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Authors
Advisor(s)
Abstract(s)
Dentre as componentes da aptidão física, a aptidão cardiorrespiratória se destaca
como sendo muito relevante, seja em atletas de alto rendimento, dentro das diversas
modalidades desportivas, quanto em indivíduos não atletas. A medida padrão de
avaliação da aptidão cardiorrespiratória é o consumo máximo de oxigénio (VO2máx),
normalmente realizada em laboratório. No entanto, avaliar o VO2máx de forma direta
demanda custo financeiro alto, pessoal especializado e um tempo excessivo. Vários testes
de terreno têm sido desenvolvidos para substituir a avaliação direta do VO2máx, dentre
eles destaca-se o 20m multistage fitness test.
Objetivo
O objetivo do presente estudo foi realizar a validação criterial (concorrente e
preditiva) do 20m multistage fitness test, utilizando o procedimento habitual de condução
da velocidade de corrida, os “bips” sonoros e a condução luminosa utilizando o
PACETECH com a estimativa do VO2máx através da avaliação direta do consumo de O2.
Métodos Participaram do presente estudo, 41 voluntários com idades compreendidas entre
12 e 50 anos, de ambos os sexos, que foram submetidos a realização de três testes para
avaliação da potencia aeróbia. No primeiro teste, o VO2máx foi estimado através da
avaliação direta do consumo de O2, com a máquina Fitmate Pro, em um teste
submáximo em tapeterolante. No segundo teste, os avaliados realizaram o teste vaivém
tradicional, por “bips” sonoros. No terceiro teste, os avaliados realizaram o teste vaivém
com condução luminosa, utilizando o PACETECH. Para a estimativa do VO2máx nas
duas situações de terreno, foram utilizadas as equações matemáticas de Léger (17). Os
resultados foram analisados para totalidade da amostra, por sexo e por grupo etário.
Toda a análise estatística foi realizada com o software estatístico SPSS versão 28.0.
Resultados
Os resultados deste estudo mostram que os valores apresentados relativos à
validação concorrente, entre os valores de VO2máx estimados através da avaliação direta
do O2 e a distância percorrida nos testes de terreno com condução luminosa e com
condução sonora, são todas significativas com exceção das obtidas no sexo feminino,
quer na condução sonora quer na condução luminosa, e nos adolescentes na condução
luminosa. Com a exceção dos valores de correlação obtidos pelos adultos, todos os
valores de correlação entre o VO2máx e a distância percorrida são superiores no teste com condução sonora,
apresentando valores moderados a altos. Osresultados da análise de correlação referentes
à totalidade da amostra, indicaram uma correlação moderada para ambos os métodos,
condução sonora e luminosa indicando não existir diferenças significativas entre as
correlações entre os resultados obtidos nos três testes.
Conclusão
Podemos concluir que não existem diferenças significativas entre as correlações
entre osresultados obtidos como Fitmate Pro e cada uma das duas condições de condução
da velocidade de corrida no 20m multistage fitness test. Indicando um índice de validação
concorrente moderado para ambos os métodos, condução sonora e luminosa. Ambos os
testes de terreno (com condução sonora e com condução luminosa) apresentaram
estimativas superestimadas de VO2máx comparativamente às avaliações realizadas com
o Fitmate Pro. Confirmando a hipótese apresentada neste estudo, independentemente do
sexo e da idade, no teste de terreno por condução luminosa os participantes percorreram
uma distância superior comparativamente à distância percorrida por condução sonora.
Considerando os resultados alcançados neste estudo parece-nos necessário que outras
pesquisas sejam realizadas, com objetivo de investigar de forma aprofundada a eficiência
do método luminoso.
