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May 1, 1995The American Journal of Sports Medicine

The Synergistic Action of the Capsule and the Shoulder Muscles

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Why the study?

Does electrical stimulation of glenohumeral capsule nerves elicit electromyographic activity in shoulder muscles in a feline model?

Population

Feline model

Comparison

Electrical stimulation of the anterior… vs Transection of the three articular nerves just…

Design

Preclinical

Authors

CGCarlos A. GuancheLouisiana State UniversityTKTheodore KnattLouisiana State UniversityMSMoshe SolomonowDenver Health Medical Center

Discussion

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Implication

Supports reflex arc in feline shoulder stability; leaves open human translation and clinical relevance.

Structured PICO

Does electrical stimulation of glenohumeral capsule nerves elicit electromyographic activity in shoulder muscles in a feline model?

P
Population
Feline model
I
Intervention
Electrical stimulation of the anterior, inferior, and posterior axillary articular nerves with supramaximal, 100-microseconds pulses using bipolar hook electrodes
C
Comparator
Transection of the three articular nerves just distal to their emergence
O
Outcome
Electromyographic activity in the biceps, subscapularis, supraspinatus, infraspinatus, and acromiodeltoid musclessurrogate

The study demonstrates a reflex arc from mechanoreceptors in the glenohumeral capsule to shoulder muscles, confirming synergism between passive and active restraints of the joint.

Cite This Study

Guanche et al. (1995) studied this question.

synapsesocial.com/papers/6a2153896edeeecbd302f681https://doi.org/10.1177/036354659502300308
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1The Untreated Anterior Cruciate Ligament Rupture1983 · 277 citations
  2. 2The synergistic action of the anterior cruciate ligament and thigh muscles in maintaining joint stability1987 · 806 citations
  3. 3Mechanoreceptors in human cruciate ligaments. A histological study.1984 · 560 citations
  4. 4Stiffness and laxity of the knee--the contributions of the supporting structures. A quantitative in vitro study1976 · 844 citations
  5. 5THE SIGNIFICANCE OF THE SUBSCAPULARIS MUSCLE IN THE PATHOGENESIS OF RECURRENT ANTERIOR DISLOCATION OF THE SHOULDER1972 · 221 citations