The aim of this study was to investigate the effects of a single bout of whole-body vibration (WBV) on running gait. The running kinematic of sixteen male marathon runners was assessed on a treadmill at iso-efficiency speed after 10 min of WBV and SHAM (i.e. no WBV) conditions. A high-speed camera (210 Hz) was used for the video analysis and heart rate (HR) was also monitored. The following parameters were investigated: step length (SL), flight time (FT), step frequency (SF), contact time (CT), HR and the internal work (WINT). Full-within one-way analysis of variance (ANOVA) of the randomised crossover design indicated that when compared to SHAM conditions, WBV decreased the SL and the FT by ~4% (P < 0.0001) and ~7.2% (P < 0.001), respectively, and increased the SF ~4% (P < 0.0001) while the CT was not changed. This effect occurred during the first minute of running: the SL decreased ~3.5% (P < 0.001) and SF increased ~3.3% (P < 0.001). During the second minute the SL decreased ~1.2% (P = 0.017) and the SF increased ~1.1% (P = 0.02). From the third minute onwards, there was a return to the pre-vibration condition. The WINT was increased by ~4% (P < 0.0001) during the WBV condition. Ten minutes of WBV produced a significant alteration of the running kinematics during the first minutes post exposure. These results provide insights on the effects of WBV on the central components controlling muscle function.

Acute effects of whole-body vibration on running gait in marathon runners / J. Padulo, D. Filingeri, K. Chamari, G. Migliaccio, G. Calcagno, G. Bosco, G. Annino, J. Tihanyi, F. Pizzolato. - In: JOURNAL OF SPORTS SCIENCES. - ISSN 0264-0414. - 32:12(2014 Jul 21), pp. 1120-1126. [10.1080/02640414.2014.889840]

Acute effects of whole-body vibration on running gait in marathon runners

J. Padulo
Primo
;
2014-07-21

Abstract

The aim of this study was to investigate the effects of a single bout of whole-body vibration (WBV) on running gait. The running kinematic of sixteen male marathon runners was assessed on a treadmill at iso-efficiency speed after 10 min of WBV and SHAM (i.e. no WBV) conditions. A high-speed camera (210 Hz) was used for the video analysis and heart rate (HR) was also monitored. The following parameters were investigated: step length (SL), flight time (FT), step frequency (SF), contact time (CT), HR and the internal work (WINT). Full-within one-way analysis of variance (ANOVA) of the randomised crossover design indicated that when compared to SHAM conditions, WBV decreased the SL and the FT by ~4% (P < 0.0001) and ~7.2% (P < 0.001), respectively, and increased the SF ~4% (P < 0.0001) while the CT was not changed. This effect occurred during the first minute of running: the SL decreased ~3.5% (P < 0.001) and SF increased ~3.3% (P < 0.001). During the second minute the SL decreased ~1.2% (P = 0.017) and the SF increased ~1.1% (P = 0.02). From the third minute onwards, there was a return to the pre-vibration condition. The WINT was increased by ~4% (P < 0.0001) during the WBV condition. Ten minutes of WBV produced a significant alteration of the running kinematics during the first minutes post exposure. These results provide insights on the effects of WBV on the central components controlling muscle function.
internal work; kinematic analysis; heart rate; iso-efficiency speed; motor control; adult; article; biomechanics; controlled clinical trial; controlled study; crossover procedure; endurance; gait; heart rate; human; male; physiologic monitoring; physiology; randomized controlled trial; running; skeletal muscle; vibration; videorecording; adult; biomechanical phenomena; cross-over studies; gait; heart rate; humans; male; monitoring; physiologic; muscle; skeletal; physical endurance; running; vibration; video recording
Settore M-EDF/02 - Metodi e Didattiche delle Attivita' Sportive
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/671187
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