Affiliations: [a] Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan | [b] Faculty of Frontier Engineering, Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan | [c] Sports Medical Center, Japan Institute of Sports Sciences, Japan
Correspondence:
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Corresponding author: Noriaki Maeda, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan. Tel.: +81 82 257 5410; Fax: +81 82 257 5344; E-mail: norimmi@hiroshima-u.ac.jp.
Abstract: BACKGROUND: Local vibration (LV) used as part of the warm-up can stimulate a specific body part and muscle group, potentially increasing muscle flexibility and performance. However, the effect of its combination with static stretching (SS) has not been thoroughly examined. OBJECTIVE: To elucidate the acute effectiveness of combining LV and SS (V+S) on the ROM of ankle dorsiflexion, squat jump, counter-movement jump (CMJ) and the dynamic postural stability index (DPSI). METHODS: Fifteen healthy men who were regularly involved in recreational sports participated in this study. Static Stretching, V+S, and non-stretching condition (control) were assigned randomly and the intervention period for each condition was five minutes. RESULTS: The dorsiflexion improved significantly in SS and V+S compared to the control. The CMJ height decreased significantly following SS compared to V+S and control. CONCLUSIONS: This study suggests that V+S improves ankle dorsiflexion ROM without compromising jump performance. Local vibration device could be an effective element in warming up but further research is warranted.
Keywords: Static stretching with local vibration, vertical jump, dynamic postural stability
