Heavy : It is quite risky that the chosen player will get injured (depending on his prone of injury status). The chance of getting bad and good training result are 0% and 12% respectively. He also get and additional bonus of 3%.
Very Heavy : It is risky that the chosen player will get injured (depending on his prone of injury status). The chance of getting bad and good training result are 0% and 30% respectively. He also get and additional training bonus of 10%.
Fitness recovery is related to the workload as follows.
No training , +3 % per day.
Light , +3 % per day.
Medium , +3 % per day.
Heavy , +1% per day.
Very Heavy , -1 % per day.