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Biomedical subjects

R Cailliet

Publications and source records attributed to R Cailliet.

15 recordsLinked to original sources
PubMed1985

Vagotonic effect of inversion therapy upon resting neuromuscular tension.

Inversion therapy has become a popular treatment for low back pain but little experimental evidence is available to suggest a physiological basis for such use. On the basis of earlier work showing a vagotonic influence of inversion upon the cardiovascular system, it was our purpose to test the hypothesis that such vagotonic effects are also operative in the nervous system and thus cause decreased electrical activation of the resting musculature. To test this hypothesis 12 healthy subjects, seven female, five male (age 19-37, M = 28.9 +/- 5.8 years) were selected from among 45 who were screened on the basis of having resting IEMG scores at least one S.E. above electrical silence. Each subject acted as his own control and visited the laboratory on four occasions of which two involved EMG testing pre and post inversion for two minutes and the other two were control before and after an equivalent period of rest. The mean reduction in neuromuscular tension after inversion was 28.3 percent compared with 7.1 percent after control. This difference was significant at P less than 0.04. A two minute period appears to be sufficient and the effect may persist for as much as two hours. Heart rate and blood pressures taken before and after inversion were not significantly different from controls.

Adult↗
PubMed1968

Pain in the neck and arm. Diagnosis by history and examination.

The cause of pain in the neck or pain in the arm coming from the neck can be accurately diagnosed by proper clinical examination. This requires knowledge of normal functional anatomy and understanding where pain can originate and what factors initiate the pain. The examination consists of testing for these abnormalities of motion and reproducing the symptoms by these motions. Weighing the history, both of trauma and indications of deep-seated tension or anxiety, against the conditions observed on physical examination, is important to correct diagnosis.Recognizing abnormal neck posture and activities reproducing pain in the neck and arm examination reveals the mechanism of pain. Treatment becomes evident.

Arm↗
PubMedDate not supplied

The maturation and aging of the vertebrae of marmosets.

This study deals with the growth, maturation, and age changes to the cartilaginous end-plates of vertebrae from marmosets (Callithrix jacchus) varying in age from birth to 10 years. The cartilaginous end-plate is divided into an inner growth layer and an outer articular zone that abuts against the intervertebral disc. The growth cartilage gradually narrows and disappears by 1 year of age, when the animal reaches physical maturity. The articular cartilage undergoes changes in collagen and ground substance that leads to its calcification. There was a progressive resorption of the calcified articular cartilage beginning at 3 years of age and continuing throughout the aging period. In the vertebrae of 8- and 10-year-old animals, only a thin layer of calcified cartilage separates the disc from the underlying bone.

Aging↗
PubMedDate not supplied

Vertebral end-plate changes with aging of human vertebrae.

The present study describes the sequential age changes within the growth and articular layers of the cartilaginous end-plates of vertebrae from humans varying in age from birth to 73 years. There is a gradual reduction in the width of the growth cartilage up to 16-20 years of age. During adulthood and progressing into old age (60-73 years), the end-plates consist of only articular cartilage which undergoes calcification followed by resorption and replacement by bone. Age changes are observed in the arterioles, capillaries, and venules found in the nutrient canals or spaces of the bone adjacent to the cartilage or disc. The calcification of the articular cartilage and vascular changes seen in the older vertebrae would impede the passage of nutrients from the blood to the disc proper. Collagen fibers are observed arising from the older vertebral end-plates to course into the midregion of the disc.

Adolescent↗