Relationships and agreement between Yo-Yo intermittent recovery test level 1 performance and laboratory VO <sub>2max</sub> in adolescent male soccer players: roles of maturity status, playing position, and running economy
YYIR1 is strongly associated with laboratory VO<sub>2max</sub> but systematically underestimates it. Coaches may use YYIR1 distance to monitor intermittent endurance, while interpreting estimated VO<sub>2max</sub> with caution. Larger, maturity-balanced samples are needed to clarify subgroup differences and improve youth-specific prediction accuracy.
Authors
- Indy Man Kit Ho (ORCID: https://orcid.org/0000-0003-4140-0513)
- Naidan Xu
- Haochong Liu (ORCID: https://orcid.org/0000-0002-3897-8595)
- Rou Wang
- Weiming Li (ORCID: https://orcid.org/0000-0001-8062-0979)
- Yaohui Xu
- Eric Tsz‐Chun Poon (ORCID: https://orcid.org/0000-0002-0842-1323)
- Weijun Liu (ORCID: https://orcid.org/0000-0003-2396-637X)
Institutions
- Chinese University of Hong Kong (HK)
- Technological and Higher Education Institute of Hong Kong (HK)
- Beijing Sport University (CN)
Publication Details
- Journal
- Annals of Human Biology
- Published
- 2025-11-25
- DOI
- https://doi.org/10.1080/03014460.2025.2566327
- Primary Topic
- Genetics and Physical Performance
- Type
- article
- Field-Weighted Citation Impact
- 0.00