Acute Effects of Whole-Body Vibration Warm-up on Leg and Vertical Stiffness During Running

• Giorgos P. Paradisis ^[1] ; Panagiotis T. Pappas ^[1] ; Giorgos Dallas ^[1] ; Elias G. Zacharogiannis ^[1] ; Jérémy Rossi ^[2] ; Thomas Lapole ^[2]
  1. [1] National and Kapodistrian University of Athens

     National and Kapodistrian University of Athens

     Dimos Athens, Grecia

     
  2. [2] University of Lyon System

     University of Lyon System

     Arrondissement de Lyon, Francia

     
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 35, Nº. 9, 2021, págs. 2433-2438
• Idioma: inglés
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• Resumen

  • Although whole-body vibration (WBV) has been suggested as a suitable and efficient alternative to the classic warm-up routines, it is still unknown how this may impact running mechanics. Therefore, the aim of this study was to investigate the effect of a WBV warm-up procedure on lower-limb stiffness and other spatiotemporal variables during running at submaximal speed. Twenty-two males performed 30-second running bouts at 4.44 m[middle dot]s-1 on a treadmill before and after a WBV and control warm-up protocols. The WBV protocol (vibration frequency: 50 Hz, peak-to-peak displacement: 4 mm) consisted of 10 sets of 30-second dynamic squatting exercises with 30-second rest periods within sets. Leg and vertical stiffness values were calculated using the spring mass model. The results indicated significant increases only after the WBV protocol for leg stiffness (3.4%), maximal ground reaction force (1.9%), and flight time (4.7%). Consequently, the WBV warm-up protocol produced a change in running mechanics, suggesting a shift toward a more aerial pattern. The functional significance of such WBV-induced changes needs further investigation to clearly determine whether it may influence running economy and peak velocity.