Academic Journal
Yo-Yo IR2 test e teste de margaria: validade, confiabilidade e obtenção da frequência cardíaca máxima em jogadores jovens de futebol ; Yo-Yo IR2 test and margaria test: validity, reliability and maximum heart rate in young soccer players
| العنوان: | Yo-Yo IR2 test e teste de margaria: validade, confiabilidade e obtenção da frequência cardíaca máxima em jogadores jovens de futebol ; Yo-Yo IR2 test and margaria test: validity, reliability and maximum heart rate in young soccer players |
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| المؤلفون: | Silva, Cristiano Diniz da, Natali, Antônio José, Lima, Jorge Roberto Perrout de, Bara Filho, Maurício Gattás, Garcia, Emerson Silami, Marins, João Carlos Bouzas |
| بيانات النشر: | Brasil |
| سنة النشر: | 2011 |
| المجموعة: | Repositório Institucional da UFJF (Ri-UFJF, Universidade Federal De Juiz De Fora) |
| مصطلحات موضوعية: | Futebol, Intensidade de exercício, Desempenho, Frequência cardíaca, Teste de campo, Soccer, Exercise intensity, Performance, Heart rate, Field test |
| الوصف: | The aims of the present study were: i) to evaluate the construct validity of Yo-Yo Intermittent Recovery Test Level 2 (Yo-Yo IR2) and of the Margaria Test (MT ) with performance in high intensity exercise during official games in soccer players; ii) to verify the reliability (test-retest) of the two tests; iii) to compare the values of the maximal individual heart rate (MhR) obtained in those protocols and in game. Eighteen players (mean ± SD; age 14 ± 0.8 years, height 172 ± 9 cm, weight 64.3 ± 8.5 kg) belonging to the same team were assessed in test-retest referred protocols and in the percentage of time spent above 85% of MhR (PTS>85%MhR) in two official games of the U-15 Championship. high correlation was found between performance in the Yo-Yo IR2 and PTS>85%MhR (rs=0.71; p<0.05). There was not correlation between performance in MT and PTS>85%MhR (rs=0.44; p=0.06). The Yo-Yo IR2 was more variable and less reproducible (CV= 11%; CCI [95% IC]=0.38) than MT (CV= 1%; CCI [95% IC]=0.93). The highest value of MhR (p<0.001) occurred in the game (202 ± 8 beats.min-1). MhR in Yo-Yo IR2 (194 ± 4 beats.min-1) was lower (p<0,006) than MT (197 ± 6 beats.min-1). In conclusion, the Yo-Yo IR2 can be considered more valid to predict maintenance of high exercise intensity during a match, which is an important performance measure in soccer. however, there is need of strict standardization among the evaluation procedures for stability of the measure. MhR should be observed in several situations, mainly competitive, so that the highest individual value can be reached. ; Os objetivos do presente estudo foram: i) avaliar a validade de constructo do Yo-Yo Intermittente Recovery Test Level 2 (Yo-Yo IR2) e do teste de Margaria (TM) com o desempenho em alta intensidade de exercício durante jogos oficiais em jogadores de futebol; ii) verificar a confiabilidade (teste-reteste) dos dois testes; iii) comparar os valores da frequência cardíaca máxima (FCM) obtida nesses protocolos e em jogo. Dezoito jogadores (média ± DP; ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| Relation: | Revista Brasileira de Medicina do Esporte; http://dx.doi.org/10.1590/S1517-86922011000500010; https://repositorio.ufjf.br/jspui/handle/ufjf/8428 |
| DOI: | 10.1590/S1517-86922011000500010 |
| الاتاحة: | https://repositorio.ufjf.br/jspui/handle/ufjf/8428 https://doi.org/10.1590/S1517-86922011000500010 |
| Rights: | Acesso Aberto |
| رقم الانضمام: | edsbas.4A6011E2 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1590/S1517-86922011000500010 |
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