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Introduction and objective: Asthma, is the most common chronic inflammatory disease in childhood period. It can affect the daily life to an advanced level and may become vital. The purpose of this study is to compare physical fitness and anaerobic capacity in asthmatic children (AC) and non-asthmatic children (NC). Materials and methods: A total of 47 children participated in the study; 25 individuals with mild to moderate asthma and 22 healthy children were assessed. The assessed variables consist pulmonary function and peripheral muscle strength (PMS). Additionally, physical fitness was evaluated by using fitnessgram test battery, which includes body composition, modified shuttle walk test (MSWT), curl-up test, push-up test, and sit and reach test variables. Anaerobic capacity was measured with wingate anaerobic capacity test (WAnT) and counter-movement jump (CMJ) using a tri-axial accelerometer. Results: FEV1/FVC ratio (p = 0.01), MSWT (p = 0.001), push-up test (p = 0.01), and WAnT peak power (p = 0.05) were measured significantly to be found reduced in AC compared with that of NC. Between the two groups, PMS, curl-up test, sit and reach test, and CMJ were not significantly different (p = 0.05). High to moderate positive correlation was found among WAnT, CMJ parameters and FEV1, fat-free body mass (FFM), dominant handgrip, and quadriceps strengths (p = 0.05). Conclusions: Physical fitness level and anaerobic capacity were lower in AC compared with that of NC. Physical fitness parameters and anaerobic exercise capacity should be evaluated on the physiotherapy and rehabilitation program in AC.

Purpose: It has been well known that high serum immunoglobulin (Ig) E levels are associated with allergies, parasitic infections and some immune de ciencies; however, the potential effects and clinical implications of low IgE level on the human immune system are not well known. To determine the disorders accompanying very low IgE levels in children and adults.Methods: The patients whose IgE levels were determined between January 2015 and September 2020 were analyzed, and the ones with an IgE level <2.5 IU/mL were included in the study. Demographic data, immunoglobulin levels, auto-antibody results, and the diagnoses of the patients were noted from the electronic recording system of the hospital. Result: The IgE levels were measured in 34,809 patients (21,875 children, 12,934 adults), and 180 patients had IgE levels <2.5 IU/mL. Eighty patients were children (0.37%), 100 were adults (0.77%). There was a malignant disease in 45 (11 of them children) (25%), autoimmune diseases in 30 (4 of them children) (16.7%) and immunode ciency in 19 (16 of them children) (10.6%) of the patients. The most common reasons were other disases, immunode ciency and malignancy in children; and malignancy, autoimmune disorders and other diseases in the adults, in rank order. The IgE level did not show any correlation with the levels of other immunoglobulins. Conclusion: Although rare, a low IgE level has been shown to accompany malignancies, autoimmune disorders and immune de ciencies. Patients with very low IgE levels should be carefully monitored for systemic disorders.