Author/Authors :
Ghazalian, Farshad Department of Physical Education - Science and Research Branch - Islamic Azad University, Tehran , Hakemi, Laleh Shahid Chamran University, Ahwaz , Pourkazemi, Lotfali Shahid Chamran University, Ahwaz , Akhoond, Mohammadreza Department of Statistics - Faculty of Mathematical Sciences and Computer - Shahid Chamran University, Ahwaz
Abstract :
Background: The aim was to evaluate effects of 5‑week whole body vibration (WBV) training with different amplitudes and progressive
frequencies on fibrinolytic/coagulative factors. Materials and Methods: 25 subjects were divided randomly in high or low‑amplitude
vibration, and control groups. Training consisted of 5‑week WBV with amplitudes 4 or 2 mm. Plasma samples were analyzed before
and after training. Statistical analysis was done using one‑way analysis of variance and Wilcoxon signed ranked test. P <0.05 was
considered significant. Results: High‑amplitude vibration caused an increase in tissue plasminogen activator (tPA) (P = 0.028)
(pretest: 1744.61 ± 707.95; posttest: 2313.63 ± 997.19 pg/ml), and decrease in plasminogen activator inhibitor‑1 (PAI‑1) (P = 0.033)
(pretest: 97.94 ± 34.37; posttest: 85.12 ± 36.92 ng/ml). Fibrinogen and plasminogen were not changed significantly. Low‑amplitude
vibration caused an increase in tPA (P = 0.006) (pretest: 2208.18 ± 1280.37; posttest: 3492.72 ± 3549.22 pg/ml). PAI‑1, fibrinogen
and plasminogen were not changed significantly. There were no significant differences between groups. Conclusion: Amplitude of
vibrations in WBV training may affect fibrinolytic factors.
