Normative Yo-Yo Intermittent Recovery Level 1 and Yo-Yo Intermittent Endurance Level 1 test values of boys aged 9-16years
| Autor: | Boris Schmitz, Carina Pfeifer, Andreas Faldum, Kiana Kreitz, Matthias Borowski, Stefan-Martin Brand |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Percentile medicine.medical_specialty Web of science Adolescent Physical fitness Physical Therapy Sports Therapy and Rehabilitation Age and sex 03 medical and health sciences 0302 clinical medicine Reference Values medicine Humans Orthopedics and Sports Medicine 030212 general & internal medicine Child business.industry 030229 sport sciences Test (assessment) Reference values Physical therapy Exercise Test Physical Endurance Normative Test performance business |
| Zdroj: | Journal of science and medicine in sport. 22(9) |
| ISSN: | 1878-1861 |
| Popis: | Objectives To provide age- and sex-specific reference values of Yo-Yo tests in children and adolescents. Design Systematic review. Methods A literature search for articles on Yo-Yo Intermittent (YYI) tests was performed in MEDLINE, SPORTDiscus, Web of Science and Google Scholar. Original reports on healthy children/adolescents 6–16 years of age were eligible. For each test, age- and sex-related reference values were calculated using global means and percentiles. Results Ninety-two studies (7398 participants) fulfilled the eligibility criteria. The YYI tests most frequently used were the Yo-Yo Intermittent Recovery Level 1 test (YYIR1, 57.8%), Yo-Yo Intermittent Endurance Level 1 test (YYIE1, 14.7%), Yo-Yo Intermittent Recovery Level 1 Children’s test (YYIR1C, 12.7%), Yo-Yo Intermittent Endurance Level 2 test (YYIE2, 8.8%) and the Yo-Yo Intermittent Recovery Level 2 test (YYIR2, 5.9%). Of these, 71.6% reported test results of boys, 17.6% reported mixed test results and 10.8% reported test results of girls. Smoothed centile curves for the YYIR1 and YYIE1 over the entire age range were generated for boys, revealing constantly increasing performance with increasing age. Conclusions YYI tests values differ with respect to age and sex. In boys, development of YYIR1 and YYIE1 test values (6–16 years of age) was different, suggesting better applicability of the YYIR1 test for boys >13 years of age. The results may be used to rate YYI test performance for continuous screening and to identify children with low physical fitness. Since limited data was available of females, further research on YYI tests is needed with respect to sex-specific results. |
| Databáze: | OpenAIRE |
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