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Related to Poor muscle tone: hypotonia, Benign congenital hypotonia


Decrease of normal tonicity or tension, especially diminution of intraocular pressure or of muscle tone.



(hypotension), the lowering of tone (tension) of a tissue, organ, or system. The term “hypotonia” is most often used to denote a lowering of blood pressure below 105/65 mm Hg (14/8.7 kilonewtons per sq m) for men and 96/60 mm Hg (13.2/8 kilonewtons per sq m) for women, as a result of the lowering of the tone of the cardiovascular system. There are several forms of vascular hypotonia.

The physiological or adaptive form of hypotonia is found in many people, including those in physical training, athletes, and inhabitants of southern regions. The drop in arterial pressure is not accompanied by any symptoms of disease and is completely compensated for by the hemodynamic processes. Special treatment is not needed. Symptomatic hypotonia is one of the symptoms of a number of diseases, including many infectious diseases, tuberculosis, tumors, and some heart ailments. Treatment is directed at the removal of the basic disease. Primary or neurocirculatory hypotonia develops as an independent pathological process resulting from harmful effects on the neurohumoral system, which regulates vascular tone. (Among the factors that may adversely affect the neurohumoral system are negative emotions, strain on the nervous system as a result of mental overexertion, harmful habits, such as smoking and drinking, and certain occupational hazards.) Primary hypotonia may arise suddenly and is manifested by collapse, syncope, and shock. Chronic primary hypotonia is characterized by headaches, dizziness, decreased ability to adapt to changes in body position, poor sleep, and palpitations. When the process progresses, hypotonic disease develops. Treatment involves possible removal of the cause of the hypotonia, a strict regimen of work, rest, and diet, gymnastic and physiotherapeutic treatments, drug therapy, and treatment in a sanatorium or health resort.


Molchanov, N. S. Gipotonicheskie sostoianiia. Leningrad, 1962.(Bibliography.)


References in periodicals archive ?
The decision to have your dog undergo this surgery should not be taken lightly, as it is not without risks, mainly that of trauma to the sphincter muscle resulting in poor muscle tone and fecal incontinence.
This disease causes poor muscle tone (hypotonia) and persistent muscle weakness in infants.
Studies reveal, for example, that inadequate vitamin D intake is associated with poor muscle tone, and decreased vitamin B-12 has been found to reduce proprioception, thought to play a part in how the brain translates spatial knowledge and assist in orientation.
Direct tracheal suction is advised when meconium is observed and the infant is not vigorous, with absent or depressed respirations, heart rate less than 100 beats per minute, or poor muscle tone.
Most of the symptoms are blamed on poor muscle tone in the back, muscle tension or spasm, back sprains, ligament or muscle tears, or joint problems.
And, though beer guzzling can make a pot belly worse, dieting may not solve the problem, since gravity and poor muscle tone have a habit of ganging up on many SCI survivors.
Infants with botulism appear lethargic, feed poorly, are constipated, and have a weak cry and poor muscle tone.
If you are incontinent because your bladder never empties completely (overflow incontinence) or your bladder cannot empty because of poor muscle tone, past surgery, or spinal cord injury, you might use a catheter to empty your bladder.
Elderly women, arthritis sufferers and women with poor muscle tone may not be able to operate this gun.
Poor muscle tone (lack of tightness) in the muscles of the tongue and throat.
often lead to poor muscle tone and the patient's belief that being more active would be harmful