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MILLS GRIT ® ATHLETIC is a 30 minute high-intensity interval training (HIIT) course based on the reinforcement training method, aimed at giving you the same performance as an athlete.

| Basic advanced | |
| reaction speed | Base |
| Flexibility | primary |
| Coordination | Lower limbs |
| High intensity training | |
| Upper body strength | 25kg |
| basic training | |
| Lower body strength | 60kg |
| core strength | primary |