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The cat step cycle: Hind limb joint angles and muscle lengths during unrestrained locomotion
A cinematographic analysis of the unrestrained walking, trotting, galloping, jumping and landing movements of 11 adult cats was undertaken to provide previously unavailable information concerning theExpand
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Analysis of muscle receptor connections by spike-triggered averaging. 1. Spindle primary and tendon organ afferents.
1. The synaptic connections of 44 single identified muscle spindle Ia afferents and of 21 Golgi tendon organ (Ib) afferents from medial gastrocnemius (MG) were studied in 46 cats by theExpand
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The effect of the stimulation pattern on the fatigue of single motor units in adult cats.
1. The main purpose of this study was to examine the effects of two subtly different stimulus patterns on the force developed by fast‐twitch, fatiguable motor units in a cat hindlimb muscle duringExpand
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Adaptation of cat motoneurons to sustained and intermittent extracellular activation.
1. The main purpose of this study was to quantify the adaptation of spinal motoneurons to sustained and intermittent activation, using an extracellular route of stimulating current application toExpand
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Tetrapartite classification of motor units of cat tibialis posterior.
The results of this study and its precedents suggest that the tetrapartite classification scheme might have universal applicability to at least the muscle units of cat hindlimb muscles and perhapsExpand
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Associations between the morphology and physiology of ventral‐horn neurons in the adult turtle
This study compared some morphologic and physiological properties of adult turtle spinal motoneurons (MNs) vs. interneurons (INs). Reconstructions were made of 20 biocytin‐stained cells, which hadExpand
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The motor units of cat medial gastrocnemius: Problem of their categorisation on the basis of mechanical properties
SummaryThe mechanical properties of 126 motor units from medial gastrocnemius muscle have been studied in 12 adult cats.Units with long contraction times (>45 msec) were non fatigable (24 out of 26Expand
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Analysis of muscle receptor connections by spike-triggered averaging. 2. Spindle group II afferents.
1. The spike-triggered averaging (STA) method has been used to study synaptic connections of nine spindle group II afferents from medial gastrocnemius to 151 motoneurons of leg muscles in the cat. 2.Expand
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The motor units of cat medial gastrocnemius: Electrical and mechanical properties as a function of muscle length
The effects of changing muscle length on the mechanical properties of 89 motor units from adult cat medial gastrocnemius have been studied in eight experiments.
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Motoneurons: A preferred firing range across vertebrate species?
The term “preferred firing range” describes a pattern of human motor unit (MU) unitary discharge during a voluntary contraction in which the profile of the spike‐frequency of the MU's compound actionExpand
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