In-season monitoring of hip and groin strength, health and function in elite youth soccer

Implementing an early detection and management strategy over two consecutive seasons

Martin Wollin, Kristian Thorborg, Marijke Welvaert, Tania Pizzari

Research output: Contribution to journalArticle

8 Citations (Scopus)


Objectives: The primary purpose of this study was to describe an early detection and management strategy when monitoring in-season hip and groin strength, health and function in soccer. Secondly to compare pre-season to in-season test results. Design: Longitudinal cohort study. Methods: Twenty-seven elite male youth soccer players (age: 15.07 ± 0.73 years) volunteered to participate in the study. Monitoring tests included: adductor strength, adductor/abductor strength ratio and hip and groin outcome scores (HAGOS). Data were recorded at pre-season and at 22 monthly intervals in-season. Thresholds for alerts to initiate further investigations were defined as any of the following: adductor strength reductions >15%, adductor/abductor strength ratio <0.90, and HAGOS subscale scores <75 out of 100 in any of the six subscales. Results: Overall, 105 alerts were detected involving 70% of players. Strength related alerts comprised 40% and remaining 60% of alerts were related to HAGOS. Hip adductor strength and adductor/abductor strength ratio were lowest at pre-season testing and had increased significantly by month two (p < 0.01, mean difference 0.26, CI95%: 0.12, 0.41 N/kg and p < 0.01, mean difference 0.09, CI95%: 0.04, 0.13 respectively). HAGOS subscale scores were lowest at baseline with all, except Physical Activity, showing significant improvements at time-point one (p < 0.01). Most (87%) time-loss were classified minimal or mild. Conclusions: In-season monitoring aimed at early detection and management of hip and groin strength, health and function appears promising. Hip and groin strength, health and function improved quickly from pre-season to in-season in a high-risk population for ongoing hip and groin problems.

Original languageEnglish
Pages (from-to)988-993
Number of pages6
JournalJournal of Science and Medicine in Sport
Issue number10
Publication statusPublished - Oct 2018


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