A low-cost method to analyse footprint patterns

Klapdor, Karin; Dulfer, Bernd G; Hammann, Anja; Staay, Franz Josef van der

doi:10.1016/s0165-0270(97)00042-3

Cited by 100 publications

(72 citation statements)

References 22 publications

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“…Study on footprints in rats and chicken has already been used to show the impact of age or neurological problems on gait components, such as the angle of the foot, the toe print, the sliding and the stride length and wideness (Sheets et al, 1987;Klapdor et al, 1997). In the present study, the stride length and the speed measured were shorter than the ones obtained using kinematics.…”

Section: Discussioncontrasting

confidence: 43%

Assessment of lameness in sows using gait, footprints, postural behaviour and foot lesion analysis

Gregoire

Bergeron

D’Allaire

et al. 2013

Animal

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Lameness in sows has an economic impact on pig production and is a major welfare concern. The aim of the present project was to develop methods to evaluate and quantify lameness in breeding sows. Five methods to study lameness were compared between themselves and with visual gait scoring used as a reference: footprint analysis, kinematics, accelerometers, lying-tostanding transition and foot lesion observation. Fifty sows of various parities and stages of gestation were selected using visual gait scoring and distributed into three groups: lame (L), mildly lame (ML) and non-lame (NL). They were then tested using each method. Kinematics showed that L sows had a lower walking speed than NL sows (L: 0.83 6 0.04, NL: 0.96 6 0.03 m/s; P , 0.05), a shorter stride length than ML sows (L: 93.0 6 2.6, ML: 101.2 6 1.5 cm; P , 0.05) and a longer stance time than ML and NL sows (L: 0.83 6 0.03, ML: 0.70 6 0.03, NL: 0.69 6 0.02 s; P , 0.01). Accelerometer measurements revealed that L sows spent less time standing over a 24-h period (L: 6.3 6 1.3, ML: 13.7 6 2.4, NL: 14.5 6 2.4%; P , 0.01), lay down earlier after feeding (L: 33.4 6 4.6, ML: 41.7 6 3.1, NL: 48.6 6 2.9 min; P , 0.05) and tended to step more often during the hour following feeding (L: 10.1 6 2.0, ML: 6.1 6 0.5, NL: 5.4 6 0.4 step/min standing; P 5 0.06) than NL sows, with the ML sows having intermediate values. Visual observation of back posture showed that 64% of L sows had an arched back, compared with only 14% in NL sows (P 5 0.02). Finally, footprint analysis and observation of lying-to-standing transition and foot lesions were not successful in detecting significant differences between L, ML and NL sows. In conclusion, several quantitative variables obtained from kinematics and accelerometers proved to be successful in identifying reliable indicators of lameness in sows. Further work is needed to relate these indicators with causes of lameness and to develop methods that can be implemented on the farm.

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Section: Discussioncontrasting

confidence: 43%

Assessment of lameness in sows using gait, footprints, postural behaviour and foot lesion analysis

Gregoire

Bergeron

D’Allaire

et al. 2013

Animal

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“…To obtain the walking pattern, the hind paws of the rats were pressed onto an inkpad (Pelikan, Hannover, Germany) and to reach a dark compartment, the rats were allowed to walk up a small inclining gangway (slope 20-, length 1 m, width 14 cm), which was lined with white paper (modified from Klapdor et al, 1997;Ozmen et al, 2002). All rats had a few pre-training runs.…”

Section: Motor Recovery-walking Track Analysismentioning

confidence: 99%

Differentially promoted peripheral nerve regeneration by grafted Schwann cells over-expressing different FGF-2 isoforms

Haastert

Lipokatic

Fischer

et al. 2006

Neurobiology of Disease

111

118

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“…Regularity of animals' gaits was observed on a white paper after applying India ink to the paws. The stride length and width were compared between null and age-matched C57 controls using previously published methods (Klapdor et al 1997;Clarke and Still 1999) and adapted from a standard protocol used by the Charles River Laboratories (Wilmington, MA, USA). Findings with P20 pups are reported in this paper.…”

Section: Tests For Imbalance Behaviorsmentioning

confidence: 99%

Osteopontin is not Critical for Otoconia Formation or Balance Function

Zhao

Jones

Thoreson

et al. 2008

JARO

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Unlike the structural and mechanical role of bone crystals, the inertial mass of otoconia crystals provides a shearing force to stimulate the mechanoreceptors of the utricle and saccule (the gravity receptor organ) under the stimuli of linear motion. It is not clear whether otoconia, composed primarily of CaCO 3 and glycoproteins, go through similar calcification processes as bone. We have recently shown that otoconin-90 (Oc90) regulates the growth of otoconia crystals as osteopontin does bone crystals. Here, we analyzed the role of this non-collagenous bone matrix protein, osteopontin, in otoconia formation and balance function utilizing its knockout mice, whose inner ear phenotype has not been examined. Despite the presence of the protein in wild-type otoconia and vestibular hair cells, morphological, ultrastructural, and protein and calcium composition analyses of osteopontin null otoconia show that the protein is not needed for crystal formation, and no evidence of compensatory protein deposition is found. Employment of a wide spectrum of balance behavioral tests demonstrates that the protein is not critical for balance function either, which is confirmed by the normal function of the gravity receptor organ directly measured with linear vestibular-evoked potentials (VsEPs). When compared with findings on other otoconins, the data manifest a hierarchy of importance of proteins in crystallization and indicate mechanistic similarities and differences between bone and otoconia calcification.

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A low-cost method to analyse footprint patterns

Cited by 100 publications

References 22 publications

Assessment of lameness in sows using gait, footprints, postural behaviour and foot lesion analysis

Assessment of lameness in sows using gait, footprints, postural behaviour and foot lesion analysis

Differentially promoted peripheral nerve regeneration by grafted Schwann cells over-expressing different FGF-2 isoforms

Osteopontin is not Critical for Otoconia Formation or Balance Function

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