Juvenile idiopathic arthritis (AJI), is a frequent inflammatory disease in children, characterized by pain, arthritis, and deformities. Chronic inflammation leads to physical inactivity and can be associated with muscle weakness around affected joints, low bone strength, and mass(3). To our knowledge, no study has focused on the prevalence of sarcopenia in JIA and the data on the muscle disorder are lacking. The purpose of the present study is to detect sarcopenia and identify associated factors in children with JIA
Study Type
OBSERVATIONAL
Enrollment
60
all patients will undergo the Dual-energy X-ray absorptiometry (DXA) and the muscle strength assessment using the handgrip dynamometer
skeletal muscle mass
Dual-energy X-ray absorptiometry (DXA) measures the appendicular lean mass ( the sum of the lean mass of the arms and legs) and adjusted to the body mass index
Time frame: 4 months
muscle strenght
Three consecutive trials will be measured by the handgrip dynamometer between the dominant and non-dominant sides. the highest value will be used and adjusted to the body mass index
Time frame: 5 months
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