No acute effect of whole-body vibration on Roundhouse kick and countermovement jump performance of competitive Taekwondo athletes

Abstract Little is known about the effect of whole body vibration (WBV) has on specific sports action such as taekwondo kicking technique. Fifteen individuals (10 males and 5 females; 18.6 ± 2.1 years), performed two experimental protocols on separate days: A) 1 minute exposure at 26 Hz frequency of WBV followed by countermovement jump (CMJ) test; B) 1 minute exposure at 26 Hz frequency of WBV followed by kick test. A Student's t-Test analysis was performed to evaluate the difference between performance before and after vibration intervention. The CMJ height means (cm) were 34.1 ± 6.4 before and 34.2 ± 6.5 after WBV exposure. The CMJ maximal force means were 1582.6 ± 214.3 before WBV and 1595.7 ± 205.0 after WBV, while Impulse means (N.s) were 283.3 ± 48.6 before WBV and 2 82.6 ± 46.6 after WBV. The kick time means (ms) were 219.9±20.31 before WBV and 218.9±19.81 after WBV. No significant differences were found regarding the application of mechanical vibration for all variables. Thus, the vibration intervention (1 minute of WBV at 26 Hz and 6 mm) adopted in this pr esent study may have not been substantial to improve Roundhouse kick time (p=0.73), jump height (p=0.80), maximal force (p=0.78) and impulse (p=0.38) of taekwondo athletes. Future studies should investigate new vibration protocols (amplitude, frequency) and training (intensity, exercise, duration) t o determine optimal parameters.Resumo Pouco se sabe so...
Source: Revista Brasileira de Cineantropometria e Desempenho Humano - Category: Sports Medicine Source Type: research

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DiscussionThe interventions of education and medication alerts resulted in a significant increase in the percentage of patients receiving appropriate doses of dilTIAZem and a nonsignificant decrease in the incidence of hypotension. This process-oriented intervention resulted in an improvement in appropriate dilTIAZem doses at our site. Rate control was not statistically significantly different between the 2 groups. Long-term sustainability of this intervention requires further study.
Source: Journal of Emergency Nursing - Category: Nursing Source Type: research
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Source: International Journal of Nursing Sciences - Category: Nursing Source Type: research
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Source: International Journal of Orthopaedic and Trauma Nursing - Category: Nursing Source Type: research
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Source: Revista da Escola de Enfermagem da USP - Category: Nursing Source Type: research
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Source: Revista da Escola de Enfermagem da USP - Category: Nursing Source Type: research
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Source: Archivos de la Sociedad Espanola de Oftalmologia - Category: Opthalmology Tags: Arch Soc Esp Oftalmol Source Type: research
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