Clinical and Experimental Pediatrics

Original Article

Pulmonology

Impact of obesity on pulmonary function of preschool children: an impulse oscillometry study

Anuvat Klubdaeng, Kanokporn Udomittipong, Apinya Palamit, Pawinee Charoensittisup, Khunphon Mahoran

Clin Exp Pediatr. 2025;68(4):319-325. Published online November 13, 2024

Question: Does obesity in preschool children affect lung function, and which obesity indices can predict such alterations?
Finding: Preschool children with obesity exhibit impaired lung function characterized by elevated total and peripheral airway resistance. Waist-to-height ratio was the strongest predictor of such changes.
Meaning: Early obesity prevention and treatment are needed. Monitoring waist-to-height ratio, body weight, and body mass index may help identify children at risk of altered lung function.

DOI: https://doi.org/10.3345/cep.2024.01053

Reference values for respiratory system impedance using impulse oscillometry in healthy preschool children

Jye Hae Park, Jung Won Yoon, Youn Ho Shin, Hye Mi Jee, Young Sun Wee, Sun Jung Chang, Jung Hwa Sim, Hye Yung Yum, Man Yong Han

Clin Exp Pediatr. 2011;54(2):64-68. Published online February 28, 2011

Crossref 38

Purpose

The normal values for lung resistance and lung capacity of children, as determined by impulse oscillometry (IOS), are different for children of different ethnicities. However, reference values there is no available reference value for Korean preschool children have yet to be determined. The aim of the present study was to determine the normal ranges of IOS parameters in Korean preschool...

DOI: https://doi.org/10.3345/kjp.2011.54.2.64

Reference values for respiratory system impedance using impulse oscillometry in school-aged children in Korea

Young Sun Wee, Hyoung Yun Kim, Da Wun Jung, Hye Won Park, Yoon Ho Shin, Man Yong Han

Clin Exp Pediatr. 2007;50(9):862-867. Published online September 15, 2007

Purpose : The impulse oscillometry (IOS) is applicable to young children because it requires minimal cooperation and a non-invasive method to measure the mechanics of respiratory system. This study aimed to develop the reference values in school-aged children in Korea, using IOS which is a modification of forced oscillation technique (FOT). Methods : Measurements were performed in 92 previously untrained healthy...

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Normal Predicted Value of Airway Resistance by Flow Interrupter Technique in Korean Primary School-Aged Children

Byong Kwan Son, Dae Hyun Lim, Jeong Hee Kim, Jong Woon Choi, Soon Ki Kim, Sei Woo Chung

Clin Exp Pediatr. 1996;39(8):1095-1102. Published online August 15, 1996

Purpose : To get the normal predicted value of airway resistance in Korean primary school-aged children by using flow interrupter technique which is simple and easy enough to be applicable even to young children. Methods : Among all the children of one primary school, we selected 964 (Male 469, Female 495). Excluded children were out of normal range in growth with Korean standard and/or...

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Airway Resistance after Exercise Loading Test in Asthmatic Children

Ji Eun Lee, Young Mi Hong, Kyung Hee Kim

Clin Exp Pediatr. 1994;37(10):1333-1339. Published online October 15, 1994

Exercise induced asthma(EIA) is defined as acute, reversible, usually self-immiting airway obstruction which develop after strenous exercise in patients with asthma. EIA is a bigger problem in children than adults due to more active and smaller airways which obstruct more easily when bronchospasm develops. The exercise elicited amny change in pulmonary function of asthmatic children. These change could be measured...

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