rotation of the scapula. It is nowobserved that during this period the member can fulfil a function ofimpu
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecthorses, bookyear1892
