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Infant With Very Stiff Muscles - Livestrong
Infants with very stiff muscles may clench their hands and feet, such as clenching their fingers into a fist or curling their toes, or cross their legs in a scissor-like fashion when picked up. Hypertonia is the medical term for high muscle tone, meaning the baby's muscles constantly contract, even when the muscle is not in use; it can be a symptom of a wide variety of diseases and conditions.
http://www.livestrong.com/article/516032-infant-with-very-stiff-muscles/
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Muscle Hypertonia Symptoms, Diagnosis, Treatments and Causes - RightDiagnosis
Muscle Hypertonia information including symptoms, diagnosis, misdiagnosis, treatment, causes, patient stories, videos, forums, prevention, and prognosis.
http://www.rightdiagnosis.com/m/muscle_hypertonia/intro.htm
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What is Hypertonia? - Disabled World
Hypertonia is a condition marked by an abnormal increase in muscle tension and a reduced ability of a muscle to stretch. It is caused by injury to motor pathways in the central nervous system, which carry information from the central nervous system to the muscles and control posture, muscle tone, and reflexes.
http://www.disabled-world.com/artman/publish/hypertonia.shtml
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Hypertonia - Wikipedia, the Free Encyclopedia
Wikipedia's information about hypertonia.
https://en.wikipedia.org/wiki/Hypertonia
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Hypertonia Information Page: National Institute of Neurological Disorders and Stroke - NINDS
Hypertonia disease information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).
http://www.ninds.nih.gov/disorders/hypertonia/hypertonia.htm
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Hypertonia Definition - MedicineNet Health and Medical Information Produced by Doctors
Read doctor-produced health and medical information written for you to make informed decisions about your health concerns.
http://www.medicinenet.com/script/main/art.asp?articlekey=3850
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Classification and Definition of Disorders Causing Hypertonia in Childhood - Pediatrics
This report describes the consensus outcome of an interdisciplinary workshop that was held at the National Institutes of Health in April 2001. The purpose of the workshop and this article are to define the terms "spasticity," "dystonia," and "rigidity" as they are used to describe clinical features of hypertonia in children.
http://pediatrics.aappublications.org/content/111/1/e89
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Hypotonia and Hypertonia - Boundless
Learn more about hypotonia and hypertonia in the Boundless open textbook.
https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/muscle-tissue-9/muscle-diseases-disorders-injury-and-clinical-cases-101/hypotonia-and-hypertonia-557-4493/
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Hypertonic and Hypotonic Cerebral Palsy - Birth Injury Guide
Hypertonic and hypotonic cerebral palsy affect millions of children worldwide, but in most cases can be handled with the correct treatment plans.
http://www.birthinjuryguide.org/cerebral-palsy/types/hypertonic-and-hypotonic/
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Center for Cerebral Palsy at UCLA
Because cerebral palsy is a diagnosis of movement and posture, people who have cerebral palsy will have one or more of the following movement disorders.
http://uclaccp.org/what-is-cp/features-of-cp/
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Hypertonia Symptoms: Hypertonia Has Many Causes, Manifestations - Cerebral Palsy Information
Hypertonia symptoms are among the most characteristic symptoms of cerebral palsy. They can also occur for other reasons. Most of the time, if somebody under the age of two manifests these symptoms, there is an accompanying diagnosis of cerebral palsy.
http://www.cerebral-palsy-information.com/help-center/hypertonia-symptoms-hypertonia-has-many-causes-manifestations/
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Hypertonic and Hypotonic Cerebral Palsy
While there are many forms of cerebral palsy, hypertonic and hypotonic represent two of the most common types. 80% of those in the United States who have cerebral palsy will suffer from the hypertonic version. Both have similar origins, but differ in their symptoms.
http://www.cerebralpalsysymptoms.com/cerebral-palsy/hypertonic-hypotonic