Abstract：
:The purpose of this investigation was to examine the acute effects of whole-body vibration (WBV) on muscular strength, flexibility, and heart rate (HR). Twenty adults (10 men, 10 women) untrained to WBV participated in the study. All subjects completed assessment of lower-extremity isokinetic torque, flexibility, and HR immediately before and after 6 minutes of WBV and 6 minutes of leg cycling ergometry (CYL), in randomized order. During WBV, subjects stood upright on a vibration platform for a total of 6 minutes. Vibration frequency was gradually increased during the first minute to a frequency of 26 Hz, which was maintained for the remaining 5 minutes. During CYL, power output was gradually increased to 50 W during the first minute and maintained at that power output for the remaining 5 minutes. Lower-extremity flexibility was determined using the sit-and-reach box test. Peak and average isokinetic torque of knee extension and flexion were measured by means of a motor-driven dynamometer with velocity fixed at 120 degrees .s. Change scores for the outcome measures were compared between treatments using Student's paired t-tests. Analysis revealed significantly greater HR acceleration with CYL (24.7 bpm) than after WBV (15.8 bpm). The increase of sit-and-reach scores after WBV (4.7 cm) was statistically greater (p < 0.05) than after CYL (0.8 cm). After WBV, increases in peak and average isokinetic torque of knee extension, 7.7% and 9.6%, were statistically greater than after CYL (p < 0.05). Average torque of knee flexion also increased more with WBV (+7.8%) than with CYL (-1.5%) (p < 0.05). The findings of this study indicate that short-term WBV standing elicits acute enhancements of lower-extremity muscular torque and flexibility, suggesting the application of this technology as a preparatory activity before more intense exercise.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Jacobs PL,Burns Pdoi
10.1519/JSC.0b013e3181839f19subject
Has Abstractpub_date
2009-01-01 00:00:00pages
51-7issue
1eissn
1064-8011issn
1533-4287journal_volume
23pub_type
杂志文章,随机对照试验abstract：:Murtagh, CF, Brownlee, TE, O'Boyle, A, Morgans, R, Drust, B, and Erskine, RM. Importance of speed and power in elite youth soccer depends on maturation status. J Strength Cond Res 32(2): 297-303, 2018-Maturation status is a confounding factor when identifying talent in elite youth soccer players (ESP). By comparing pe...
journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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更新日期：2003-11-01 00:00:00
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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abstract：:Till, K, Darrall-Jones, J, Weakley, JJ, Roe, GA, and Jones, BL. The influence of training age on the annual development of physical qualities within academy rugby league players. J Strength Cond Res 31(8): 2110-2118, 2017-Previous research in academy rugby league players has evaluated the development of physical quali...
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abstract：:Farinatti, P, Paes, L, Harris, EA, Lopes, GO, and Borges, JP. A simple model to identify risk of sarcopenia and physical disability in HIV-infected patients. J Strength Cond Res 31(9): 2542-2551, 2017-Early detection of sarcopenia might help preventing muscle loss and disability in HIV-infected patients. This study pr...
journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2020-10-09 00:00:00
