Measures of power but not fatigue are influenced by whole body vibration prior to vigorous cycling

  • Goutsis D
  • Hall T
  • Anderson A
  • et al.
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Background: Whole body vibration (WBV) has been linked to improved performance measures in activities it immediately precedes. Conversely, static stretching (STST) has been cited in many studies as having an inhibitory effect when conducted immediately prior to activities requiring maximal force output. The impact of various types of warm-up on vigorous physical activity is not completely understood. Cycling is a laboratory activity well suited for laboratory settings, and theWingate Anaerobic Test (WAnT) is widely used for assessing power and fatigue characteristics during maximal cycling. Purpose: A deeper understanding of the effect of warmup on fatigue characteristics during the WAnT may lead to better understanding among physical therapists on how to best construct training and rehabilitation programs. The goal of this study was to explore the effects of type of warm-up on measures of power and fatigue while completing a maximal bout of anaerobic cycling. Methods: Thirty four women (23.15±2.57 yr, 169.32±6.32 cm, 65.57±12.75 kg) completed this study. Inclusion criteria included women between the ages of 18 and 30 who were apparently healthy and physically active (30 min/day, 3 days/week for at least 3 months). Individuals with lower extremity pathology or who regularly cycle were excluded. Participants visited the laboratory on three occasions. Using a counterbalanced design, they completed the Wingate Anaerobic Test (WAnT) following three standardized warm-up protocols: WBV, STST, and no activity or control (CON). Subjects then rode an electronically-braked cycle ergometer at maximal intensity for 30 seconds. Conditions were controlled and measured by computer. Indices of peak power (PP), mean power (MP), and fatigue index (FI) were calculated using 5-second time periods. Repeated measures ANOVA were used for statistical analysis. Statistical significance was set at the p≤.05 level. Results: Significant differences were found between conditions for PP [F(2,32) = 4.900, p≤0.014)] and MP [F(2,32) = 6.299, p≤0.005)], respectively. Pairwise comparisons using the Bonferroni correction indicated that both PP (p≤0.018) and MP (p≤0.003) were significantly different between WBV and CON conditions. No pairwise differences were found between WBV and STST. Non-significant differences were found between the warm-up conditions for FI [F(2,32) = .821, p≤0.449)]. Conclusion(s): The measures for peak power and mean power were improved following WBV. These findings suggest WBV had a stimulatory effect upon performance in this study. Conversely, no differences were found between conditions regarding fatigue index. This element suggests that the types of warm-up used in this study were essentially neutral in effecting staying power during maximal cycling. Implications: While power measures were affected, the fatigue characteristics were not affected by the types of warm up used in this study. These findings may help physical therapists to better understand the impact of warm-up on fatigue characteristics during maximal forms of therapeutic exercise.




Goutsis, D. K., Hall, T. L., Anderson, A. A., Crawford, M. A., & Hoover, D. L. (2015). Measures of power but not fatigue are influenced by whole body vibration prior to vigorous cycling. Physiotherapy, 101, e474–e475.

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