Among the several physical fitness components, cardiorespiratory fitness stands out as being very relevant, whether in high-performance athletes, within the various sports modalities, or in non-athletes. Maximum oxygen uptake (VO2máx) is the standard measure for assessing cardiorespiratory fitness is, usually performed in a laboratory. However, the direct VO2máx evaluation demands a high financial cost, specialized personnel, and excessive spending time. Several field tests have been developed to replace the direct evaluation of VO2máx; among them, the 20m multistage fitness test stands out. Objective This study aimed to perform the criteria validation (concurrent and predictive) of the 20m multistage fitness test using the usual procedure of driving the running speed, the audible "beeps" and the light driving using PACETECH with the assessment of O2 by direct measurement. Methods Forty-one volunteers aged 12-50 years old, of both sexes, underwent three aerobic power tests. In the first test, the VO2máx was estimated by directly evaluating O2 consumption with Fitmate Pro in a submaximal test on a treadmill. In the second test, the participants performed the traditional shuttle test, with beeps. The participants performed the shuttle test with light conduction in the third test, using PACETECH. Léger's mathematical equations were used to estimate the VO2máx in the two terrain test situations (17). The results were analyzed for the whole sample by sex and age group. All statistical analyses were performed with the statistical software SPSS version 28.0. Results Our results showed that the concurrent validation outputs between the values of VO2máx obtained by Fitmate Pro and the distance traveled in the field tests with light conduction and with sound conduction, were all significant, except in females in sound and in light conduction, and adolescents in light conduction. All the correlation values between VO2máx and distance traveled are higher in the test with sound conduction, XII presenting moderate to high values, excepting for the adult’s results. The results of the correlation analysis for the entire sample indicated a moderate correlation for both methods, sound and light conduction, indicating no significant differences between the correlations between the results obtained in the three tests. Conclusion We can conclude that there were no significant differences between the correlations between the results obtained with Fitmate Pro and each of the two driving conditions of running speed in the 20m multistage fitness test. In addition, our results indicate a moderate concurrent validation index for both sound and light driving methods. Both field tests showed overestimated VO2máx estimates compared to the assessments performed with the Fitmate Pro. The study’s hypothesis was confirmed when the participants walked a higher distance in the light-driven test than in the sound-driven test method. Considering the study results, further research is required to investigate the luminous method’s efficiency.
Among the several physical fitness components, cardiorespiratory fitness stands out as being very relevant, whether in high-performance athletes, within the various sports modalities, or in non-athletes. Maximum oxygen uptake (VO2máx) is the standard measure for assessing cardiorespiratory fitness is, usually performed in a laboratory. However, the direct VO2máx evaluation demands a high financial cost, specialized personnel, and excessive spending time. Several field tests have been developed to replace the direct evaluation of VO2máx; among them, the 20m multistage fitness test stands out. Objective This study aimed to perform the criteria validation (concurrent and predictive) of the 20m multistage fitness test using the usual procedure of driving the running speed, the audible "beeps" and the light driving using PACETECH with the assessment of O2 by direct measurement. Methods Forty-one volunteers aged 12-50 years old, of both sexes, underwent three aerobic power tests. In the first test, the VO2máx was estimated by directly evaluating O2 consumption with Fitmate Pro in a submaximal test on a treadmill. In the second test, the participants performed the traditional shuttle test, with beeps. The participants performed the shuttle test with light conduction in the third test, using PACETECH. Léger's mathematical equations were used to estimate the VO2máx in the two terrain test situations (17). The results were analyzed for the whole sample by sex and age group. All statistical analyses were performed with the statistical software SPSS version 28.0. Results Our results showed that the concurrent validation outputs between the values of VO2máx obtained by Fitmate Pro and the distance traveled in the field tests with light conduction and with sound conduction, were all significant, except in females in sound and in light conduction, and adolescents in light conduction. All the correlation values between VO2máx and distance traveled are higher in the test with sound conduction, XII presenting moderate to high values, excepting for the adult’s results. The results of the correlation analysis for the entire sample indicated a moderate correlation for both methods, sound and light conduction, indicating no significant differences between the correlations between the results obtained in the three tests. Conclusion We can conclude that there were no significant differences between the correlations between the results obtained with Fitmate Pro and each of the two driving conditions of running speed in the 20m multistage fitness test. In addition, our results indicate a moderate concurrent validation index for both sound and light driving methods. Both field tests showed overestimated VO2máx estimates compared to the assessments performed with the Fitmate Pro. The study’s hypothesis was confirmed when the participants walked a higher distance in the light-driven test than in the sound-driven test method. Considering the study results, further research is required to investigate the luminous method’s efficiency.
Description
Keywords
Saúde cardiovascular Avaliação cardiovascular Multistage fitness test Validação criterial Condução luminosa