. The Australian zoologist. Zoology; Zoology; Zoology. A. J. GOLDFINCH and R. E. MOLNAR In the half-bound the hindlimbs strike the ground together, but the forelimbs do not. The forelimb striking second is the leading forelimb, as it is placed in front of the other fore-limb. While half-bounding T. vulpecula was able to change the leading forelimb without breaking the rhythm of movement. This may reduce fatigue. However, because of this change, use of Hildebrand's method of analysis proved difficult. Midtime lag was impossible to calculate, as the delays in contact by either forelimb were unre


. The Australian zoologist. Zoology; Zoology; Zoology. A. J. GOLDFINCH and R. E. MOLNAR In the half-bound the hindlimbs strike the ground together, but the forelimbs do not. The forelimb striking second is the leading forelimb, as it is placed in front of the other fore-limb. While half-bounding T. vulpecula was able to change the leading forelimb without breaking the rhythm of movement. This may reduce fatigue. However, because of this change, use of Hildebrand's method of analysis proved difficult. Midtime lag was impossible to calculate, as the delays in contact by either forelimb were unrelated to loss of contact by the same limb. Variability was frequently observed between strides of a single individual. % 50 40- 30- 20 10 5 6 COMBINATION. 10 FIG. 10, -(Possible combinations of support as percent of stride interval (), for the walk (shaded) and the half-bound (unshaded) of T. vulpecula on the treadmill. 1: single hindlimb; 6: both forelimbs; 7: both hind- and one forelimb; 8: both fore- and one hindlimb; 9: all limbs; 10: no limbs, ( suspension). 2: single forelimb; 3: diagonal limbs; 4: ipsilateral limbs; 5: both hindlimbs; Dagg and de Vos (1968a; 1968b) have considered combinations of support limbs. Histograms (Fig. 10), indicating each possible combination of support as a percentage of the stride interval, allow direct comparison of the two gaits used on the treadmill. Diagonal limbs support the body for more than half the stride interval whilst walking. Support by one (fore) or three (two hind and one fore) Aust. Zool. 19(3), 1978 287. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Royal Zoological Society of New South Wales; Royal Zoological Society of New South Wales. Proceedings. [Sydney, Royal Zoological Society of New South Wales]


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914