<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-05-28T19:16:28Z</responseDate><request verb="GetRecord" identifier="oai:riuma.uma.es:10630/41446" metadataPrefix="marc">https://riuma.uma.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:riuma.uma.es:10630/41446</identifier><datestamp>2026-02-03T10:50:34Z</datestamp><setSpec>com_10630_2254</setSpec><setSpec>col_10630_37953</setSpec></header><metadata><record xmlns="http://www.loc.gov/MARC21/slim" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd">
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      <subfield code="a">Fernández-Rodríguez, Emilio</subfield>
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      <subfield code="a">Niznikowski, Tomasz</subfield>
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      <subfield code="a">Romero-Ramos, Óscar</subfield>
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      <subfield code="a">Markwell, Logan</subfield>
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      <subfield code="c">2023-10-03</subfield>
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      <subfield code="a">Introduction. The aim of this study was to evaluate the effect of COVID-19 on maintaining balance in highly skilled handball players during the performance of the modified Romberg test.&#xd;
&#xd;
Material and Methods. As part of a larger investigation that was initiated in 2019, twelve professional handball players were recruited to participate in a study that was designed to measure static balance performance. Following the initial pre-test, six participants (body height 184.8 ± 4.7 cm; body weight 85.5 ± 3.3 kg; age 21.3 ± 1.2 years) contracted COVID-19. The remaining six participants (body height 188.7 ± 2.6 cm; body weight 92.3 ± 3.7 kg; age 26.3 ± 3.3 years) never tested positive for COVID-19 and pre-sumably were not infected with the virus. The experimental design required all participants to complete an initial balance assessment (pre-test) and a later balance assessment (post-test). To fully analyze our data, we conducted a 2 (condition: COVID, no-COVID) X 2 (test: pre-test, post-test) ANOVA with repeated measures on the second factor.&#xd;
&#xd;
Results. Our research results showed that the skilled handball players who contracted COVID-19 mani-fested a significant decrease in balance performance from the pre-test which occurred prior to being infected with COVID-19 relative to the post-test which occurred following the COVID-19 infection.&#xd;
&#xd;
Conclusions. In conclusion, the results we have reported here are the first to show an objectively measured association between COVID-19 and the ability to maintain balance. Further intensive multifaceted research on this issue is needed.</subfield>
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      <subfield code="a">Polish Journal of Sport and Tourism. 30(3), 18-22,</subfield>
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      <subfield code="a">https://hdl.handle.net/10630/41446</subfield>
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      <subfield code="a">10.2478/PJST-2023-0015</subfield>
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      <subfield code="a">Deportistas - Enfermedades</subfield>
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      <subfield code="a">COVID-19</subfield>
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      <subfield code="a">Effect of COVID-19 on Maintaining Balance in Highly Skilled Handball Players.</subfield>
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