Subjects were randomly divided into 1 of 2 groups (WBV or
stretching without WBV: FLEX). The WBVgroup performed 2 sessions of stretching and massage on the FreeMotion
Fitness iTonic vibration platform (Figure 1) per day for 3
consecutive days. The first session was performed immediately
after the exercise session with another session later the
same day. Each WBV sessions consisted of 30 seconds of
massage (50 Hz; amplitude, 2 mm) with the gastrocnemius,
hamstring, and quadriceps muscle groups being placed on
the platform (Figures 2 and 3), which was covered by a 1’
foam pad. After the massage treatment, subjects stood on the
platform and performed 60-second (35 Hz; amplitude, 2 mm)
stretches (Figures 4–6) for the same muscle groups. Each
stretch was repeated twice for a total of 6 minutes of flexibility exercise. The FLEX group performed 2 stretching
sessions per day, with similar stretches being performed but
without vibration stimulus.