Every day that the Japan Rugby team have a rugby field session, they perform a thorough training preparation / activation in the early morning.
These sessions will or may include:
- vibration
- MRT (1v1 with coaches)
- PNF (1v1 with coaches)
- unstable loads
- core and hip activation
- rotational strength
- multijoint resistance movements
- position specific core and hip activation
You cannot expect players to perform at optimum level without a thorough preparation. If this is done earlier in the day, then the on field warm can be highly specific and skill based.