10 (2) (2021) 83 - 87 Journal of Physical Education, Sport, Health and Recreations http://journal.unnes.ac.id/sju/index.php/peshr Content Validation Instrument Rating Factors Contributing to Low Back Pain in Sports Dinan Mitsalina 1 , Tomoliyus 2 , Muhammad Imam Rahmatullah 3 , Aulia Gusdernawa- ti 4 , Masnur Ali 5 Universitas Negeri Jakarta, Indonesia 15 Universitas Negeri Yogyakarta, Indonesia 234 Abstract This research aims to arrange the assessment instrument to the risk factors of back pain in sports. This research method uses evaluation methods. The research subject is a document. The content validity test used in this study is the expert judgment with the Delphi technique. Validation test uses Content Validity Ratio (CVR) which uses three experts.. The results of the study showed that the items and instrument indicators for assessing the causes of sport injuries on the back showed a high CVR value. The conclusion of the assessment instrument that causes back pain sport injury has high fill validity. How to Cite Mitsalina, D., Et al. (2021). Content Validation Instrument Rating Factors Con- tributing to Low Back Pain in Sports. Journal of Physical Education, Sport, Health and Recreation, 10 (2), 83-87 © 2021 Universitas Negeri Semarang Article History Received May 2021 Accepted June 2021 Published Vol.10 No.(2) 2021 Keywords: Back Pain; Sport Injury; As- sessment; Content Validity; Instrument; Risk Factors.  Correspondence address : E-mail: dmitsalina@gmail.com p-ISSN 2460-724X e-ISSN 2252-6773