Intrinsic properties and reflex compensation in reinnervated triceps surae muscles of the cat: Effect of movement history
Journal of Neurophysiology, ISSN: 0022-3077, Vol: 90, Issue: 3, Page: 1547-1555
2003
- 25Citations
- 15Usage
- 52Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations25
- Citation Indexes25
- 25
- CrossRef19
- Usage15
- Abstract Views15
- Captures52
- Readers52
- 52
Article Description
Effects of prior motion on ramp stretch responses of reflexive and areflexive muscles were measured in decerebrate cats. Soleus and gastrocnemius muscles were rendered areflexive by reinnervation a minimum of 9 mo before the terminal experiments. The introduction of a shortening phase prior to the ramp stretch increased the normalized initial stiffness of muscles and decreased the tendency to yield of the reinnervated muscles as compared with the case in which muscles contracted isometrically prior to stretch. Yielding was compensated by reflex action for all amplitudes of prior shortening in soleus and gastrocnemius muscles. The comparison of responses of untreated and reinnervated muscles indicated that the contribution of reflex action progressively declined with the amplitude of prior shortening as the extent of yielding diminished. In soleus muscle, during a variable delay period of isometric contraction interposed between shortening and lengthening force generation, initial stiffness and yielding returned to levels seen with isometric contractile history. However, these attributes recovered at different rates, suggesting that distinct processes are responsible for initial stiffness and yielding. Yielding was compensated for by reflex action regardless of the length of the interposed delay or of the amplitude of the prior shortening. These and previous findings indicate that the stretch reflex regulates muscular stiffness for a wide range of conditions. This regulation apparently arises from complementary mechanical properties of intrafusal and extrafusal muscle.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0141788610&origin=inward; http://dx.doi.org/10.1152/jn.00719.2002; http://www.ncbi.nlm.nih.gov/pubmed/12736243; https://www.physiology.org/doi/10.1152/jn.00719.2002; https://corescholar.libraries.wright.edu/ncbp/8; https://corescholar.libraries.wright.edu/cgi/viewcontent.cgi?article=1007&context=ncbp; http://jn.physiology.org/cgi/doi/10.1152/jn.00719.2002; http://jn.physiology.org/content/90/3/1547
American Physiological Society
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