Journal
BMJ OPEN SPORT & EXERCISE MEDICINE
Volume 6, Issue 1, Pages -Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bmjsem-2020-000804
Keywords
Iron metabolism; Asthma; Adolescent; Sports & exercise medicine
Categories
Funding
- Finnish Ministry of Education and Culture [6/091/2011]
- Ministry of Social Affairs and Health [152/THL/TE/2012]
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Objectives To compare laboratory test results and lung function of adolescent organised sports participants (SP) with non-participants (NP). Methods In this cross-sectional study, laboratory tests (haemoglobin, iron status), and flow-volume spirometry were performed on SP youths (199 boys, 203 girls) and their NP peers (62 boys, 114 girls) aged 14-17. Results Haemoglobin concentration <120/130 g/L was found in 5.8% of SP and 5.1% NP (OR 1.20, 95% CI 0.54 to 2.68). Ferritin concentration below 15 g/L was found in 22.7% of both SP and NP girls. Among boys ferritin <30 g/L was found in 26.5% of SP and 30.2% of NP (OR 0.76, 95% CI 0.40 to 1.47). Among SP iron supplement use was reported by 3.5% of girls and 1.5% of boys. In flow-volume spirometry with bronchodilation test, 7.0% of SP and 6.4% of NP had asthma-like findings (OR 1.17, 95% CI 0.54 to 2.54); those using asthma medication, that is, 9.8% of SP and 5.2% of NP were excluded from the analysis. Conclusions Screening for iron deficiency is recommended for symptomatic persons and persons engaging in sports. Lung function testing is recommended for symptomatic persons and persons participating in sports in which asthma is more prevalent.
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